nikotron / dart-lut

The image processing library via 3d LUT that's written on the pure dart language.

Dart LUT3D

The library for working with LUTs.

License

project under MIT license

Changelogs

full changelog

Task List

• Basic impl.
• Read .cube files
• Read another formats
• Store 3DLUT
• Generate LUTs by expression
• Verifying LUTs
• Applying 3D LUTs
• Applying 1D LUTs
• Optimize perfomance
• Trilinear interpolation
• More tests
• Documentation
• Publish to PUB
• Remove task list

0.0.4

• more tests
• fixed wrong equalification of Colour class
• error handling while parsing LUT
• added travis integration
• some minor changes

Instalation

add dependency in pubsec.yaml

from pub.dartlang.org:

dependencies:
  dart_lut: ^0.0.4

latest from github.com:

dependencies:
  dart_lut:
      git: git://github.com/NiKoTron/dart-lut.git

Usage

generic example:

import 'dart:io';

import 'package:image/image.dart';
import 'package:dart_lut/src/lut.dart';

final lut = LUT.fromString(File('example.cube').readAsStringSync());
final isLoaded = await lut
    .awaitLoading()
    .timeout(Duration(milliseconds: 1500), onTimeout: () => false);

if (isLoaded) {
  final image = decodeImage(imageFile.readAsBytesSync());
  var lutedBytes = lut.applySync(image.getBytes());

  var imageLUT = Image.fromBytes(image.width, image.height, lutedBytes);
  var outputFile = File('out.jpg')..writeAsBytesSync(encodeJpg(imageLUT));
}

lut.applyAsStream(image.getBytes()).listen((result) {
  print('#${result.toRadixString(16).padLeft(4, '0')}'); //print ARGB value after applying LUT in HEX format
});

Sample results

image by Caique Silva LUTs: KURO B&W by David Morgan Jones, Arabica 12 and Lenox 340 by rocketstock

image by sean Kong LUTs: KURO B&W by David Morgan Jones, Arabica 12 and Lenox 340 by rocketstock

dart-lut's Issues

Apply LUT to any widget

I am especially interested in applying LUTs to video widgets.

Request to be Null Safety

@NiKoTron

I'd trying to use this package in the current dart version (2.17.6-stable)

and I found the message.

########
Error: Cannot run with sound null safety, because the following dependencies
don't support null safety:

• package:dart_lut

For solutions, see https://dart.dev/go/unsound-null-safety
########

Thank you.