plateform stringclasses 1
value | repo_name stringlengths 13 113 | name stringlengths 3 74 | ext stringclasses 1
value | path stringlengths 12 229 | size int64 23 843k | source_encoding stringclasses 9
values | md5 stringlengths 32 32 | text stringlengths 23 843k |
|---|---|---|---|---|---|---|---|---|
github | ylucet/CCA-master | plq_coSplit_test.m | .m | CCA-master/tests/plq_coSplit_test.m | 6,280 | utf_8 | 1c012fd8273507e6b5c09482c30fec29 | function tests = plq_coSplit_test()
tests = functiontests(localfunctions);
end
% Author: Mike Trienis, Bryan Gardiner
% For: Dr. Yves Lucet
% Whatsit: A test file for plq convex hull function plq_coSplit.
% I = Indicator, E = Exponential, C = Conjugate, L = Linear, Q = Quadratic
function [b] = testPointIndi... |
github | ylucet/CCA-master | plq_add_Test.m | .m | CCA-master/tests/plq_add_Test.m | 2,283 | utf_8 | 72223477778971e187982a08e027ab67 | %% Author: Mike Trienis
%% For: Dr. Yves Lucet
%% Whatsit: A test file for plq_add, adds two piecewise linear quadratic functions.
%%mode(-1);
%%L: Linear, Q: Quadratic, I: Indicator, PW: Piecewise
%%__test_set = 'PLQ: plq_add';
function tests = plq_add_Test
tests = functiontests(localfunctions);
end
f... |
github | ylucet/CCA-master | plq_split_test.m | .m | CCA-master/tests/plq_split_test.m | 1,441 | utf_8 | 4e61a0e2842691344452cc25b35fd779 |
function tests = plq_split_test()
tests = functiontests(localfunctions);
end
%perform all tests by comparing with plq functions
function b = prim(p)
P=gph_plq(p);
q=plq_scalar(p,3);Q=gph_plq(q);
QQ=gph_scalar(P,3);
b = gph_isEqual(Q,QQ);
q=plq_scalar(p,0);Q=gph_plq(q);
QQ=gph_scalar(P,0);
b = b & gph... |
github | ylucet/CCA-master | plq_min_test.m | .m | CCA-master/tests/plq_min_test.m | 2,474 | utf_8 | f304c3a87b23864e5c6b724a481332d4 | function tests = plq_min_test()
tests = functiontests(localfunctions);
end
% Author: Mike Trienis
% For: Dr. Yves Lucet
% Whatsit: A test file for plq_max, adds two piecewise linear quadratic functions.
%L: Linear, Q: Quadratic, I: Indicator, PW: Piecewise
function [b] = testLLMin(testCase)
b = false;
p... |
github | ylucet/CCA-master | gph_check_test.m | .m | CCA-master/tests/gph_check_test.m | 1,873 | utf_8 | 2dda0168ec6cbbf03c72e215ef8774bb | function tests = gph_check_test()
tests = functiontests(localfunctions);
end
function [b] = testBoundedDomain(testCase)
f=[-1 -1 1 1;-1 0 0 1;inf 0 0 inf];
b=gph_check(f);
assert(b)
end
function [b] = testXNondecreasing(testCase)
f=[-1 -2 1 1;-1 0 0 1;0 0 0 0];
b= ~gph_check(f);
assert(b)
end
function [b... |
github | ylucet/CCA-master | gph_pa_test.m | .m | CCA-master/tests/gph_pa_test.m | 2,336 | utf_8 | 80b0ff973df76cc4d3246354181f3010 | function tests = gph_pa_helper()
tests = functiontests(localfunctions);
end
% I = Indicator, E = Exponential, C = Conjugate, L = Linear, Q = Quadratic
function b=helper(f1, f2, lambda)
rplq = plq_pa(f1,f2,lambda);
G1=gph_plq(f1);
G2=gph_plq(f2);
G = gph_pa(G1,G2,lambda);
rgph = plq_gph(G);
b = plq_isEqual... |
github | ylucet/CCA-master | plq_conv_test.m | .m | CCA-master/tests/plq_conv_test.m | 4,951 | utf_8 | 70767f3da63fe338cf326098a0f4657f | function tests = plq_conv_test()
tests = functiontests(localfunctions);
end
% Author: Mike Trienis
% For: Dr. Yves Lucet
% Whatsit: A test file for plq
%L: Linear, Q: Quadratic, I: Indicator
function b = testInfconvLft(testCase)
b = false;
plqf = [inf,1/4,0,0];
plqg = [inf,1,0,0];
result = plq_infco... |
github | ylucet/CCA-master | gph_plq_test.m | .m | CCA-master/tests/gph_plq_test.m | 2,844 | utf_8 | 5730c9c9fb170d8323974d470698c991 | function tests = gph_plq_test()
tests = functiontests(localfunctions);
end
% Unit test file for gph_plq
function b = testAbs(testCase)
%abs function
p = [0,0,-1,0;inf,0,1,0];
G = gph_plq(p);
E = [-1, 0, 0, 1; -1, -1, 1, 1; 1, 0, 0, 1];
b = all(G==E);
assert(all(all(b))) ;
end
function b = testQuartic(testC... |
github | ylucet/CCA-master | removeTriplicate_test.m | .m | CCA-master/tests/removeTriplicate_test.m | 604 | utf_8 | 19efe538d0b1d7571029d87534dd2e8d | function tests = removeTriplicate_test()
tests = functiontests(localfunctions);
end
function [b] = test1(testCase)
M=[1 2 2 3 3 3 4 4 4 4];
[N,k]=removeTriplicate(M,1E-6);
b=all(N==[1 2 2 3 3 4 4]) & all(k==[1 2 3 4 6 7 10]);
assert(b)
end
function [b] = test2(testCase)
M=[1 2 2 3 3 3 4 4 4 4 1 1];
[N,k]... |
github | ylucet/CCA-master | plq_isEqual_test.m | .m | CCA-master/tests/plq_isEqual_test.m | 1,280 | utf_8 | 1eaeeac91c15c077770bee61fa7d0714 | function tests = plq_isEqual_test()
tests = functiontests(localfunctions);
end
function b = test1(testCase)
%domain is split
p1=[inf 1 0 0];
p2=[0 1 0 0;inf 1 0 0];
b=plq_isEqual(p1,p2);
%small values
eps=1e-12;
p2=[inf 1+eps eps -eps];
b=b & plq_isEqual(p1,p2);
%small values + split partitions
p... |
github | ylucet/CCA-master | gph_add_test.m | .m | CCA-master/tests/gph_add_test.m | 5,664 | utf_8 | 65879a46c95294e9112bc35b1f1d23ce | function tests = gph_add_test()
tests = functiontests(localfunctions);
end
% Unit test file for gph_add
% The codes for the gph model are as follows:
% - I represents a point indicator
% - L represents a linear plq region (flat line in the gph)
% - Q represents a quadratic plq region (non-flat line in the gph)
% - B ... |
github | ylucet/CCA-master | gph_scalar_test.m | .m | CCA-master/tests/gph_scalar_test.m | 1,429 | utf_8 | 86d9179e6949dd73a0b94cf9da0ad91f | function tests = gph_scalar_test()
tests = functiontests(localfunctions);
end
%perform all tests by comparing with plq functions
function b = helper(p)
P=gph_plq(p);
q=plq_scalar(p,3);
Q=gph_plq(q);
QQ=gph_scalar(P,3);
b = gph_isEqual(Q,QQ);
q=plq_scalar(p,0);
Q=gph_plq(q);
QQ=gph_scalar(P,0);
e... |
github | ylucet/CCA-master | gph_isEqual_test.m | .m | CCA-master/tests/gph_isEqual_test.m | 886 | utf_8 | 34fd01765157409680c99adb0b725d05 | function tests = gph_isEqual_test()
tests = functiontests(localfunctions);
end
function b = test1(testCase)
%domain is split
p1=[inf 1 0 0];g1=gph_plq(p1);
p2=[0 1 0 0;inf 1 0 0];g2=gph_plq(p2);
b=gph_isEqual(g1,g2);
%small values
eps=1e-9;
p2=[inf 1+eps eps -eps];g2=gph_plq(p2);
b=b & gph_isEqual(g1... |
github | ylucet/CCA-master | plq_conv_buildl.m | .m | CCA-master/macros/plq/plq_conv_buildl.m | 3,414 | utf_8 | 089e1a7e917222922d8c21336aad477b | %build a linear function, f1i, is the function index, and x1i is the x-value we wanted to evaluate the function on.
%similarly f2i is the function index of the second function, and x2i corresponds to the value we evaluate the function on.
%In other words constructs a linear function from (x1i,f[f1i](x(x1i))), to (x(x2i... |
github | ylucet/CCA-master | plq_conv_qlq.m | .m | CCA-master/macros/plq/plq_conv_qlq.m | 1,138 | utf_8 | 354736313b4d338c3590428c16b49aea | % This function processes a function containing a QLQ segment, where the
% linear piece is converging to the convex hull of the quadratics. Given
% the index i of the linear piece, it removes it, interpolating the
% quadratics to their intersection point. It returns the new function,
% and the index of the left quadr... |
github | ylucet/CCA-master | pl_gph.m | .m | CCA-master/macros/plq/pl_gph.m | 642 | utf_8 | 867a7663eb9624b241e590a508509e02 | %convert the subdifferential of a gph function into a piecewise-linear function
%error out if the graph of the subdifferential is not a function (it is always
%piecewise-linear but may have vertical pieces).
function q = pl_gph(G)
eps=1e-8;
x0 = G(1,1:end-1);x1 = G(1,2:end);
if any(find(abs(x1-x0)<eps))
q=[]; c... |
github | ylucet/CCA-master | plq_eval.m | .m | CCA-master/macros/plq/plq_eval.m | 1,332 | utf_8 | bc3d1ccabb95e50ed5f888cf94436e04 | %%%%%%%%%%%%%%EVALUATES A PLQ FUNCTION ON A GRID%%%%%%%%%%%%%%
function [y, k] = plq_eval(plqf,X)
%evaluate a plq function on a grid y=plqf(x),
%x(k(1,l-1))<=X(k(2,l))<=X(k(3,l))<=x(k(1,l)) i.e. k(:,l)=[i;jl;jr]
x=plqf(:,1);a=plqf(:,2);b=plqf(:,3);c=plqf(:,4);
n1=length(x);n=length(X);
if size(X,1)<size(X,... |
github | ylucet/CCA-master | plq_lft.m | .m | CCA-master/macros/plq/plq_lft.m | 2,970 | utf_8 | 80c07702f7d844e6aac7a4feecb75260 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%PLQ CONJUGATE%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function plqfstar = plq_lft(plqf,isConvex)
if nargin<=1
isConvex=false;
end;%default to non-convex functions
if ~isConvex
plqf=plq_co(plqf);
end;
x=plqf(:,1);a=plqf(:,2);b=plqf(:,3);c=plqf... |
github | ylucet/CCA-master | dl_maxoninterval.m | .m | CCA-master/macros/plq/dl_maxoninterval.m | 787 | utf_8 | 59decfa80407d18793aca4e2c2a0c2b9 | %computes the maximum of two functions under the assumption that difference of q1 - q2 is linear function!!!!!
function [plq,maxq] = dl_maxoninterval(q1,q2,lb,ub,a,b,c)
if b == 0
%horizontal line, i.e. no intersection with the x-axis
plq = maxoninterval(q1,q2,lb,ub,a,b,c);
if (c > 0)
maxq = [1,l... |
github | ylucet/CCA-master | plq_diff.m | .m | CCA-master/macros/plq/plq_diff.m | 156 | utf_8 | b6183f2b53373ceab1df8bdf97be2542 | %compute the piecewise linear derivative of p
%errors out (in pl_gph) if dp is not a function
function dp = plq_diff(p)
G=gph_plq(p);
dp=pl_gph(G);
end% |
github | ylucet/CCA-master | plq_pa.m | .m | CCA-master/macros/plq/plq_pa.m | 1,125 | utf_8 | 52476e3ee72032dc09e0feb1c4ec5515 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%PROXIMAL AVERAGE%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function pa = plq_pa(f1,f2,lambda_pa,isConvex)
if nargin<=3
isConvex=true;
end;%default to convex functions
pa=[];%default value in case of error
%f[lambda] = (lambda(f1 + (1/2)normsquared)* + (1... |
github | ylucet/CCA-master | plq_gpa.m | .m | CCA-master/macros/plq/plq_gpa.m | 372 | utf_8 | 4ce033348ff00b5b6c66e54118a84053 | %generalized proximal average from
%W. Hare. A Proximal Average for Nonconvex Functions:
%A Proximal Stability Perspective. SIOPT
function pa = plq_gpa(p0,p1,lambda,r)
pa1 = plq_scalar(plq_me(p0,1/r,false), -(1-lambda));
pa2 = plq_scalar(plq_me(p1,1/r,false), -lambda);
pa=plq_add(pa1,pa2);
pa=plq_me(pa,1/(r+la... |
github | ylucet/CCA-master | plq_maxoninterval.m | .m | CCA-master/macros/plq/plq_maxoninterval.m | 1,293 | utf_8 | c0803fd5c071801dbaf2a21496257b6e | %l1,l2,q1,q2 are all represented by the formar [a,b,c] which represents ax^2 + bx + c
%Each corresponding function will find the maximum function between two functions
%either quadratic-linear, quadratic-quadratic, linear-linear which is valid only
%within the interval [lb,ub] the lower and upper bound.
%main function... |
github | ylucet/CCA-master | dq_maxoninterval.m | .m | CCA-master/macros/plq/dq_maxoninterval.m | 2,316 | utf_8 | b48229058294bd7a7a72ba75df6ebe1f | %computes the maximum of two functions under the assumption that the difference of q1 - q2 is quadratic!!!!!
function [plq,maxq] = dq_maxoninterval(q1,q2,lb,ub,a,b,c)
delta = b.^2 - 4*a*c; %calculating the discriminant of the quadratic
%printf(" a:
if delta > 0
%there are two real roots
%fin... |
github | ylucet/CCA-master | plq_isEqual.m | .m | CCA-master/macros/plq/plq_isEqual.m | 912 | utf_8 | ec1209d3ad6cdaaae0b413ff85b65343 | %test whether 2 plq functions are equal
%use the clean function to round small values
%and contrary to the isEqual function compacts small intervals
function b = plq_isEqual(p1,p2)
%remove common inf values to prevent inf-inf=NaN
isP1inf=(p1(end,1)==inf);
isP2inf=(p2(end,1)==inf);
large=realmax;
i1=find(p1==i... |
github | ylucet/CCA-master | plq_prox.m | .m | CCA-master/macros/plq/plq_prox.m | 624 | utf_8 | 952b3b805996a1c6b734ec8965dc749b | %compute the proximal mapping of a PLQ function
%from the graph of the subdifferential
%only works for convex functions
function q=plq_prox(p,alpha)
eps=1e-8;
if alpha<0
cerror('alpha must be nonnegative');
end;
G = gph_plq(p);
P = [1 alpha;1 0] * G(1:2,:);
P(3,:)=zeros(size(1,size(P,2)));
q = pl_gph... |
github | ylucet/CCA-master | mikeplq_lft.m | .m | CCA-master/macros/plq/mikeplq_lft.m | 2,485 | utf_8 | 4a8a376c96a6cdc8dbca409bb0666fd2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%PLQ CONJUGATE%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function plqfstar = mikeplq_lft(plqf)
x=plqf(:,1);a=plqf(:,2);b=plqf(:,3);c=plqf(:,4);
n = size(x,1); %number of rows
i=1;j=1;
while i <= n,
plqType = getType(n,x,a,b,c,i);
switch plqType,
... |
github | ylucet/CCA-master | plq_clean.m | .m | CCA-master/macros/plq/plq_clean.m | 2,258 | utf_8 | dc8dc83b379d4c42cedca04b558f4848 | %%%%%%%%%PLQ CONJUGATE HELPER FUNCTION%%%%%%%%%%%%%
function [plqClean] = plq_clean(plqDirty)
eps=1E-6;%1E-6;precision below which numbers are rounded to zero
% a Temporary Vector or matrix to check presence of infinite
dplq=plqDirty(2:end-1,:)-plqDirty(1:end-2,:);
%clear duplicate point values e.g [0,1,0,1;0... |
github | ylucet/CCA-master | conv_interval_func.m | .m | CCA-master/macros/plq/conv_interval_func.m | 2,426 | utf_8 | d8db504dd85cad8da52b3d2ab26d23e4 | %The following routine solves [PROBLEM 2.].
function [plqco] = conv_interval_func(x,a,b,c,x1,x3,x5),
EPS=1E-10; x(1)=x1;x(3)=x3;x(5)=x5;
%solving the quadratic for x(2)
if a(1) ~= 0 & x(5) < inf
A1 = -a(1);
B1 = 2*a(1)*x5;
C1 = c(1) + b(1)*x5 -... |
github | ylucet/CCA-master | maxoninterval.m | .m | CCA-master/macros/plq/maxoninterval.m | 628 | utf_8 | ef4a1cb5891e30edc2832b2b459545fd | %calculates the max between two functions that do not intersect within the given interval.
function [plq,i] = maxoninterval(q1,q2,lb,ub,a,b,c)
if all(isinf([lb,ub]))
m=0;%pick any point
else%at most one bound is infinite
lb1=lb;ub1=ub;
if lb==-inf
lb1=ub-1;
end;
... |
github | ylucet/CCA-master | getType.m | .m | CCA-master/macros/plq/getType.m | 646 | utf_8 | b963a76342ad79eed66b859448a50f81 | %%%%%%%%%PLQ CONJUGATE HELPER FUNCTION%%%%%%%%%%%%%
function plqType=getType(n,x,a,b,c,i)
if a(i) == 0
plqType = 1;%part is linear
else plqType = 2;%part is quadratic
end
if n == 1 & x(i) == inf & a(i) == 0
plqType = 3;%LINE - TO - POINT
elseif n == 1 & x(i) < inf
%POINT -... |
github | ylucet/CCA-master | plq_scalar.m | .m | CCA-master/macros/plq/plq_scalar.m | 727 | utf_8 | 560ba03ddd66d62e121fe08f9ee1358e | %%%%%%%%%%%%%%PLQ SCALAR MULTIPLCATION FUNCTION%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
function q = plq_scalar(p,lambda)
%avoid 0 * inf
i=find(p==inf);j=find(p==-inf);
q = [p(:,1), lambda*p(:,2:4)];
%restore inf values;
if lambda >= 0
q(i)=inf;
else
q(i)=-inf;
%caref... |
github | ylucet/CCA-master | plq_conv_on_interval.m | .m | CCA-master/macros/plq/plq_conv_on_interval.m | 3,520 | utf_8 | 136f014a8ae025791037254a1c77f4f4 | %We assume x(1) < x(2) < x(3) < x(4) < x(5) are ordered and finite (no infinity values).
%In creating the PLQ hull we may need to create points x(2) and x(4).
%Note that x(1) is the LEFTBOUND, x(3) is the partition point, and x(5) is the RIGHTBOUND in our PLQ interval.
%_plq_conv_on_interval finds the convex hull on ... |
github | ylucet/CCA-master | plq_me.m | .m | CCA-master/macros/plq/plq_me.m | 1,423 | utf_8 | 14d93a30667f540fc25fed4ab4f9638b | %%%%%%%%%%%%%%PIECEWISE LINEAR QUADRATIC MOREAU ENVELOPE (WRAPPER) %%%%%%%%%%%%%%
function plqme = plq_me(plqf,lambda,isConvex)
if nargin<=2
isConvex=false;
end;%default to non-convex functions
a = plqf(:,2);
if (lambda < 0 | a(1) < 0 | a(end) < 0)
maxScale = plq_me_max_scale(plqf);
if (lambda < 0... |
github | ylucet/CCA-master | plq_rowalwaysinf.m | .m | CCA-master/macros/plq/plq_rowalwaysinf.m | 324 | utf_8 | ed134c2e4377a82b7305df411e88ad48 | % A polynomial is always infinite if a and b are not infinite
% and not NaN, and c is infinite.
function [alwaysinf, sgn] = plq_rowalwaysinf(plqf)
alwaysinf = ~(any(isinf(plqf(:,2:end-1)), 2) ......
| any(isnan(plqf(:,2:end-1)), 2)) ......
& isinf(plqf(:,end));
sgn = sign(plqf(:,end));... |
github | ylucet/CCA-master | plq_co.m | .m | CCA-master/macros/plq/plq_co.m | 394 | utf_8 | 84a6438464a1bd8dadfd7a74e702d207 | %%%%%%%%%%PLQ CONVEX HULL%%%%%%%%%%%%%%%%%%%%%%%%
%TODO, (1) UPDATE PLQ_EVAL FOR NONCONVEX FUNCTIONS?.
% (2) UPDATE PLQ_BUILD FOR NONCONVEX FUNCTIONS.
function plqco = plq_co(plqf, method)
% Allowed values for method: direct, split.
if nargin < 2
method = 'direct';
end;
if method == 'direct'
pl... |
github | ylucet/CCA-master | soqs_build.m | .m | CCA-master/macros/soqs/soqs_build.m | 5,023 | utf_8 | 5d3ade6e9a1bf1f46c923cddfcac3598 | % _soqs_build
%
% Builds a Shape-Preserving Osculatory Quadratic Spline (soqs) going
% through (x,f(x)) with derivative df(x) at (x,f(x)).
%
% The code is taken partially from Algorithm 574: Shape-Preserving
% Osculatory Quadratic Splines, Feb. 4, 1981 with permission from the
% Association for Computing Machinery (ACM... |
github | ylucet/CCA-master | soqs_choose.m | .m | CCA-master/macros/soqs/soqs_choose.m | 3,372 | utf_8 | 5050d77efb4aae22c93013e66d0cb794 | % _soqs_choose
%
% Auxillary function for _soqs_build to determine the type of spline
% regarding derivative slopes and distances between the spline end points.
%
% The code is taken partially from Algorithm 574: Shape-Preserving
% Osculatory Quadratic Splines, Feb. 4, 1981 with permission from the
% Association for Co... |
github | ylucet/CCA-master | soqs_slopes.m | .m | CCA-master/macros/soqs/soqs_slopes.m | 2,680 | utf_8 | aac2eddc8af85ce3b7b288e83cabd628 | % _soqs_slopes
%
% Auxillary function for _soqs_build to calculate the derivative at each
% data point. The slopes provided will insure that an osculatory
% quadratic spline will have one additional knot between two adjacent
% points of interpolation. Convexity and monotonicity are preserved
% wherever these conditions... |
github | ylucet/CCA-master | gph_ka.m | .m | CCA-master/macros/gph/gph_ka.m | 10,017 | utf_8 | 6448cbb26cb7e4dbecbab6b7fc75e706 | % The actual ka calculating function
% All matrices in GPH form and the output also is in GPH form
% We need 5 parameters, representations are quite obvious
% For notation sake, f3 = g here as mentioned in the paper
% Return value ka is the GPH matrix of the kernel average
% Note : The GPH matrix will have an even numb... |
github | ylucet/CCA-master | gph_isEqual.m | .m | CCA-master/macros/gph/gph_isEqual.m | 139 | utf_8 | baea777fec6ab7d18a888d6d313b2480 | %returns true if both functions are equal
function b = gph_isequal(g1,g2)
p1=plq_gph(g1);
p2=plq_gph(g2);
b = plq_isEqual(p1,p2);
end |
github | ylucet/CCA-master | gph_me1.m | .m | CCA-master/macros/gph/gph_me1.m | 816 | utf_8 | 6db3acd48b9b25ca52f496faae0cd5b2 | %works but requires gph_prox. Can we do better?
function gphstar = gph_me1(gph,lambda)
[b,n] = gph_check(gph);
if ~b
cerror('Unconsistent gph structure in gph_me1');
end;
%do not multiply 3rd row (values of f) to avoid 0*inf giving gphstar = [1 lambda; 0 1] * gph(1:2,:);
x = gph(1,:)';%s=gph(2,:);f=gph(3... |
github | ylucet/CCA-master | gph_isBounded.m | .m | CCA-master/macros/gph/gph_isBounded.m | 168 | utf_8 | d4a5346e041ef914a25558d0b4c03501 | %returns a 1x2 matrix
function B = gph_isBounded(gph)
B = isinf([(gph(2,2)-gph(2,1))/(gph(1,2)-gph(1,1)), (gph(2,end)-gph(2,end-1))/(gph(1,end)-gph(1,end-1))]);
end
|
github | ylucet/CCA-master | gph_prox.m | .m | CCA-master/macros/gph/gph_prox.m | 406 | utf_8 | 0dfa8497825f26f4ad3b641c61dc60be | %TO DO: TEST
%compute the proximal mapping of a GPH function
%from the graph of the subdifferential
%only works for convex functions
function Q = gph_prox(G,alpha)
if alpha<0
Q=[]; cerror('alpha must be nonnegative');
end;
eps=1e-8;
P = [1 alpha;1 0] * G(1:2,:);
P(3,:)=zeros(size(1,size(P,2)));
%convert ... |
github | ylucet/CCA-master | intervalIntersect.m | .m | CCA-master/macros/common/intervalIntersect.m | 338 | utf_8 | 20cfbfc07e398d3edde51acc558a546c | function J = intervalIntersect(I1,I2)
%compute the intersection of 2 intervals
%I1,I2: intervals stored as a 1x2 matrix: I1=[lb,ub]
%when ub < lb it means the empty set
%J: interval J=I1 intersection I2. (may be empty)
J(1,1)=max(I1(1),I2(1));
J(1,2)=min(I1(2),I2(2));
end
function b = intervalisempty(I)
... |
github | ylucet/CCA-master | cerror.m | .m | CCA-master/macros/common/cerror.m | 476 | utf_8 | 6979800df65514b0064c984b5be12456 | % All CCA functions should use this function instead of error(),
% so that we can act differently depending on when we're generating
% an error to pass a test or generating one for real. Currently
% this function could be eliminated by having __testing_errors = 9999
% in test.sci:errorTestWrapper(), but this way prese... |
github | ylucet/CCA-master | colMap.m | .m | CCA-master/macros/common/colMap.m | 384 | utf_8 | 9461e54cb1a9cb21e89387075ac3ed52 | % Map a function to each of the columns of a matrix, putting the resulting column vectors into the output matrix
% @param func A function that takes two parameters (the first is a column vector,
% the second the number of the current column) and returns a column vector
function out=colMap(func,m)
out=[]
s=si... |
github | ylucet/CCA-master | gph_plot.m | .m | CCA-master/macros/plots/gph_plot.m | 1,156 | utf_8 | 3d4ec654a8b20c3434c895ced533a50d | %plot the subdifferential graph of an unknown number of gph functions
%(limit of 5 gph functions)
%automatically compute the display window and extrapolate to its boundary
%see gph_version for utility functions _gph_plotbounds_gph_yCoord,_gph_extendGph
function gph_plot(varargin)
if(isempty(varargin))
error... |
github | ylucet/CCA-master | plq_plot.m | .m | CCA-master/macros/plots/plq_plot.m | 480 | utf_8 | 325f581208cb8172b688c23b6a05511e | %Quick plot of one or two PLQ functions
%x1, x5 can be finite or infinity values.
function plq_plot(plqf1, plqf2, x1, x5)
if(nargin < 2)
plqf2 = 0;
end
if(nargin < 3 | x1 == -Inf)
x1 = -5;
end
if(nargin < 4 | x5 == Inf)
x5 = 5;
end
x = linspace(x1,x5, 201);
... |
github | ylucet/CCA-master | gph_extendGph.m | .m | CCA-master/macros/plots/gph_extendGph.m | 543 | utf_8 | e086ecc88dacc9aca1bdab0fb5cddb40 | %extend the graph to boundary values by linear extrapolation
%only return the first 2 rows and discard the 3rd row
function G = gph_extendGph(g, rect)
if g(1,1) == g(1,2) %vertical line on left %ERROR HERE
G=[[g(1,1);rect(2)],g(1:2,:)];
else
G=[[rect(1); gph_yCoord(rect(1),g(1,1),g(2,1),g(1,2),g(2... |
github | ylucet/CCA-master | gph_yCoord.m | .m | CCA-master/macros/plots/gph_yCoord.m | 291 | utf_8 | 739e84ef71a3408dc304fa4908bb0a46 | %compute the y coordinate for the poin on the line
%going to (xi, yi) at x
function y = gph_yCoord(x, x1, y1, x2, y2)
if x == x1
%warning("yCoord: x == x1"); %warning message is removed to avoid warning
y=y1;
else
y = (y2-y1)/(x2-x1)* (x-x1) + y1;
end
end |
github | ylucet/CCA-master | plq_plotMultiple.m | .m | CCA-master/macros/plots/plq_plotMultiple.m | 1,156 | utf_8 | 3a907cc489ebcaf72b3002edd685d145 | %Plot mutiple PLQ functions
%x1, x5 can be finite or infinity values
function plq_plotMultiple(x1, x5, varargin)
if(nargin < 1 | x1 == false | x1 == -Inf)
x1 = Inf;
for i = 1:length(varargin)
f = varargin{i};
lb = max(1, min(find(f(:,4) ~= Inf)) -1);
x1 = min(x1, ... |
github | panji530/Robust-shape-interaction-matrix-master | hungarian.m | .m | Robust-shape-interaction-matrix-master/hungarian.m | 11,781 | utf_8 | 294996aeeca4dadfc427da4f81f8b99d | function [C,T]=hungarian(A)
%HUNGARIAN Solve the Assignment problem using the Hungarian method.
%
%[C,T]=hungarian(A)
%A - a square cost matrix.
%C - the optimal assignment.
%T - the cost of the optimal assignment.
%s.t. T = trace(A(C,:)) is minimized over all possible assignments.
% Adapted from the FORTRAN ... |
github | Vincentqyw/light-field-TB-master | ViewLightField.m | .m | light-field-TB-master/ViewLightField.m | 1,062 | utf_8 | 2f47d417127b5f68c9bc44bbbc3a43e5 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 2015.05.14 Jaesik Park
% 2017.10.15 Vincent Qin revised
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% function fn_ViewLightField
% input : 5D light field image structure (t,s,y,x,ch), single type pixel intensities.
funct... |
github | Vincentqyw/light-field-TB-master | LFCalRectifyLF.m | .m | light-field-TB-master/LFToolbox0.4/LFCalRectifyLF.m | 4,859 | utf_8 | 58ca494191153d4b172d9f8d2408ca25 | % LFCalRectifyLF - rectify a light field using a calibrated camera model, called as part of LFUtilDecodeLytroFolder
%
% Usage:
% [LF, RectOptions] = LFCalRectifyLF( LF, CalInfo, RectOptions )
% [LF, RectOptions] = LFCalRectifyLF( LF, CalInfo )
%
% This function is called by LFUtilDecodeLytroFolder to rectify a ... |
github | Vincentqyw/light-field-TB-master | LFWriteMetadata.m | .m | light-field-TB-master/LFToolbox0.4/LFWriteMetadata.m | 10,271 | utf_8 | 18ac683694e04562a3249c7226bdde52 | % LFWriteMetadata - saves variables to a file in JSON format
%
% Usage:
% LFWriteMetadata( JsonFileFname, DataToSave )
%
% This function saves data to a JSON file.
%
% Based on JSONlab by Qianqian Fang,
% http://www.mathworks.com.au/matlabcentral/fileexchange/33381-jsonlab-a-toolbox-to-encodedecode-json-files-in-m... |
github | Vincentqyw/light-field-TB-master | LFBuild4DFreqDualFan.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild4DFreqDualFan.m | 4,955 | utf_8 | b925c1d38066faa9f44d0c51b8c68d91 | % LFBuild4DFreqDualFan - construct a 4D dual-fan passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild4DFreqDualFan( LFSize, Slope, BW, FiltOptions )
% H = LFBuild4DFreqDualFan( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 4D, for which the pas... |
github | Vincentqyw/light-field-TB-master | LFBuild4DFreqHypercone.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild4DFreqHypercone.m | 4,501 | utf_8 | 256d28a026711e06809d334c23db0633 | % LFBuild4DFreqHypercone - construct a 4D hypercone passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild4DFreqHypercone( LFSize, Slope, BW, FiltOptions )
% H = LFBuild4DFreqHypercone( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 4D, for which ... |
github | Vincentqyw/light-field-TB-master | LFUtilProcessWhiteImages.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilProcessWhiteImages.m | 12,517 | utf_8 | 82b7183214df46d50702d31ad904317c | % LFUtilProcessWhiteImages - process a folder/tree of white images by fitting a grid model to each
%
% Usage:
%
% LFUtilProcessWhiteImages
% LFUtilProcessWhiteImages( WhiteImagesPath )
% LFUtilProcessWhiteImages( WhiteImagesPath, FileOptions, GridModelOptions )
% LFUtilProcessWhiteImages( WhiteImagesPat... |
github | Vincentqyw/light-field-TB-master | LFCalDispEstPoses.m | .m | light-field-TB-master/LFToolbox0.4/LFCalDispEstPoses.m | 2,604 | utf_8 | 1f7d8e57212bcbb143d2c597e59038f3 | % LFCalDispEstPoses - Visualize pose estimates associated with a calibration info file
%
% Usage:
% LFCalDispEstPoses( InputPath, CalOptions, DrawFrameSizeMult, BaseColour )
%
% Draws a set of frames, one for each camera pose, in the colour defined by BaseColour. All inputs
% except InputPath are optional. Pass an... |
github | Vincentqyw/light-field-TB-master | LFMatlabPathSetup.m | .m | light-field-TB-master/LFToolbox0.4/LFMatlabPathSetup.m | 629 | utf_8 | 09c19ebacb36d9e2d70336dd7f62bc9c | % LFMatlabPathSetup - convenience function to add the light field toolbox to matlab's path
%
% It may be convenient to add this to your startup.m file.
% Part of LF Toolbox v0.4 released 12-Feb-2015
% Copyright (c) 2013-2015 Donald G. Dansereau
function LFMatlabPathSetup
% Find the path to this script, and use it as... |
github | Vincentqyw/light-field-TB-master | LFReadLFP.m | .m | light-field-TB-master/LFToolbox0.4/LFReadLFP.m | 9,456 | utf_8 | 12a412c0c96c3bd388028f4eb975749f | % LFReadLFP - Load a lytro LFP / LFR file
%
% Usage:
% [LFP, ExtraSections] = LFReadLFP( Fname )
%
% The Lytro LFP is a container format and may contain one of several types of data. The file extension varies based on
% the source of the files, with exported files, on-camera files and image library files variousl... |
github | Vincentqyw/light-field-TB-master | LFBuild4DFreqHyperfan.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild4DFreqHyperfan.m | 4,676 | utf_8 | 2bec28d4e5b0d48494ee457844595957 | % LFBuild4DFreqHyperfan - construct a 4D hyperfan passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild4DFreqHyperfan( LFSize, Slope, BW, FiltOptions )
% H = LFBuild4DFreqHyperfan( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 4D, for which the ... |
github | Vincentqyw/light-field-TB-master | LFUtilProcessCalibrations.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilProcessCalibrations.m | 3,086 | utf_8 | b7ed374da00985b749186101dccbfc70 | % LFUtilProcessCalibrations - process a folder/tree of camera calibrations
%
% Usage:
%
% LFUtilProcessCalibrations
% LFUtilProcessCalibrations( CalibrationsPath )
% LFUtilProcessCalibrations( CalibrationsPath, FileOptions )
% LFUtilProcessCalibrations( [], FileOptions )
%
% All parameters are optional... |
github | Vincentqyw/light-field-TB-master | LFUtilExtractLFPThumbs.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilExtractLFPThumbs.m | 2,528 | utf_8 | bcf530be1d01e6c00268cf5bbf398fde | % LFUtilExtractLFPThumbs - extract thumbnails from LFP files and write to disk
%
% Usage:
%
% LFUtilExtractLFPThumbs
% LFUtilExtractLFPThumbs( InputPath )
%
% This extracts the thumbnail preview and focal stack images from LFR and LFP files, and is useful in providing a
% preview, e.g. when copying files direct... |
github | Vincentqyw/light-field-TB-master | LFFilt2DFFT.m | .m | light-field-TB-master/LFToolbox0.4/LFFilt2DFFT.m | 4,344 | utf_8 | 94c37a901f7a9a1271d469d23be351cc | % LFFilt2DFFT - Apply a 2D frequency-domain filter to a 4D light field using the FFT
%
% Usage:
%
% [LF, FiltOptions] = LFFilt2DFFT( LF, H, FiltDims, FiltOptions )
% LF = LFFilt2DFFT( LF, H, FiltDims )
%
%
% This filter works on 2D slices of the input light field, applying the 2D filter H to each in turn. It ... |
github | Vincentqyw/light-field-TB-master | LFBuild2DFreqLine.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild2DFreqLine.m | 4,431 | utf_8 | 0dcc452b6b957958b7243b285453790b | % LFBuild2DFreqLine - construct a 2D line passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild2DFreqLine( LFSize, Slope, BW, FiltOptions )
% H = LFBuild2DFreqLine( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 2D, for which the passband is a li... |
github | Vincentqyw/light-field-TB-master | LFColourCorrect.m | .m | light-field-TB-master/LFToolbox0.4/LFColourCorrect.m | 1,999 | utf_8 | 07c213f4b7fbcaa5ad2fae5e30c82edf | % LFColourCorrect - applies a colour correction matrix, balance vector, and gamma, called by LFUtilDecodeLytroFolder
%
% Usage:
% LF = LFColourCorrect( LF, ColMatrix, ColBalance, Gamma )
%
% This implementation deals with saturated input pixels by aggressively saturating output pixels.
%
% Inputs :
%
% LF : ... |
github | Vincentqyw/light-field-TB-master | LFBuild4DFreqPlane.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild4DFreqPlane.m | 4,768 | utf_8 | 44b35c86e926ed95961fbf34e0872ffb | % LFBuild4DFreqPlane - construct a 4D planar passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild4DFreqPlane( LFSize, Slope, BW, FiltOptions )
% H = LFBuild4DFreqPlane( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 4D, for which the passband is... |
github | Vincentqyw/light-field-TB-master | LFFindFilesRecursive.m | .m | light-field-TB-master/LFToolbox0.4/LFFindFilesRecursive.m | 3,789 | utf_8 | d7e26a587e0dd5460fb2f59371802d2e | % LFFindFilesRecursive - Recursively searches a folder for files matching one or more patterns
%
% Usage:
%
% [AllFiles, BasePath, FolderList, PerFolderFiles] = LFFindFilesRecursive( InputPath )
%
% Inputs:
%
% InputPath: the folder to recursively search
%
% Outputs:
%
% Allfiles : A list of all file... |
github | Vincentqyw/light-field-TB-master | LFDispMousePan.m | .m | light-field-TB-master/LFToolbox0.4/LFDispMousePan.m | 3,147 | utf_8 | 19664da990653623f36d25770af65dec | % LFDispMousePan - visualize a 4D light field using the mouse to pan through two dimensions
%
% Usage:
% FigureHandle = LFDispMousePan( LF )
% FigureHandle = LFDispMousePan( LF, ScaleFactor )
%
% A figure is set up for high-performance display, with the tag 'LFDisplay'. Subsequent calls to
% this function an... |
github | Vincentqyw/light-field-TB-master | LFReadGantryArray.m | .m | light-field-TB-master/LFToolbox0.4/LFReadGantryArray.m | 4,902 | utf_8 | 80dc406ff9c8008ff8aa0877a0fcdb0f | % LFReadGantryArray - load gantry-style light field, e.g. the Stanford light fields at lightfield.stanford.edu
%
% Usage:
%
% LF = LFReadGantryArray( InputPath, DecodeOptions )
%
% To use, download and unzip an image archive from the Stanford light field archive, and pass this function the path to
% the unzipped ... |
github | Vincentqyw/light-field-TB-master | LFRecenterIntrinsics.m | .m | light-field-TB-master/LFToolbox0.4/LFRecenterIntrinsics.m | 599 | utf_8 | 95e4073ad162508fcaf1705124873fc5 | % LFRecenterIntrinsics - Recenter a light field intrinsic matrix
%
% Usage:
% H = LFRecenterIntrinsics( H, LFSize )
%
% The recentering works by forcing the central sample in a light field of LFSize samples to
% correspond to the ray [s,t,u,v] = 0. Note that 1-based indexing is assumed in [i,j,k,l].
% Part of LF T... |
github | Vincentqyw/light-field-TB-master | LFCalDispRectIntrinsics.m | .m | light-field-TB-master/LFToolbox0.4/LFCalDispRectIntrinsics.m | 3,804 | utf_8 | 9881daba2d9060eef02a39e1c9ac81dd | % LFCalDispRectIntrinsics - Visualize sampling pattern resulting from a prescribed intrinsic matrix
%
% Usage:
% RectOptions = LFCalDispRectIntrinsics( LF, LFMetadata, RectOptions, PaintColour )
%
% During rectification, the matrix RectOptions.RectCamIntrinsicsH determines which subset of the light field gets
% sa... |
github | Vincentqyw/light-field-TB-master | LFFiltShiftSum.m | .m | light-field-TB-master/LFToolbox0.4/LFFiltShiftSum.m | 5,666 | utf_8 | 08be7f6f27c502a03f85f49912ae8183 | % LFFiltShiftSum - a spatial-domain depth-selective filter, with an effect similar to planar focus
%
% Usage:
%
% [ImgOut, FiltOptions, LF] = LFFiltShiftSum( LF, Slope, FiltOptions )
% ImgOut = LFFiltShiftSum( LF, Slope )
%
%
% This filter works by shifting all u,v slices of the light field to a common depth, ... |
github | Vincentqyw/light-field-TB-master | LFUtilUnpackLytroArchive.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilUnpackLytroArchive.m | 5,667 | utf_8 | 0af0d42eaef631b6f44fbfc81dd81b3e | % LFUtilUnpackLytroArchive - extract white images and other files from a multi-volume Lytro archive
%
% Usage:
% LFUtilUnpackLytroArchive
% LFUtilUnpackLytroArchive( InputPath )
% LFUtilUnpackLytroArchive( InputPath, FirstVolumeFname )
% LFUtilUnpackLytroArchive( [], FirstVolumeFname )
%
% This extract... |
github | Vincentqyw/light-field-TB-master | LFReadMetadata.m | .m | light-field-TB-master/LFToolbox0.4/LFReadMetadata.m | 14,953 | utf_8 | 98e987806e2f748e70644b1801d2bf95 | % LFReadMetadata - reads the metadata files in the JSON file format, from a file or a char buffer
%
% Usage:
%
% Data = LFReadMetadata( JsonFileFname )
%
% This function parses a JSON file and returns the data contained therein. If a char buffer is passed in, it's
% interpreted directly.
%
% Based on code from JS... |
github | Vincentqyw/light-field-TB-master | LFUtilDecodeLytroFolder.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilDecodeLytroFolder.m | 16,946 | utf_8 | 6867204a9b31f8807a667ab1fe4fa420 | % LFUtilDecodeLytroFolder - decode and optionally colour correct and rectify Lytro light fields
%
% Usage:
%
% LFUtilDecodeLytroFolder
% LFUtilDecodeLytroFolder( InputPath )
% LFUtilDecodeLytroFolder( InputPath, FileOptions, DecodeOptions, RectOptions )
% LFUtilDecodeLytroFolder( InputPath, [], [], Rect... |
github | Vincentqyw/light-field-TB-master | LFFilt4DFFT.m | .m | light-field-TB-master/LFToolbox0.4/LFFilt4DFFT.m | 3,622 | utf_8 | bb1d9662c072ab5fb38568d45f44bd28 | % LFFilt4DFFT -Applies a 4D frequency-domain filter using the FFT
%
% Usage:
%
% [LF, FiltOptions] = LFFilt4DFFT( LF, H, FiltOptions )
% LF = LFFilt4DFFT( LF, H )
%
%
% This filter works by taking the FFT of the input light field, multiplying by the provided magnitude response H, then
% calling the inverse FFT... |
github | Vincentqyw/light-field-TB-master | LFUtilCalLensletCam.m | .m | light-field-TB-master/LFToolbox0.4/LFUtilCalLensletCam.m | 8,438 | utf_8 | 56382b29c1b601dbae1ec2d6763a51b0 | % LFUtilCalLensletCam - calibrate a lenslet-based light field camera
%
% Usage:
%
% LFUtilCalLensletCam
% LFUtilCalLensletCam( Inputpath )
% LFUtilCalLensletCam( InputPath, CalOptions )
% LFUtilProcessCalibrations( [], CalOptions )
%
% All parameters are optional and take on default values as set in the... |
github | Vincentqyw/light-field-TB-master | LFHistEqualize.m | .m | light-field-TB-master/LFToolbox0.4/LFHistEqualize.m | 6,002 | utf_8 | aaaa0313c7b80ba9ccf5524a24026bdb | % LFHistEqualize - histogram-based contrast adjustment
%
% Usage:
%
% LF = LFHistEqualize( LF )
% [LF, LowerBound, UpperBound] = LFHistEqualize( LF, Cutoff_percent )
% LF = LFHistEqualize( LF, [], LowerBound, UpperBound )
% LF = LFHistEqualize(LF, Cutoff_percent, [], [], Precision)
%
% This function p... |
github | Vincentqyw/light-field-TB-master | LFReadRaw.m | .m | light-field-TB-master/LFToolbox0.4/LFReadRaw.m | 2,387 | utf_8 | f61af2a213353cf523d8d47f5fd665aa | % LFReadRaw - Reads 8, 10, 12 and 16-bit raw image files
%
% Usage:
%
% Img = LFReadRaw( Fname )
% Img = LFReadRaw( Fname, BitPacking, ImgSize )
% Img = LFReadRaw( Fname, [], ImgSize )
%
% There is no universal `RAW' file format. This function reads a few variants, including the 12-bit and 10-bit files
% ... |
github | Vincentqyw/light-field-TB-master | LFDispVidCirc.m | .m | light-field-TB-master/LFToolbox0.4/LFDispVidCirc.m | 3,251 | utf_8 | 7f29b601b697f1bf5daf1621b54fe7b0 | % LFDispVidCirc - visualize a 4D light field animating a circular path through two dimensions
%
% Usage:
%
% FigureHandle = LFDispVidCirc( LF )
% FigureHandle = LFDispVidCirc( LF, PathRadius_percent, FrameDelay )
% FigureHandle = LFDispVidCirc( LF, PathRadius_percent, FrameDelay, ScaleFactor )
% Figu... |
github | Vincentqyw/light-field-TB-master | LFDisp.m | .m | light-field-TB-master/LFToolbox0.4/LFDisp.m | 1,447 | utf_8 | e7dcaf88325fd23f136fac4a166709e5 | % LFDisp - Convenience function to display a 2D slice of a light field
%
% Usage:
% LFSlice = LFDispMousePan( LF )
% LFDispMousePan( LF )
%
%
% The centermost image is taken in s and t. Also works with 3D arrays of images. If an output argument is included, no
% display is generated, but the e... |
github | Vincentqyw/light-field-TB-master | LFBuild2DFreqFan.m | .m | light-field-TB-master/LFToolbox0.4/LFBuild2DFreqFan.m | 4,507 | utf_8 | d3bc64badf14c750b5f1f2a996936c1f | % LFBuild2DFreqFan - construct a 2D fan passband filter in the frequency domain
%
% Usage:
%
% [H, FiltOptions] = LFBuild2DFreqFan( LFSize, Slope1, Slope2, BW, FiltOptions )
% H = LFBuild2DFreqFan( LFSize, Slope, BW )
%
% This file constructs a real-valued magnitude response in 2D, for which the passband is... |
github | Vincentqyw/light-field-TB-master | LFDefaultIntrinsics.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFDefaultIntrinsics.m | 2,030 | utf_8 | 948ce39fff4f94ed954e090033778c04 | % LFDefaultIntrinsics - Initializes a set of intrinsics for use in rectifying light fields
%
% Usage:
%
% RectCamIntrinsicsH = LFDefaultIntrinsics( LFSize, CalInfo )
%
% This gets called by LFCalDispRectIntrinsics to set up a default set of intrinsics for rectification. Based on the
% calibration information and... |
github | Vincentqyw/light-field-TB-master | LFDefaultField.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFDefaultField.m | 1,979 | utf_8 | 485dfac0b4aba775cf4d1d20f537f0f7 | % LFDefaultField - Convenience function to set up structs with default field values
%
% Usage:
%
% ParentStruct = LFDefaultField( ParentStruct, FieldName, DefaultVal )
%
% This provides an elegant way to establish default field values in a struct. See LFDefaultValue for
% setting up non-struct variables with defa... |
github | Vincentqyw/light-field-TB-master | LFSign.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFSign.m | 225 | utf_8 | 901dea01bff401571d8125711feeffad | % LFSign - Like Matlab's sign, but never returns 0, treating 0 as positive
% Part of LF Toolbox v0.4 released 12-Feb-2015
% Copyright (c) 2013-2015 Donald G. Dansereau
function s = LFSign(i)
s = ones(size(i));
s(i<0) = -1; |
github | Vincentqyw/light-field-TB-master | LFRotz.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFRotz.m | 306 | utf_8 | 2a4fc216ff9e1b6b35762c010ebe50f2 | % LFRotz - simple 3D rotation matrix, rotation about z
%
% Usage:
% R = LFRotz( psi )
%
% Part of LF Toolbox v0.4 released 12-Feb-2015
% Copyright (c) 2013-2015 Donald G. Dansereau
function R = LFRotz(psi)
c = cos(psi);
s = sin(psi);
R = [ c, -s, 0; ...
s, c, 0; ...
0, 0, 1 ];
|
github | Vincentqyw/light-field-TB-master | LFHelperBuild4DFreq.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFHelperBuild4DFreq.m | 4,143 | utf_8 | 5cefe44f63c8fd80b66ad5e267298bff | % LFHelperBuild4DFreq - Helper function used to construct 4D frequency-domain filters
%
% Much of the complexity in constructing MD frequency-domain filters, especially around including aliased components and
% controlling the filter rolloff, is common between filter shapes. This function wraps much of this complexity... |
github | Vincentqyw/light-field-TB-master | LFCalInit.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFCalInit.m | 10,538 | utf_8 | 50b5d42f601852034d9bfaa26788439a | % LFCalInit - initialize calibration estimate, called by LFUtilCalLensletCam
%
% Usage:
% CalOptions = LFCalInit( InputPath, CalOptions )
% CalOptions = LFCalInit( InputPath )
%
% This function is called by LFUtilCalLensletCam to initialize a pose and camera model estimate
% given a set of extracted checkerboa... |
github | Vincentqyw/light-field-TB-master | LFHelperBuild2DFreq.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFHelperBuild2DFreq.m | 3,367 | utf_8 | 3cd16d8e0a260aa2447e46ea325a04f9 | % LFHelperBuild2DFreq - Helper function used to construct 2D frequency-domain filters
%
% Much of the complexity in constructing MD frequency-domain filters, especially around including aliased components and
% controlling the filter rolloff, is common between filter shapes. This function wraps much of this complexity... |
github | Vincentqyw/light-field-TB-master | LFFindLytroPartnerFile.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFFindLytroPartnerFile.m | 1,439 | utf_8 | a4f3d1519bad3b234bde99c00a97ea3d | % LFFindLytroPartnerFile - Finds metadata / raw data file partner for Lytro white images
%
% Usage:
%
% PartnerFilename = LFFindLytroPartnerFile( OrigFilename, PartnerFilenameExtension )
%
% The LF Reader tool prepends filenames extracted from LFP storage files, complicating .txt / .raw
% file association as the ... |
github | Vincentqyw/light-field-TB-master | LFVar2Struct.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFVar2Struct.m | 646 | utf_8 | 8e9d0eed0d9242fdf45c14ba302e05d2 | % LFVar2Struct - Convenience function to build a struct from a set of variables
%
% Usage:
% StructOut = LFVar2Struct( var1, var2, ... )
%
% Example:
% Apples = 3;
% Oranges = 4;
% FruitCount = LFVar2Struct( Apples, Oranges )
%
% Results in a struct FruitCount:
% FruitCount =
% ... |
github | Vincentqyw/light-field-TB-master | LFBuildLensletGridModel.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFBuildLensletGridModel.m | 9,749 | utf_8 | 77a704b9345494e7a5ab0bc07f763d10 | % LFBuildLensletGridModel - builds a lenslet grid model from a white image, called by LFUtilProcessWhiteImages
%
% Usage:
% [LensletGridModel, GridCoords] = LFBuildLensletGridModel( WhiteImg, GridModelOptions, DebugDisplay )
%
% Inputs:
% WhiteImg : path of an image taken through a diffuser, or of an e... |
github | Vincentqyw/light-field-TB-master | LFDefaultVal.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFDefaultVal.m | 1,291 | utf_8 | c246f7b5e263b013ced34d42170f53b4 | % LFDefaultVal - Convenience function to set up default parameter values
%
% Usage:
%
% Var = LFDefaultVal( Var, DefaultVal )
%
%
% This provides an elegant way to establish default parameter values. See LFDefaultField for setting
% up structs with default field values.
%
% Inputs:
%
% Var: string giving the ... |
github | Vincentqyw/light-field-TB-master | LFDispSetup.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFDispSetup.m | 2,717 | utf_8 | 018642a726ed8feb41058f29f9ffeb14 | % LFDispSetup - helper function used to set up a light field display
%
% Usage:
%
% [ImageHandle, FigureHandle] = LFDispSetup( InitialFrame )
% [ImageHandle, FigureHandle] = LFDispSetup( InitialFrame, ScaleFactor )
%
%
% This sets up a figure for LFDispMousePan and LFDispVidCirc. The figure is configured f... |
github | Vincentqyw/light-field-TB-master | LFGatherCamInfo.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFGatherCamInfo.m | 2,778 | utf_8 | c0acfa7e282c05682ab4f98ab740a59c | % LFGatherCamInfo - collect metadata from a folder of processed white images or calibrations
%
% Usage:
%
% CamInfo = LFGatherCamInfo( FilePath, FilenamePattern )
%
%
% This function is designed to work with one of two sources of information: a folder of Lytro white
% images, as extracted from the calibration dat... |
github | Vincentqyw/light-field-TB-master | LFToolboxVersion.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFToolboxVersion.m | 252 | utf_8 | d37c67edd0424685c2530c25195c3826 | % LFToolboxVersion - returns a string describing the current toolbox version
% Part of LF Toolbox v0.4 released 12-Feb-2015
% Copyright (c) 2013-2015 Donald G. Dansereau
function VersionStr = LFToolboxVersion
VersionStr = 'v0.4 released 12-Feb-2015'; |
github | Vincentqyw/light-field-TB-master | LFStruct2Var.m | .m | light-field-TB-master/LFToolbox0.4/SupportFunctions/LFStruct2Var.m | 871 | utf_8 | bd1821a5700012dfce0f79c4d5dd8ab0 | % LFStruct2Var - Convenience function to break a subset of variables out of a struct
%
% Usage:
% [var1, var2, ...] = LFStruct2Var( StructIn, 'var1', 'var2', ... )
%
% This would ideally exclude the named variables in the argument list, but there was no elegant way
% to do this given the absence of an `outputname'... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.