Search found 2 matches
- 2014-07-17T06:50:38-07:00
- Forum: Bugs
- Topic: PSNR is different for the same images, different formats
- Replies: 4
- Views: 5270
Re: PSNR is different for the same images, different formats
I got some more debug info: This is due to the 1 bit alpha channel in png files. GetMeanSquaredDistortion@compare.c might be calculated wrongly in some way. When I commented out the calculations for alpha channel as well as harcoded distortion[CompositeChannels]/=(double) GetNumberChannels(image ...
- 2014-07-17T03:28:14-07:00
- Forum: Bugs
- Topic: PSNR is different for the same images, different formats
- Replies: 4
- Views: 5270
PSNR is different for the same images, different formats
OS : Windows 8 Enterprise Magick Version : 6.8.9 Bug : When calculating PSNR between two images, the PSNR differs depending on the format of the files (but the same content). Steps to reproduce : Download reference images: http://www.filedropper.com/refimages UTIL_DB_compare_.exe -metric PSNR ...