Hello,

I am trying the new JPEG encoder in the 2013 release, and have noticed something odd.

When I encode YUV420 material, the JPEG image seems to have lower contrast and be brighter than the source material.

This seems like a colorspace issue, but I'm not sure if there is an option to change the behavior. [I don't want to re-color my raw source]

I am attaching a Big Buck Bunny (BBB) YUV420 raw, and the resulting JPEG output from sample_encoder.

It is tempting to point the fingers at my viewers, but the original BBB video my raw YV12 seem consistent, the raw was viewed using the '7yuv' tool.

I used the following command to go from raw to .jpg  :  sample_encode.exe jpeg -i bbbf.1080.yuv -o j.jpg -w 1920 -h 1080

Any help is appreciated.

I cannot seem to attach .yuv files, so here is Dropbox links:

https://www.dropbox.com/s/n6u9gqp3uj9fwxw/bbbf.1080.jpg

https://www.dropbox.com/s/1w7c7flt3hs5n7a/bbbf.1080.yuv

If desired, the original video is here: http://www.bigbuckbunny.org/index.php/download/

Frame #1000, about 39 seconds in was used.

Cameron