Dart Compress Uint8List Image

Question

How do I compress a Uint8List image? The purpose to to get a smaller size (length in bytes). I'm trying to avoid converting the Uint8List to File before compression.

Answer 1

if you don't mind to use packages for it, you can use: flutter_image_compress

Answer 2

this worked for me

File imageFile = File.fromRawPath(uint8List);
var compressedImage = await testCompressFile(imageFile);

// compress file and get Uint8List
  Future<Uint8List?> testCompressFile(File file) async {
    Uint8List? result;
    try {
      result = await FlutterImageCompress.compressWithFile(
        file.absolute.path,
        minWidth: 500,
        minHeight: 500,
        quality: 94,
      );
      print(file.lengthSync());
      print(result?.length);
    } on UnsupportedError catch (e) {
      print(e);

    }
    return result;