Search found 2 matches
- 2012-04-30T00:21:08-07:00
- Forum: Users
- Topic: Alpha Channel Extract of Non-Alpha PNG
- Replies: 7
- Views: 13847
Re: Alpha Channel Extract of Non-Alpha PNG
Thank you for your quick help. -alpha extract does the job
- 2012-04-29T08:48:06-07:00
- Forum: Users
- Topic: Alpha Channel Extract of Non-Alpha PNG
- Replies: 7
- Views: 13847
Alpha Channel Extract of Non-Alpha PNG
I am extracting the alpha channel from PNGs with the following command (ver 6.7.6-5 on Win7 64 bit): convert Alpha.png -channel Alpha -level 50% -separate "Alpha_mask.bmp" If the PNG contains an alpha channel it is extracted correctly, with white pixels where the mask is transparent (and the ...