id stringlengths 16 145 | text stringlengths 1 179k | title stringclasses 1
value |
|---|---|---|
picamera_basic_advanced_recipes/18461_293_0.txt | Sorry, something went wrong. | |
picamera_basic_advanced_recipes/picamera_advanced_recipes_8_0.txt | ## 4.8. Unencoded video capture ¶
Just as unencoded RGB data can be captured as images, the Pi’s camera module
can also capture an unencoded stream of RGB (or YUV) video data. Combining
this with the methods presented in Custom outputs (via the classes from [ `
picamera.array ` ](api_array.html#module-picamera.ar... | |
picamera_basic_advanced_recipes/sshx11forwardingprob_26_0.txt | Old 01-16-2020, 12:37 AM #4
Warrenn56
LQ Newbie | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_57_0.txt | [ 
](/users/414443/annamp/) [ AnnaMP ](/users/414443/annamp/) ( 2019-01-24
07:44:03 -0600 ) edit | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_94_0.txt | Copyright [ OpenCV foundation ](http://www.opencv.org) , 2012-2018. Content on
this site is licensed under a [ Creative Commons Attribution Share Alike 3.0
](http://creativecommons.org/licenses/by-sa/3.0/legalcode) license. | |
picamera_basic_advanced_recipes/18461_134_0.txt | **[ cassidylinhares ](/cassidylinhares) ** commented Nov 6, 2020 | |
picamera_basic_advanced_recipes/18461_175_0.txt | > To help others, I found that my .bashrc needed to contain the following:
> ` export DISPLAY=:0.0 `
> previously, it said
> ` export DISPLAY=localhost:0.0 ` | |
picamera_basic_advanced_recipes/243406_3_0.txt | [ opencv ](https://forums.developer.nvidia.com/tag/opencv) , [ cuda
](https://forums.developer.nvidia.com/tag/cuda) , [ vpi
](https://forums.developer.nvidia.com/tag/vpi) | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_42_0.txt | can you add to your question print(cv2.getBuildInformation()) | |
picamera_basic_advanced_recipes/18461_230_0.txt | For what it's worth, I'm using ` xvfb-run -a <my program> ` . | |
picamera_basic_advanced_recipes/18461_372_0.txt | None yet | |
picamera_basic_advanced_recipes/18461_105_0.txt | --- | |
picamera_basic_advanced_recipes/picamera_advanced_recipes_17_0.txt | ## 4.17. Using a flash with the camera ¶
The Pi’s camera module includes an LED flash driver which can be used to
illuminate a scene upon capture. The flash driver has two configurable GPIO
pins:
* one for connection to an LED based flash (xenon flashes won’t work with the camera module due to it having a [ rolli... | |
picamera_basic_advanced_recipes/18461_59_0.txt | [ category: 3rdparty ](/opencv/opencv/labels/category%3A%203rdparty) [
incomplete ](/opencv/opencv/labels/incomplete) [ invalid
](/opencv/opencv/labels/invalid) [ question (invalid tracker)
](/opencv/opencv/labels/question%20%28invalid%20tracker%29) ask questions and
other "no action" items here: https://forum.opencv... | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_91_0.txt | [ OpenCL on OSX ](/question/15697/opencl-on-osx/) | |
picamera_basic_advanced_recipes/18461_271_0.txt | **[ HedoesnotDICE ](/HedoesnotDICE) ** commented Jun 26, 2022 | |
picamera_basic_advanced_recipes/18461_107_0.txt | Sorry, something went wrong. | |
picamera_basic_advanced_recipes/18461_245_0.txt | [ 
](/jbasement) | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_84_0.txt | [ cmake install_name_tool absolute path for library on Mac OSX
](/question/4134/cmake-install_name_tool-absolute-path-for-library-on-mac-
osx/) | |
picamera_basic_advanced_recipes/18461_344_0.txt | **[ anvinder ](/anvinder) ** commented May 25, 2023 | |
picamera_basic_advanced_recipes/18461_355_0.txt | All reactions | |
picamera_basic_advanced_recipes/18461_138_0.txt | All reactions | |
picamera_basic_advanced_recipes/18461_244_0.txt | Sorry, something went wrong. | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_6_0.txt | [ ALL ](/questions/scope:all/sort:activity-desc/page:1/) [ UNANSWERED
](/questions/scope:unanswered/sort:answers-asc/page:1/) | |
picamera_basic_advanced_recipes/243406_25_0.txt | If you link the device with ssh, please add the ` -X ` flag to allow window
forwarding.
Ex, | |
picamera_basic_advanced_recipes/18461_261_0.txt | if you're using openvino official docker for ubuntu you could follow those 2
steps: | |
picamera_basic_advanced_recipes/18461_229_0.txt | **[ reunanen ](/reunanen) ** commented Sep 30, 2021 | |
picamera_basic_advanced_recipes/18461_37_0.txt | [ Sign in
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picamera_basic_advanced_recipes/18461_320_0.txt | --- | |
picamera_basic_advanced_recipes/18461_101_0.txt | Copy link | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_86_0.txt | [ Regarding imshow (opencv compiled with opengl support)
](/question/7916/regarding-imshow-opencv-compiled-with-opengl-support/) | |
picamera_basic_advanced_recipes/18461_205_0.txt | ### | |
picamera_basic_advanced_recipes/18461_84_0.txt | Copy link | |
picamera_basic_advanced_recipes/18461_200_0.txt | --- | |
picamera_basic_advanced_recipes/243406_38_0.txt | Powered by [ Discourse ](https://www.discourse.org) , best viewed with
JavaScript enabled | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_55_0.txt | [ 
](/users/8129/lberger/) [ LBerger ](/users/8129/lberger/) ( 2019-01-24
07:27:55 -0600 ) edit | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_14_0.txt | [ 
](/users/414443/annamp/) | |
picamera_basic_advanced_recipes/18461_12_0.txt | By Solution | |
picamera_basic_advanced_recipes/picamera_basic_recipes_14_1.txt | screen") , they can be used to construct simple user
interfaces.
New in version 1.8.
| |
picamera_basic_advanced_recipes/243406_13_0.txt | [ AastaLLL ](https://forums.developer.nvidia.com/u/AastaLLL) February 20,
2023, 5:13am 10 | |
picamera_basic_advanced_recipes/18461_173_0.txt | ### | |
picamera_basic_advanced_recipes/picamera_advanced_recipes_3_2.txt | PiCamera.raw_format")
attribute is now deprecated, as is the ` 'raw' ` format specification for the
[ ` capture() ` ](api_camera.html#picamera.PiCamera.capture
"picamera.PiCamera.capture") method. Simply use the ` 'yuv' ` format instead,
as shown in the code above.
Changed in version 1.5: Added note about new [ ` ... | |
picamera_basic_advanced_recipes/sshx11forwardingprob_11_0.txt |
Registered: Dec 2019
Posts: 2 | |
picamera_basic_advanced_recipes/sshx11forwardingprob_36_0.txt |
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picamera_basic_advanced_recipes/243406_17_0.txt | [ VPI - Vision Programming Interface: 2D Image Convolution (nvidia.com)
](https://docs.nvidia.com/vpi/1.1/sample_conv2d.html) ,
it just the sample program, i just add imshow() in the line 151 and
#include<opencv2/highgui.hpp>. | |
picamera_basic_advanced_recipes/243406_24_0.txt | cv::imshow works well in our environment. | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_99_0.txt | [ none ](/questions/scope:all/sort:activity-desc/tags:none/page:1/) × | |
picamera_basic_advanced_recipes/18461_370_0.txt | [ category: 3rdparty ](/opencv/opencv/labels/category%3A%203rdparty) [
incomplete ](/opencv/opencv/labels/incomplete) [ invalid
](/opencv/opencv/labels/invalid) [ question (invalid tracker)
](/opencv/opencv/labels/question%20%28invalid%20tracker%29) ask questions and
other "no action" items here: https://forum.opencv... | |
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picamera_basic_advanced_recipes/18461_297_0.txt | **[ liuzihaode ](/liuzihaode) ** commented Oct 17, 2022 | |
picamera_basic_advanced_recipes/18461_91_0.txt | [
](/Namburger) | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_69_0.txt | add a comment | |
picamera_basic_advanced_recipes/18461_285_0.txt | [
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picamera_basic_advanced_recipes/18461_104_0.txt | 嘤嘤嘤~ | |
picamera_basic_advanced_recipes/picamera_advanced_recipes_5_1.txt | return len(s)
with picamera.PiCamera() as camera:
camera.resolution = (640, 480)
camera.framerate = 30
camera.start_recording(
# Throw away the video data, but make sure we're using H.264
'/dev/null', format='h264',
# Record motion data to our cus... | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_83_0.txt | ## Related questions | |
picamera_basic_advanced_recipes/18461_48_0.txt | [ Sign up for GitHub
](/signup?return_to=%2Fopencv%2Fopencv%2Fissues%2Fnew%2Fchoose) | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_77_0.txt | 1 follower | |
picamera_basic_advanced_recipes/picamera_basic_recipes_12_0.txt | ## 3.12. Recording to a circular stream ¶
This is similar to Recording video to a stream but uses a special kind of
in-memory stream provided by the picamera library. The [ ` PiCameraCircularIO
` ](api_streams.html#picamera.PiCameraCircularIO
"picamera.PiCameraCircularIO") class implements a [ ring buffer
](https:... | |
picamera_basic_advanced_recipes/18461_61_0.txt | [
](/Namburger) | |
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picamera_basic_advanced_recipes/18461_131_0.txt | [
](/cassidylinhares) | |
picamera_basic_advanced_recipes/18461_167_0.txt | 👍 1 ssepac reacted with thumbs up emoji 🚀 1 ssepac reacted with rocket
emoji | |
picamera_basic_advanced_recipes/picamera_advanced_recipes_14_0.txt | ## 4.14. Splitting to/from a circular stream ¶
This example builds on the one in [ Recording to a circular stream
](recipes1.html#circular-record1) and the one in Capturing images whilst
recording to demonstrate the beginnings of a security application. As before,
a [ ` PiCameraCircularIO ` ](api_streams.html#pic... | |
picamera_basic_advanced_recipes/18461_54_0.txt | [ Namburger ](/Namburger) opened this issue Sep 29, 2020 · 29 comments | |
picamera_basic_advanced_recipes/18461_41_0.txt | [ opencv ](/opencv) / **[ opencv ](/opencv/opencv) ** Public | |
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picamera_basic_advanced_recipes/243406_23_0.txt | Hi, | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_7_0.txt | | [ Ask Your Question ](/questions/ask/)
---|---|---|--- | |
picamera_basic_advanced_recipes/sshx11forwardingprob_31_0.txt | img=cv2.imread('image.jpg',1)
#instead of using:
#cv2.imshow('image', img)
#cv2.waitKey(0) | |
picamera_basic_advanced_recipes/243406_36_0.txt | This topic was automatically closed 14 days after the last reply. New replies
are no longer allowed. | |
picamera_basic_advanced_recipes/18461_251_0.txt | --- | |
picamera_basic_advanced_recipes/18461_58_0.txt | Labels | |
picamera_basic_advanced_recipes/18461_8_0.txt | * [ All features ](https://github.com/features)
* [ Documentation ](https://docs.github.com)
* [ GitHub Skills ](https://skills.github.com)
* [ Blog ](https://github.blog) | |
picamera_basic_advanced_recipes/18461_215_0.txt | Copy link | |
picamera_basic_advanced_recipes/18461_183_0.txt | Copy link | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_54_0.txt | It seems you build yourself opencv. I don't understand I'm using 'Python3.6,
on macOS (Mojave), cv2 v.4.0.1' but in build I can read Interpreter:
/usr/local/opt/python/bin/python3 (ver 3.7.2) | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_50_0.txt | [ 
](/users/414443/annamp/) [ AnnaMP ](/users/414443/annamp/) ( 2019-01-24
07:08:08 -0600 ) edit | |
picamera_basic_advanced_recipes/18461_19_0.txt | Repositories | |
picamera_basic_advanced_recipes/18461_231_0.txt | --- | |
picamera_basic_advanced_recipes/18461_14_0.txt | Resources | |
picamera_basic_advanced_recipes/18461_368_0.txt | No one assigned | |
picamera_basic_advanced_recipes/picamera_basic_recipes_4_0.txt | ## 3.4. Capturing resized images ¶
Sometimes, particularly in scripts which will perform some sort of analysis or
processing on images, you may wish to capture smaller images than the current
resolution of the camera. Although such resizing can be performed using
libraries like PIL or OpenCV, it is considerably more... | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_59_0.txt | [ 
](/users/8129/lberger/) [ LBerger ](/users/8129/lberger/) ( 2019-01-24
07:49:38 -0600 ) edit | |
picamera_basic_advanced_recipes/18461_67_0.txt | ##### Detailed description | |
picamera_basic_advanced_recipes/18461_34_0.txt | Query | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_34_0.txt | ## Comments | |
picamera_basic_advanced_recipes/18461_60_0.txt | ## Comments | |
picamera_basic_advanced_recipes/18461_119_0.txt | ### | |
picamera_basic_advanced_recipes/18461_152_0.txt | **[ n-gineer ](/n-gineer) ** commented Dec 23, 2020 | |
picamera_basic_advanced_recipes/243406_14_0.txt | Hi, | |
picamera_basic_advanced_recipes/18461_265_0.txt | --- | |
picamera_basic_advanced_recipes/18461_204_0.txt | Copy link | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_41_0.txt | Does it work in C++? | |
picamera_basic_advanced_recipes/18461_278_0.txt | Copy link | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_70_0.txt | ## Links | |
picamera_basic_advanced_recipes/18461_352_0.txt | **[ Nandu3219 ](/Nandu3219) ** commented Aug 10, 2023 | |
picamera_basic_advanced_recipes/imshowpythonmacosnot_37_0.txt |
[ 
](/users/8129/lberger/) [ LBerger ](/users/8129/lberger/) ( 2019-01-24
01:55:37 -0600 ) edit | |
picamera_basic_advanced_recipes/18461_295_0.txt | Copy link |
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