nxshock/colorcrop
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A Go library for cropping images by removing borders with specified color.
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README.md

colorcrop

Build Status Coverage Status GoDoc

A pure Go library for cropping images by removing borders with specified color.

Installation

go get -u github.com/nxshock/colorcrop

Usage

Import package with

import "github.com/nxshock/colorcrop"

Crop white borders with 50% of thresold:

croppedImage := colorcrop.Crop(
    sourceImage,                    // for source image
    color.RGBA{255, 255, 255, 255}, // crop white border
    0.5)                            // with 50% thresold

You may use custom comparator of colors:

croppedImage := colorcrop.CropWithComparator(
    sourceImage,                    // for source image
    color.RGBA{255, 255, 255, 255}, // crop white border
    0.5,                            // with 50% thresold
    colorcrop.CmpCIE76)             // using CIE76 standart for defining color difference

Examples

See here.