[FFmpeg-user] Image Conversion TIFF > JPEG with yuv422 chroma subsampling

[Andrea Rastelli]

Hi,

I'm trying to convert a TIFF image sequence into JPEG (sequence) for 
preliminary video analysis, and I need to save the JPEG using yuv444 or 
yuv442.. but all I have achieved by now is the simple TIFF to JPEG 
conversion with some setup in the quality setting (that still produce 
blocky images, even with -q 1 or -q:v 1)..

Also, the only codec that works is the MJPEG, any other codec produces 
unreadable images or extremely slow-to-process images (libopenjpeg)..

Any help will be appreciated.

Thanks