Rudimentary image manipulation framework.

Some things may or may not work correctly.

Check examples directory for short demonstration.

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

diffimg - image diffing tool and library.

blurhash - blurhash algorith implementation.

nimble install imageman

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

• 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.

• 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.

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

See examples directory.