imageman

Image manipulation library

Pure Nim score 30/100 · tests present · docs generated

Summary

Latest Version Unknown
License MIT
CI Status Passing
Downloads 0
Last Indexed 2026-07-21 05:24

Tags

image graphics processing manipulation

Installation

nimble install imageman
choosenim install imageman
git clone https://github.com/SolitudeSF/imageman

OS Compatibility

Platform Linux macOS Windows FreeBSD OpenBSD NetBSD Android iOS WASM Embedded
imageman ✓ ✓ ✓ - - - - - - ✓

Source

Repository https://github.com/SolitudeSF/imageman
Homepage https://github.com/SolitudeSF/imageman
Documentation View Documentation
Registry Source nimble_official

README

Imageman

Rudimentary image manipulation framework.

Some things may or may not work correctly.

Check examples directory for short demonstration.

Why

~~To have some boilerplate for recreational programming with images.~~ Manipulate. Images.

Projects using imageman

diffimg - image diffing tool and library.

blurhash - blurhash algorith implementation.

Installation

nimble install imageman

Backends

libjpeg(-turbo)

  • Activated with imagemanLibjpeg flag. Enabled by default.
  • SIMD accelerated JPEG encoder/decoder.
  • Dynamically linked. Requires dll/so/dylib at runtime.

libpng

  • Activated with imagemanLibpng flag. Enabled by default.
  • Fast PNG encoder/decoder (outperforms stb_image).
  • Dynamically linked. Requires dll/so/dylib of itself and zlib at runtime.

stb_image

  • Activated with imagemanStb flag. By default only enabled if libjpeg and libpng are disabled.
  • Supports reading and writing PNG, JPEG, BMP and TGA images but with limited control.
  • Header only - compiled in.

Features

  • Easy manipulation of individual pixel components
  • Image reading/writing
    • [x] PNG using libpng
    • [X] JPG using libjpeg(-turbo)
    • [x] BMP
    • [x] TGA
  • Color modes
    • [x] ColorRGBU - 8bit uint 3 components
    • [x] ColorRGBAU - 8bit uint 4 components
    • [x] ColorRGBF - 32bit float 3 components
    • [x] ColorRGBAF - 32bit float 4 components
    • [x] ColorRGBF64 - 64bit float 3 components
    • [x] ColorRGBAF64 - 64bit float 4 components
    • [x] ColorHSL - 32bit float
    • [x] ColorHSLuv - 64bit float, perceptually uniform, unlike normal HSL
    • [x] ColorHPLuv - 64bit float RGB float components have valid range from 0 to 1. Hue range is 0..360. Saturation/Lightness range from 0 to 1.
  • Filtering
    • [x] General convolutional kernel routine
      • [x] Smoothing
      • [x] Sharpening
      • [x] Edge detection
      • [x] Blur
    • [x] Greyscale
    • [x] Negative
    • [x] Sepia
    • [x] Quantization
  • Dithering
    • [x] Some kernels
  • Resizing
    • [x] Nearest neighbour
    • [x] Bilinear
    • [x] Trilinear
    • [x] Bicubic
    • [ ] Lanczos
    • [ ] Catmull-Rom
    • [ ] Cubic Hermite
  • Drawing
    • [x] Line
    • [x] Circle
    • [ ] Ellipse
    • [ ] Bezier curve
  • Rotating
    • [x] Vertically, Horizontally
    • [ ] Radial
  • Documentation

Examples

See examples directory.