generating draw-rectangle image blank image in cmyk

[jedierikb]

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convert -set units PixelsPerInch -density 300 -size 1200x1800 xc:#fff -fill xc:#f00 -draw 'rectangle 0 0 100 100' -black-point-compensation -intent Relative -profile USWebCoatedSWOP.icc test.tiff

The following code is producing an image which, when opened in photoshop, presents me with a warning "The embedded ICC profile cannot be used because the ICC profile is invalid. Ignoring the profile." How to properly embed the profile in this case?

And in this case,

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convert -set units PixelsPerInch -density 300 -size 1200x1800 xc:#fff -black-point-compensation -intent Relative -profile USWebCoatedSWOP.icc blank.tiff

In this case, I am successfully generating a blank image, but it is not cmyk... (rather, according to photoshop, 'bitmap').

[jedierikb]

ImageMagick 6.9.1-8 Q16 x86_64

[fmw42]

What platform? If unix, then you need to enclose the #fff in quotes. The following works for me on my Mac OSX snowleopard using IM 6.9.1.8 Q16. When I open it in PS (CS -- very old), it does not complain about the profile.

It is possible that PS is more sensitive in current versions. You are creating a bilevel (b/w) grayscale image. I am not sure if applying USWebCoatedSWOP.icc to a bilevel image is the issue?

Create the input image first, then use -units rather than -set units afterwards

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convert -size 1200x1800 xc:"#fff" -units PixelsPerInch -density 300 -black-point-compensation \
-intent Relative -profile /Users/fred/images/profiles/USWebCoatedSWOP.icc blank.tiff

[snibgo]

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convert -set units PixelsPerInch -density 300 -size 1200x1800 xc:#fff -fill xc:#f00 -draw 'rectangle 0 0 100 100' -black-point-compensation -intent Relative -profile USWebCoatedSWOP.icc test.tiff

You are creating an image with RGB channels and assigning a CMYK profile. Software will try to read your RGB channels as if they were CMYK. I'm not surprised Photoshop doesn't like it.

A more conventional command would first assign an sRGB profile, then convert to USWebCoatedSWOP.

[fmw42]

I would agree with user snibgo. I think he has pinpointed the problem and the solution.