adaptiveThreshold static method

Future<Uint8List?> adaptiveThreshold({ required CVPathFrom pathFrom, required String pathString, required double maxValue, required int adaptiveMethod, required int thresholdType, required int blockSize, required double constantValue, })

Implementation

static Future<Uint8List?> adaptiveThreshold({
  required CVPathFrom pathFrom,
  required String pathString,
  required double maxValue,
  required int adaptiveMethod,
  required int thresholdType,
  required int blockSize,
  required double constantValue,
}) async {
  File _file;
  Uint8List _fileAssets;

  Uint8List? result;
  int adaptiveMethodTemp = (adaptiveMethod > 1)
      ? 1
      : (adaptiveMethod < 0)
          ? 0
          : adaptiveMethod;

  int thresholdTypeTemp = (thresholdType > 1)
      ? 1
      : (thresholdType < 0)
          ? 0
          : thresholdType;

  switch (pathFrom) {
    case CVPathFrom.GALLERY_CAMERA:
      result = await platform.invokeMethod('adaptiveThreshold', {
        "pathType": 1,
        "pathString": pathString,
        "data": Uint8List(0),
        'maxValue': maxValue,
        'adaptiveMethod': adaptiveMethodTemp,
        'thresholdType': thresholdTypeTemp,
        'blockSize': blockSize,
        'constantValue': constantValue,
      });
      break;
    case CVPathFrom.URL:
      _file = await DefaultCacheManager().getSingleFile(pathString);
      result = await platform.invokeMethod('adaptiveThreshold', {
        "pathType": 2,
        "pathString": '',
        "data": await _file.readAsBytes(),
        'maxValue': maxValue,
        'adaptiveMethod': adaptiveMethodTemp,
        'thresholdType': thresholdTypeTemp,
        'blockSize': blockSize,
        'constantValue': constantValue
      });

      break;
    case CVPathFrom.ASSETS:
      _fileAssets = await Utils.imgAssets2Uint8List(pathString);
      result = await platform.invokeMethod('adaptiveThreshold', {
        "pathType": 3,
        "pathString": '',
        "data": _fileAssets,
        'maxValue': maxValue,
        'adaptiveMethod': adaptiveMethodTemp,
        'thresholdType': thresholdTypeTemp,
        'blockSize': blockSize,
        'constantValue': constantValue
      });
      break;
  }

  return result;
}