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I am curious. I do not know much about image encoding and the such. What other types are there besides linear either row by row or column by column? It seems to
by minkzilla 9y ago
I am curious. I do not know much about image encoding and the such. What other types are there besides linear either row by row or column by column? It seems to me that those two are the only logical ways to map pixels.
- arnarbi 9y agoE.g. https://en.m.wikipedia.org/wiki/Hilbert_curve https://en.m.wikipedia.org/wiki/Hilbert_curve
- besselheim 9y agoAny permutation could be used, but I suppose you'd want to use ones that form some sort of visually recognisable pattern. For example, a spiral emerging from the centre of the image, or all the even numbered pixels from a linear scan followed by all those indexed by an odd number.
- dylan604 9y ago"a spiral emerging from the centre of the image" Would this be middle-out compression?
- Sunset 9y agoPolar coordinates?
- theresistor 9y agoZ-order (aka Morton order) is widely used in GPU acceleration, as a means of converting 2D locality into 1D locality. https://en.wikipedia.org/wiki/Z-order_curve https://en.wikipedia.org/wiki/Z-order_curve