CODEWITHSUNDEEP
javascriptcolorsheximagemagickrgb
john
john

Reputation: 78

Transform grey60 into rgb | Imagemagick

I'm using Imagemagick in js and I get the color of a pixel with his coordinates like this :

im.identify(['-format', '%[pixel:p{' + values.coordinate + '}]', values.file], function(err, color) { 
  console.log('color = ', color);
});

It works, but sometimes I get a color like 'grey60' or 'grey40' or something like that. Is there is a way to request that Imagemagick return data in hex or rgb ? Or there is a way to convert this format into hex or rgb ?

Upvotes: 0

Views: 45

Answers (1)

fmw42
fmw42

Reputation: 53081

In IM 6.9.8-9 and 7.0.5.10, support was added for %[hex:] property similar to %[pixel:], but returning hex values. So this should work in command line mode.

convert xc:red -depth 8 -format "%[hex:u.p{0,0}]\n" info:
FF0000

or adding the # symbol:

convert xc:red -depth 8 -format "\#%[hex:u.p{0,0}]\n" info:
#FF0000

For version of IM before that (at least for unix syntax):

convert xc:red -depth 8 txt: | tail -n +2 | sed -n 's/^.*\(\#.*\) .*$/\1/p'
#FF0000

So if you want a hex color at a coordinate, do something like:

convert rose: -depth 8 -format "\#%[hex:u.p{20,20}]\n" info:
#A93B2A

or

convert rose:[1x1+20+20] txt: | tail -n +2 | sed -n 's/^.*\(\#.*\) .*$/\1/p'
#A93B2A

Upvotes: 1

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