Repositories list

• hocr-tools

  Public
  Tools for manipulating and evaluating the hOCR format for representing multi-lingual OCR results by embedding them into HTML.

  pdfrasterscan+ 4

  pdfrasterscanpillxmlhocrreportlab

  Python

  •

  Apache License 2.0

  •00 forks•22 stars•00 issues•11 pull request•Updated Apr 21, 2026Apr 21, 2026

• scantailor-experimental

  Public
  Scan Tailor Experimental is an interactive post-processing tool for scanned pages.

  imageebookthreshold+ 6

  imageebookthresholdsegmentationkmeansscanningintegral-imagedespecklescantailor

  C++

  •

  GNU General Public License v3.0

  •1010 forks•126126 stars•2929 issues•00 pull requests•Updated Apr 19, 2026Apr 19, 2026

• photoquick

  Public
  Light-weight image viewer with crop,resize,collage, photogrid and filters

  guiqtimage+ 6

  guiqtimageviewertransformimage-thresholdingrisdewarpingphotoquick

  C++

  •

  GNU General Public License v3.0

  •22 forks•44 stars•22 issues•00 pull requests•Updated Apr 6, 2026Apr 6, 2026

• scantailor-advanced

  Public
  ScanTailor Advanced is the version that merges the features of the ScanTailor Featured and ScanTailor Enhanced versions, brings new ones and fixes.

  imageebookthreshold+ 5

  imageebookthresholdsegmentationscanningintegral-imagedespecklescantailor

  C++

  •

  GNU General Public License v3.0

  •171171 forks•1717 stars•33 issues•00 pull requests•Updated Mar 25, 2026Mar 25, 2026

• .github

  Public
  Image Processing for Electronic Publications

  pdfimagepng+ 4

  pdfimagepngpublicjpeggimpdjvu

  The Unlicense

  •00 forks•44 stars•00 issues•00 pull requests•Updated Mar 15, 2026Mar 15, 2026

• jpdftweak

  Public
  jPdf Tweak - Swiss Army Knife for PDF files

  pdf

  pdf

  Java

  •11 fork•00 stars•00 issues•00 pull requests•Updated Mar 15, 2026Mar 15, 2026

• jbig2enc

  Public
  JBIG2 Encoder

  pdfjbig2

  pdfjbig2

  C++

  •

  Other

  •1212 forks•11 star•00 issues•00 pull requests•Updated Mar 9, 2026Mar 9, 2026

• scantailor-universal

  Public
  ScanTailor Universal - a fork based on Enhanced+Featured+Master versions of ST

  imagethresholdsegmentation+ 5

  imagethresholdsegmentationebooksscanningintegral-imagedespecklescantailor

  C++

  •

  GNU General Public License v3.0

  •2525 forks•33 stars•00 issues•00 pull requests•Updated Mar 1, 2026Mar 1, 2026

• imgavir

  Public
  High-quality pro HDR image resizing / scaling C++ library, including a very fast, precise, SIMD Lanczos resizer (header-only C++)

  C++

  •

  MIT License

  •4747 forks•00 stars•00 issues•00 pull requests•Updated Dec 28, 2025Dec 28, 2025

• scantailor-testing

  Public
  Test images for Scan Tailor

  testimagesscantailor

  testimagesscantailor

  GNU General Public License v3.0

  •00 forks•00 stars•00 issues•00 pull requests•Updated Dec 7, 2025Dec 7, 2025

• scantailor-deviant

  Public
  ScanTailor Deviant - a fork based on Universal and Experimental families of ST

  imagethresholdebooks+ 3

  imagethresholdebooksscanningdespecklescantailor

  C++

  •

  GNU General Public License v3.0

  •55 forks•2121 stars•77 issues•00 pull requests•Updated Oct 15, 2025Oct 15, 2025

• gimp-plugin-refocus

  Public
  The Refocus Gimp plug-in can be used to sharpen images.

  C

  •

  GNU General Public License v2.0

  •00 forks•33 stars•00 issues•00 pull requests•Updated Jun 7, 2025Jun 7, 2025

• gimp-scheme

  Public
  Gimp scripts

  schemegimpplugins

  schemegimpplugins

  Scheme

  •

  GNU General Public License v3.0

  •22 forks•00 stars•00 issues•00 pull requests•Updated May 18, 2025May 18, 2025

• gimp-plugin-resize-ris

  Public
  Gimp Resize RIS Plugin

  guigimpplugins+ 1

  guigimppluginsris

  Scheme

  •

  The Unlicense

  •00 forks•11 star•00 issues•00 pull requests•Updated May 18, 2025May 18, 2025

• gimp-plugin-balance

  Public
  Gimp Balance filter Plugin

  pluginbalancegimp

  pluginbalancegimp

  Scheme

  •

  The Unlicense

  •00 forks•11 star•00 issues•00 pull requests•Updated May 13, 2025May 13, 2025

• depress

  Public
  Program to create djvu from multiple files (using djvulibre)

  imagedjvuimage-thresholding+ 4

  imagedjvuimage-thresholdingebooksstbdjvulibredjvul

  C

  •

  BSD 2-Clause "Simplified" License

  •11 fork•22 stars•22 issues•00 pull requests•Updated Apr 21, 2025Apr 21, 2025

• sam2p

  Public
  raster (bitmap) image converter with smart PDF and PostScript (EPS) output

  pdfimageeps

  pdfimageeps

  C++

  •

  GNU General Public License v2.0

  •1616 forks•00 stars•00 issues•00 pull requests•Updated Mar 23, 2025Mar 23, 2025

• stbisqz

  Public
  SQZ - Low complexity, scalable lossless and lossy image compression library

  imagelossystb+ 1

  imagelossystbsqz

  C

  •

  MIT License

  •22 forks•00 stars•00 issues•00 pull requests•Updated Feb 26, 2025Feb 26, 2025

• netpbm

  Public
  image manipulation toolkit

  cliimageconvert+ 1

  cliimageconvertpnm

  C

  •33 forks•00 stars•00 issues•00 pull requests•Updated Feb 14, 2025Feb 14, 2025

• jpegoptim

  Public
  jpegoptim - utility to optimize/compress JPEG files

  qualityimagejpeg+ 1

  qualityimagejpeglibjpeg

  C

  •

  GNU General Public License v3.0

  •127127 forks•00 stars•00 issues•00 pull requests•Updated Feb 5, 2025Feb 5, 2025

• gimp-plugin-colors-threshold

  Public
  Gimp plugin Bimodal Threshold

  pythonplugingui+ 4

  pythonpluginguigimpthresholdimage-thresholdingbimodal

  C

  •

  The Unlicense

  •00 forks•11 star•00 issues•00 pull requests•Updated Jan 31, 2025Jan 31, 2025

• gimp-plugin-greycstoration

  Public
  GREYCstoration is a Gimp plugin using the algorithm written by David Tschumperlé from GREYC laboratory (at Caen in France).

  plugingimpdenoise

  plugingimpdenoise

  C++

  •

  GNU General Public License v2.0

  •00 forks•11 star•00 issues•00 pull requests•Updated Jan 30, 2025Jan 30, 2025

• stbicomix

  Public
  Comix filter based of Gauss blur.

  imagefilterstb+ 1

  imagefilterstbcomix

  C

  •

  The Unlicense

  •00 forks•00 stars•00 issues•00 pull requests•Updated Jan 30, 2025Jan 30, 2025

• stbithresedgediv

  Public
  EdgeDiv ("EdgePlus" + "BlurDiv") threshold an image.

  imagethresholdimage-thresholding+ 1

  imagethresholdimage-thresholdingstb

  C

  •

  The Unlicense

  •00 forks•00 stars•00 issues•00 pull requests•Updated Jan 24, 2025Jan 24, 2025

• stbiwarp7p

  Public
  Simple utility to apply 7+1 parameter distortion (k1, k2, k3, p1, p2, cx, cy, mc)

  imagestbwarping+ 2

  imagestbwarpingfisheyelens-distortion

  C

  •

  The Unlicense

  •00 forks•11 star•00 issues•00 pull requests•Updated Jan 21, 2025Jan 21, 2025

• stbibalance

  Public
  Balance filter based of Gauss blur.

  imagefiltersstb

  imagefiltersstb

  C

  •

  The Unlicense

  •00 forks•00 stars•00 issues•00 pull requests•Updated Dec 25, 2024Dec 25, 2024

• stbithresgrad

  Public
  Grad (aka Gradient Snip) threshold an image based of Gauss blur.

  imagethresholdimage-thresholding+ 1

  imagethresholdimage-thresholdingstb

  C

  •

  The Unlicense

  •00 forks•00 stars•00 issues•00 pull requests•Updated Dec 25, 2024Dec 25, 2024

• jpeg2pdf

  Public
  Cross-platform command-line tool for creation of PDF documents from scans/photos of pages in JPEG (.jpg) format and the lightest weight ANSI C library to put mu…

  pdfjpeglossless

  pdfjpeglossless

  C

  •

  The Unlicense

  •11 fork•11 star•00 issues•00 pull requests•Updated Dec 25, 2024Dec 25, 2024

• gimp-plugin-reduce-color-depth

  Public
  GIMP Plugin for reducing the color bit depth of images

  pluginimagegimp+ 1

  pluginimagegimpdepth

  C

  •

  GNU General Public License v3.0

  •11 fork•00 stars•00 issues•00 pull requests•Updated Dec 22, 2024Dec 22, 2024

• stbibalance-examples

  Public
  Examples Balance filter based of Gauss blur.

  The Unlicense

  •00 forks•00 stars•00 issues•00 pull requests•Updated Dec 14, 2024Dec 14, 2024