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Ingy döt Net 2023-07-01 11:58:00 -04:00
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Task/Grayscale-image/J/grayscale-image-1.j Normal file
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NB. converts the image to grayscale according to formula
NB. L = 0.2126*R + 0.7152*G + 0.0722*B
toGray=: [: <. +/ .*"1&0.2126 0.7152 0.0722
NB. converts grayscale image to the color image, with all channels equal
toColor=: 3 & $"0

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Task/Grayscale-image/J/grayscale-image-2.j Normal file
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viewRGB toColor toGray myimg