Grayscale image: Difference between revisions
Content added Content deleted
(add Ruby) |
m (→{{header|Ruby}}: add grayscale-in-place method) |
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| Line 545: | Line 545: | ||
end |
end |
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gray |
gray |
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end |
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def to_grayscale! |
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@width.times do |x| |
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@height.times do |y| |
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self[x,y] = self[x,y].to_grayscale |
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end |
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end |
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end |
end |
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end</lang> |
end</lang> |
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