pushd / colorpal

android color correction library

ColorPal - simple icc profile color correction for android

ColorPal is powered by Little-CMS

Installation

1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

	allprojects {
		repositories {
			...
			maven { url 'https://jitpack.io' }
		}
	}

2. Add the dependency

	dependencies {
	        compile 'com.github.pushd:colorpal:0.1.7'
	}

Usage

Without renderscript:

import com.pushd.colorpal.ColorCorrector;
...

ColorCorrector corrector = new ColorCorrector();
corrector.loadDisplayICCProfile("/path/to/profile.icc");

Bitmap mybitmap = ...;
corrector.correctBitmap(mybitmap);
// mybitmap has been updated in-place

With a renderscript 3DLUT:

import com.pushd.colorpal.ColorCorrector;
...

ColorCorrector corrector = new ColorCorrector();
corrector.loadDisplayICCProfile("/path/to/profile.icc");

RenderScript rs = RenderScript.create(this);
ScriptIntrinsic3DLUT lut = corrector.create3DLUT(rs);

Bitmap original = ...;
Bitmap corrected = original.copy(Bitmap.Config.ARGB_8888, false);

Allocation input = Allocation.createFromBitmap(rs, original);
Allocation output = Allocation.createFromBitmap(rs, corrected);

lut.forEach(input, output);
output.copyTo(corrected);

// 'corrected' now contains the corrected bitmap

Development

1. install the Android NDK (last used android-ndk-r12b)

2. add ndk.dir=<your-path-to-ndk> in local.properties

3. Run:

git submodule init
git submodule update
./gradlew assemble