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Help required with raspberry pi 3 and processing
i am creating a project that requires image capturing from pi camera in processing. i know that normal video library doesn't work in raspberry so i downloaded opengl video library but it uses p2d or p3d. now the problem is that whenever i am using p2d or p3d, sketch output is a black screen it does not show anything but the program is running correctly (i know this because i m printing mousex value on change in console) i m out of options thanks in advance
16 Réponses
+ 14
did you google it?
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yes, but couldn't find anything
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use stackeoverflow.
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hmmm
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For use with the Raspberry Pi camera, make sure the camera is
enabled in the Raspberry Pi Configuration tool and add the line
"bcm2835_v4l2" (without quotation marks) to the file
/etc/modules. After a restart you should be able to see the
camera device as /dev/video0.
quoted from the simpleCapture.pde code found at:
https://github.com/gohai/processing-glvideo/blob/master/examples/SimpleCapture/SimpleCapture.pde
+ 1
have a look at this discussion it looks like your issue:
https://github.com/processing/processing/issues/4818
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apart from simple sketches, have you been able to run the example provided with the openGL video library?
did the camera get detected?
was the image black?
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here are the installation instructions for OpenGL video playback
https://github.com/gohai/processing-glvideo/blob/master/README.md
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btw i had a similar issue on ubuntu due to the different version of GStreamer.
replacing GStreamer fixed it.
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check below link how to captures image using pi camera
https://youtu.be/3KlIV8y2oiM
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i am getting the image using python script
but not with processing
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I already did that but its not working. The issue is not with the camera, issue is with P3D/P2D.
If i run a normal processing sketch it runs successfully but if i add p3d/p2d to that same sketch the output screen becomes black.
the sketch is running correctly, only the output screen is black
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the example specifies p2d.
if you use p3d you should draw the image from the video stream as a background.
you must save the current frame in a PImage object and use the background function to display it
background(yourPImageFrame);
Make sure to have the image size matching your sketch size.
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if a create a simple sketch which draws a simple rectangle on the screen it runs ok but if i add p2d/p3d to that sketch then output screen becomes black
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i cant use the opengl because it needs p2d/p3d
and if i use that then the output is black
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thanks buddy
i will try them tomorrow and see if that works