-clut command changes in v7?

[chaoscarnage]

We used to use -clut to recolor some images and after upgrading to version 7 it doesn't appear to work the same way.

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img1.png grad.png -clut -newimg.png

Now it seems to just splat one color all over the image without applying the gradient along the greyscale.

[fmw42]

Please supply your exact IM version and platform and your two input image. You can upload to any free hosting service and put the URLs here. Is your img1 grayscale and grad color or the other way around or what?

[fmw42]

It seems to work fine for me using IM 7.0.5.10 Mac OSX Sierra

Input:

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magick \( -size 256x256 gradient: \) \( rainbow.jpg -gravity north -crop 600x1+0+0 +repage \) -clut result1.png

Input:

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magick logo.png \( -size 1x256 gradient: -rotate 90 -gamma 1.5 \) -clut result2.png

[chaoscarnage]

Here is an imgur album with images and the resulting image http://imgur.com/a/7u5Oa

I used

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 convert grey.png rainbow.png -clut newimg.png

Linux Ubuntu 14.04.5 LTS

Version: ImageMagick 7.0.5-7 Q16 x86_64 2017-05-25

[chaoscarnage]

EDIT: updated album with how it turns out in version 6

[Bonzo]

Looks like the transparency is being coloured.

[magick]

Try

Code: Select all

convert -channel RGB grey.png rainbow.png -clut newimg.png

See https://www.imagemagick.org/script/porting.php.

[chaoscarnage]

Thanks for the quick response! Looks good!