[FFmpeg-user] Create high quality JPEGs
elliottbalsley at gmail.com
Tue Feb 10 19:42:53 CET 2015
Could you test again with -qmin 1 -qscale 1 ?
I tested again with those settings, and the result is better, but still not as good as a conversion by OS X Preview. I’m only observing visually, using Preview.app. The blockiness is especially noticeable on the black shirt chest area. Here are example files. The one created by FFmpeg with qmin 1 is 609KB. The one created by Preview is 1.9MB, and is nearly identical to the TIFF.
Original TIFF: https://drive.google.com/file/d/0B52QuT8oHvtZZkhSUkswUDhJSlU/view?usp=sharing
More information about the ffmpeg-user