Math Transforms of Edge detect, sharpening, ...

Ask for help and post your question on how to use XnView Classic.

Moderators: XnTriq, xnview

Post Reply
dantruong02
Posts: 1
Joined: Thu Jan 11, 2018 6:09 am

Math Transforms of Edge detect, sharpening, ...

Post by dantruong02 » Thu Jan 11, 2018 6:12 am

Thanks for making a great software. Is there any documentation of the mathematical kernels (with subsequent normalizations) for edge detect, sharpening, emboss operations?? I get excellent results in the preview window but not the actual image, so I think the mathematical transform on the preview image may be different (lower resolution transform), and it would be nice to know more about the math so I can get it to work on the actual image. Thanks alot.

User avatar
xnview
Author of XnView
Posts: 29888
Joined: Mon Oct 13, 2003 7:31 am
Location: France
Contact:

Re: Math Transforms of Edge detect, sharpening, ...

Post by xnview » Thu Jan 11, 2018 7:11 am

you can find some kernel in udf-def.dat file
Result is different between small preview and original file
Pierre.

Post Reply