OpenCV 3 image and video processing with Python The core : Image - load, convert, and save How to use ffmpeg to create video from images free#Sponsor Open Source development activities and free contents for everyone. EinsteinSlideShow.mp4: output video file name.Using the options -pix_fmt yuv420p or -vf format=yuv420p will maximize compatibility.". Technically this is preferred, but unfortunately almost all video players, excluding FFmpeg based players, and many online video services only support the YUV color space with 4:2:0 chroma subsampling. "By default when using libx264, and depending on your input, ffmpeg will attempt to avoid color subsampling. When given an array of an image in the Y'UV420p format, all the Y' values come first, followed by all the U values, followed finally by all the V values." - wiki. The reason for this is that by grouping the U and V values together, the image becomes much more compressible. "Y'UV420p is a planar format, meaning that the Y', U, and V values are grouped together instead of interspersed.
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