Legacy ImageMagick Discussions Archive

anthony wrote:

rpgomes wrote:I used wildcards on input files and d% option on output.
[...]
Convert does not have the ability to use say '%s' to specify the original basename
of the image
[...]

+1 this would be very useful to use with wildcards

fmw42 wrote:I think the default is the units in your input image.

ok, that makes sense, too.

The fact that the channel image has color means it is NOT a channel image - It was not separated from the original!!!! what you say makes 100% sense to me. but I just did it again with the same result. convert test_black_grey_blue.png -colorspace cmyk -separate test_black_grey_blue_cmyk_%d.jpg am I ...

ucmlamb wrote:[...]
Anyway I got it working as I wanted it to work using the following:

convert Myfile.bmp -density 300x300 -units pixelsperinch Myfile.tif
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+1 this helped me too

(should it not be the default?)

It works for me. I get four images numbered 0 .. 3 the '3' is the black image. I had forgotten to upload the test image, did now. are you sure it really is the black image and not something else? my #3 looks like this: http://qr-code-scanner.com/test_black_grey_blue_cmyk_3.jpg it says only "blue ...

fmw42 wrote:Cannot get to your link at http://qr-code-scanner.com/test_black_grey_blue.png

convert test_black_grey_blue.png -colorspace cmyk -separated test_bgb_%d.jpg

that should be -separate not -separated

thanks, corrected.

First: I really dig IM! Powerful tool! Having big trouble with this issue: With this command I would expect all image information separated to CMYK channels: convert test_black_grey_blue.png -colorspace cmyk -separate test_bgb_%d.jpg The result is four images but the black channel is different from ...