This could be the problem. I will try the upgrade.snibgo wrote:I have a vague memory that IM, a long time ago, confused CMYK with CMY. It isn't populating your K channel, and it should. I suggest you upgrade.
Thanks!
Search found 3 matches
- 2013-01-24T04:23:12-07:00
- Forum: Users
- Topic: How to produce plain black cmyk
- Replies: 5
- Views: 5764
Re: How to produce plain black cmyk
Thanks!
- 2013-01-24T04:09:15-07:00
- Forum: Users
- Topic: How to produce plain black cmyk
- Replies: 5
- Views: 5764
Re: How to produce plain black cmyk
My results are different indeed: $ convert 1219-1054.jpg -colorspace cmyk 1219_c.tiff $ identify -verbose 1219_c.tiff Channel statistics: Cyan: min: 0 (0) max: 255 (1) mean: 135.364 (0.53084) standard deviation: 69.0691 (0.270859) kurtosis: -1.25183 skewness: -0.338258 Magenta: min: 0 (0) max: 255 ...
- 2013-01-24T02:49:00-07:00
- Forum: Users
- Topic: How to produce plain black cmyk
- Replies: 5
- Views: 5764
How to produce plain black cmyk
Dear all, Short question: how to produce a plain black CMYK grayscale image in ImageMagick? Long story: I have a grayscale image and I want to convert it to a plain black CMYK file i.e. only black channel is nonzero. However, using convert 1219-1054.jpg -colorspace CMYK 0103_cmyk_matrix.tif produces ...