Search found 4 matches
- Tue Nov 22, 2011 4:07 pm
- Forum: NConvert
- Topic: jpeg quality bug (png -> jpeg, tiff -> jpeg)
- Replies: 6
- Views: 2130
Re: jpeg quality bug (png -> jpeg, tiff -> jpeg)
Pierre, is there a way to turn subsampling off completely?
- Mon Nov 21, 2011 2:38 pm
- Forum: NConvert
- Topic: jpeg quality bug (png -> jpeg, tiff -> jpeg)
- Replies: 6
- Views: 2130
Re: jpeg quality bug (png -> jpeg, tiff -> jpeg)
Thanks for the response, Pierre! It was indeed the subsampling.
- Fri Nov 18, 2011 4:17 pm
- Forum: NConvert
- Topic: jpeg quality bug (png -> jpeg, tiff -> jpeg)
- Replies: 6
- Views: 2130
Re: jpeg quality bug (png -> jpeg, tiff -> jpeg)
pierre,
thx for the response. after looking into it a bit further, it seems like it was still converting it into a .png without the -out jpeg flag, even though i specified the jpeg extension
however, there are still issues with the jpeg step. they are rather drastic for this particular image. see ...
thx for the response. after looking into it a bit further, it seems like it was still converting it into a .png without the -out jpeg flag, even though i specified the jpeg extension
however, there are still issues with the jpeg step. they are rather drastic for this particular image. see ...
- Thu Nov 17, 2011 6:14 pm
- Forum: NConvert
- Topic: jpeg quality bug (png -> jpeg, tiff -> jpeg)
- Replies: 6
- Views: 2130
jpeg quality bug (png -> jpeg, tiff -> jpeg)
In cetain cases, the "-out jpeg" option seems to override the quality option.
When converting png -> jpeg or tiff -> jpeg with "-out jpeg" and "-q 100", nconvert will produce a low quality image with clear jpeg artifacts.
When converting png -> jpeg or tiff -> jpeg with "-out jpeg" and "-q 100", nconvert will produce a low quality image with clear jpeg artifacts.