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delphilanczos

Delphi Fast(er) Lanczos resample

I'd like to find some code for a very fast bitmap resampling using Lanczos filter. Currently using this: http://pastebin.com/JxuqLXB9

I've been looking for a faster implementation, to no avail. Tried some implementations from GraphicsEx, Graphics32, madGraphics, JEDI, they were all slower than this.

Solution

  • This answer should improve the timing of your scaling process - Scale an image nicely in Delphi?.

    I do not have any other knowledge about a faster implementation of the Lanczos resampling.