v1.3.1

Full Changelog: v1.1.1...v1.3.1

v1.3.1 feature additions

• add render argument, possible values:
  • irc, ansi, ansi24
  • obsoletes --irc, --ansi and --ansi24
• add blocks argument for control over glyphs used in output:
  • full, half, quarter, eighth, triangle, corner, geometric, box, legacy
  • obsoletes --hb and --qb
• switch to unicode-to-bitmap mapping for glyphs, enabling arbitrary shapes and higher resolution
• implement fast, tolerance-based palette matching with caching for improved colour reproduction
• consolidate draw logic into a single rendering pipeline for all ansi and irc outputs
• add command-line tools for generating glyph bitmaps in src/chars.rs

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2025-11-19 - Windows release

• Added experimental Windows build by request

v1.3.0

Full Changelog: v1.1.1...v1.3.0

v1.3.0 feature additions

• add render argument, possible values:
  • irc, ansi, ansi24
  • obsoletes --irc, --ansi and --ansi24
• add blocks argument for control over glyphs used in output:
  • full, half, quarter, eighth, triangle, corner, geometric, box, legacy
  • obsoletes --hb and --qb
• switch to unicode-to-bitmap mapping for glyphs, enabling arbitrary shapes and higher resolution
• implement fast, tolerance-based palette matching with caching for improved colour reproduction
• consolidate draw logic into a single rendering pipeline for all ansi and irc outputs
• add command-line tools for generating glyph bitmaps in src/chars.rs

v1.1.1

bugfixes

• collision between height and help arguments
• mixup between RGB and IRC99 colour values resulted in '255' being used as colour code in irc braille outputs

v1.1.0

img2irc (1.1.0)

changelog

• new "braille" pixel output type
  • --luma-brightness, --luma-contrast, --luma-gamma, --luma-invert
    • affect dithering pattern without affecting colours
• new default behaviours
  • use image height or width for output if not specified
  • if only one specified, determine other dimension based on original aspect ratio + --aspect and --scale (if specified)
• new CLI options
  • --filter
    • use nearest resize sampling filter by default for 1:1 reproduction
  • --colorspace
    • operate in hsv, hsl, hsluv or lch colourspace
  • --scale and --aspect
    • apply scaling factors to x and y dimensions
    • lock final aspect ratio
  • --crop, --fliph, --flipv, --rotate
• improved quadblock rendering
  • bugfix in quadblock rendering
  • no longer reduces output height by half to maintain original aspect ratio (use --scale if you want this)
• fixed musl build
• fixed build on arch linux

v1.0.4

• fixed irc rendering bug
• added quarterblock rendering mode (experimental)
• added nograyscale flag to exclude grayscale colours from palette
• statically built musl binary for x86_64 available

v1.0.0

• fix brightness, contrast, saturation, hue, gamma (not working in last release)
• remove opacity as it is functionally the same as brightness