On Mon, Feb 09, 2015 at 17:56:06 -0800, Elliott Balsley wrote: > Here is a sample TIFF: > https://drive.google.com/file/d/0B52QuT8oHvtZZkhSUkswUDhJSlU/view?usp=sharing
I personally can't see the artifact. I had to subtract or XOR the two images to identify the changes. That said: ffmpeg with -qscale 0, 1, 2 creates (identical) images which have approximately the same size as a conversion using ImageMagick with libjpeg (albeit very old) with a "quality" setting of around 89%, which is not generally considered "very good". YMMV I'm trying to say: At first glance, ffmpeg either compresses much more effectively (which I doubt) or doesn't use a high enough quality setting. Whether that is intended, and whether the various qscale settings should result in identical files, I can't say. Moritz _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user
