Calculating transluency from two image sample?

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manpaint
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Calculating transluency from two image sample?

Post by manpaint » 2018-06-19T18:29:59-07:00

ImageMagick version: ImageMagick-7.0.6-Q16)
Operating System: Windows 7 (64 bits)

Apparently, comparing two image with a different background colors allow you to get the main element, including transluency, exemple:

Image

I was told the method could be automated with tools (that I don't have access to). Assuming ImageMagick is able to do this, does anyone know wich command can execute such task?

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fmw42
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Re: Calculating transluency from two image sample?

Post by fmw42 » 2018-06-19T19:45:03-07:00

This is the only reference in ImageMagick that I know. http://www.imagemagick.org/Usage/maskin ... background

manpaint
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Re: Calculating transluency from two image sample?

Post by manpaint » 2018-06-20T12:57:45-07:00

Thanks I found the command I was looking for!

The command for those who may stumble onto this thread in the future:

Code: Select all

convert a.png b.png -compose difference -separate match_alpha.png

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