QOI: Lossless Image Compression in O(n) Time

Re:QOI: Lossless Image Compression in O(n) Time by zosoworld on Wednesday November 24, 2021 @07:06AM (#29329166)

I'm wondering how scalable would this be for hyperspectral images, with 25 channels for example. I'm guessing it's just repeating the processing for RGB channels but for 25?

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Re:QOI: Lossless Image Compression in O(n) Time by jameshart on Wednesday November 24, 2021 @12:33PM (#29332622)

Very much the kind of expert group design-by-committee type of requirement that this simple compression scheme was designed not to handle.

Since this scheme works primarily on exact cross-channel pixel matches, no. No it won’t work well for 25 channel images.

Which is a good thing. Most people are not trying to encode 25 channel hyperspectral data and if they are they can use their own format designed well for that purpose (or a committee-derived format that handles it adequately).

Or they can split the 25 channels across 7 4 channel images and encode them using this.

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