Search Results for "frequency"

...Compared to similar libraries, libvips runs quickly and uses little memory. libvips is licensed under the LGPL 2.1+. It has around 300 operations covering arithmetic, histograms, convolution, morphological operations, frequency filtering, colour, resampling, statistics and others. It supports a large range of numeric types, from 8-bit int to 128-bit complex. Images can have any number of bands. It supports a good range of image formats, including JPEG, JPEG2000, JPEG-XL, TIFF, PNG, WebP, HEIC, AVIF, FITS, Matlab, OpenEXR, PDF, SVG, HDR, PPM / PGM / PFM, CSV, GIF, Analyze, NIfTI, DeepZoom, and OpenSlide. ...

fork of Phil Howards Angif 1.0.0 beta3 (http://freecode.com/projects/angif) Implemented "layered" (usage of transparency) 24bit color-depth support for gif instead of the original tiled one (mosaic of 255 color gifs). Instead of the divide-and-conquer approach this one uses sorting (bubble sort, sorry) for color frequency and distance grouping. Build as windows command line tool with MingGW. Workflow: import truecolor image to GIMP, export 24RAW from GIMP, feeding to rawtogif.exe e.g. "rawtogif.exe 1024 768 sunflower.raw" output a uncompressed (no LZW compression) GIF, needs to be feed to gifsicle for reasonable size.

Some Plugins for gimp or standalone usage: Fourier for and backward transformation for gimp AFP Overlay file plugin (read) scaling in the frequency domain