Image modulation using palette.
1. Input is a tiff CMYK image (8 bit depth)
Total time of execution should be less than 7 seconds for a 20000x10000 pixels
It should work on images up to 1.5 GB
Execution of the code should be nodejs (can a nodejs wrapper around a c++ module, can also be nodejs code that uses c++ modules such as sharpjs)
1. Making a palette with X colors using any algorithm (can be octo quantization algo but not mandatory), we need at least 4 colors at the end in a CMYK format.
2. Each pixel of the original image has now a palette color associated and should be modulated with a specific hue parameter.
3. In order to make the hue parameter for each palette color (usually four) we will submit a cmyk target, and the hue parameter that are chosen should minimize the sum of the distances (or squarred distance) between the pixels associated to that palette color and the target cmyk.
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Time of last request:on Jun 3
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