File size: 999 Bytes
d4035c1 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 |
function [newannotation,img,jo] = LMgetvideoframe(annotation, f, HOMEVIDEOS)
%
% Returns the annotation for frame number 'f' as if it is was the
% annotation of a single image.
newannotation = annotation;
jo = [];
img = [];
if isfield(annotation, 'object')
newannotation = rmfield(newannotation, 'object');
Nobjects = length(annotation.object);
m = 0;
for n = 1:Nobjects
[X,Y,t] = getLMpolygon(annotation.object(n).polygon);
i = find(t==f);
if ~isempty(i)
m = m+1;
obj = annotation.object(n);
obj = rmfield(obj, 'polygon');
obj.polygon.x = X(:,i);
obj.polygon.y = Y(:,i);
obj.polygon.t = t(i);
newannotation.object(m) = obj;
jo(m) = n;
end
end
end
if nargout > 1 && nargin == 3
videofilename = fullfile(HOMEVIDEOS, annotation.folder, annotation.filename);
videoobj = mmreader(videofilename);
img = read(videoobj, f+1);
end
|