Hi I am developing an application for Jetson Agx Xavier JP 4.6.2.
I cannot provide you with code, but the pipeline inside the code is the following →
multifilesrc location=1695891500102_0_rgb.jpg caps=“image/jpeg, width=2448, height=2048, framerate=1/1” ! nvjpegdec ! ‘video/x-raw(memory:NVMM),format=I420,width=2448,height=2048’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA,width=2448,height=2048,framerate=1/1' ! appsink
Where I get the buffer and see that the RGBA image is significantly different.
I am sending the original image and the output of the pipeline in a zip, so there is no compression.
It get’s interesting when I start using videoconvert for I420→RGBA, because the quality is significantly better. The following is example pipeline.
gst-launch-1.0 -v multifilesrc location=<original_image>.jpg caps=“image/jpeg, width=2448, height=2048, framerate=1/1” ! nvjpegdec ! ‘video/x-raw,format=I420,width=2448,height=2048’ ! videoconvert ! ‘video/x-raw,format=RGBA,width=2448,height=2048’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA,width=2448,height=2048,framerate=1/1’ ! nvvidconv ! ‘video/x-raw,format=I420,width=2448,height=2048,colorimetry=bt601,range=full’ ! jpegenc quality=95 ! filesink location=output.jpg`
I know for sure that the problem is related due to the fact that I420 and NV12 are clipping the color space between 16-235 and (U and V) from 16 to 240. But I am not sure how to fix it using nvvidconv.
How can I set it to use full-range YUV.
And before anyone asks. No I cannot update the Jetpack.
TheColoringProblem.zip (9.8 MB)