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by John_KZ
2950 days ago
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This is easily done, you can create an index for each color or color range. Additionally, you can mess with the typical B&W conversion weights for each channel. However this got me thinking, what do we want when we convert an image to bw? It's a pretty hard problem, because we want both semantic segmentation and preserving lightness.
Also you clearly can't have a one-to-one mapping when you lose 2 dimensions. Of course in the case of a simple UI that's not a problem, but with photography it is. |
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