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C++ is a statically typed, free-form, multi-paradigm, compiled, general-purpose programming language.

10 votes
2 answers
2k views

How do I avoid interpolation artefacts when scaling up a heightmap?

I am using a bicubic interpolation algorithm in order to upscale a height map, and I am noticing some artifacts around the pixels boundaries. However, these artifacts don't seem to appear when I use a …
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  • 141
4 votes

How do I avoid interpolation artefacts when scaling up a heightmap?

I made some searches and found that B-Spline have a continuous C2. I implemented it and it looks fine, even if it's an approximation and not an interpolation (it doesn't go through the samples). B-sp …
deck's user avatar
  • 141