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A thumbnailing library for Go. https://code.ivysaur.me/thumbnail/
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README.md

thumbnail

A thumbnailing library for Go.

  • Supports jpeg / png / gif / bmp / webp files (internally)
  • Supports video files (requires ffmpeg in $PATH)
  • Optional LRU cache of recent thumbnails for performance
  • Sampling algorithms: Nearest-neighbour, Bilinear (fast), Bilinear (accurate), Bicubic (Catmull-Rom)
  • Scaling algorithms: Fit inside, Fit outside, Stretch
  • Output formats: JPG, PNG, Quantised/lossy PNG (via go-imagequant), BMP

A standalone binary mkthumb is provided as a sample utility.

This package can be installed via go get: go get code.ivysaur.me/thumbnail

Changelog

2018-12-31 1.0.1

  • Convert to Go Modules
  • Update vendored dependencies

2018-06-09 1.0.0

  • Feature: Major speed improvement
  • Feature: Support FitInside, FitOutside, and Stretch stretching modes
  • Feature: Support Bilnear (Fast), Bilnear (Accurate), and Bicubic (Catmull-Rom) scaling algorithms
  • Feature: Support PNG output without imagequant; support BMP output
  • Feature: Support Webp and BMP input files
  • Fix wrong dimension output for video input files
  • Fix jagged output of bilinear resizer
  • ⬇️ thumbnail-1.0.0-src.tar.xz (4.78 KiB)

2018-06-04 0.2.1

2017-11-18 0.2.0

  • Initial standalone release
  • Feature: Decode input with specified mime type
  • Feature: Allow passing zero as thumbnail cache size
  • ⬇️ thumbnail-0.2.0-src.zip (23.37 KiB)

2017-01-03 0.1.0

  • Version of thumbnail vendored with webdir 1.0 (previously tagged as release-1.0)