private async Task DisjunctOriginalImageWithBackgroundBuffer()
{
await _loadImageTask;
if (_backgroundBuffer == null ||
_backgroundBuffer.Width != _originalImage.Width ||
_backgroundBuffer.Height != _originalImage.Height)
{
GenerateBackgroundBuffer(_originalImage.Width, _originalImage.Height);
}
_disjunctionOfOriginalImageWithBackgroundBuffer = new RgbImage <byte>
{
Width = _originalImage.Width,
Height = _originalImage.Height,
ImmageArray = new byte[RowsCount, 3]
};
for (int i = 0; i < RowsCount; i++)
{
_disjunctionOfOriginalImageWithBackgroundBuffer.ImmageArray[i, 0] =
(byte)(_originalImage.ImmageArray[i, 0] | _backgroundBuffer.ImmageArray[i, 0]);
_disjunctionOfOriginalImageWithBackgroundBuffer.ImmageArray[i, 1] =
(byte)(_originalImage.ImmageArray[i, 1] | _backgroundBuffer.ImmageArray[i, 1]);
_disjunctionOfOriginalImageWithBackgroundBuffer.ImmageArray[i, 2] =
(byte)(_originalImage.ImmageArray[i, 2] | _backgroundBuffer.ImmageArray[i, 2]);
}
}
private void GenerateBackgroundBuffer(int width, int height)
{
_backgroundBuffer = new RgbImage <byte>
{
Width = width,
Height = height,
ImmageArray = new byte[RowsCount, 3]
};
for (int i = 0; i < RowsCount; i++)
{
_backgroundBuffer.ImmageArray[i, 0] =
_backgroundBuffer.ImmageArray[i, 1] =
_backgroundBuffer.ImmageArray[i, 2] = height / 2 * width > i ? byte.MinValue : byte.MaxValue;
}
}
private async Task GenerateGradientedOriginalImage()
{
await _loadImageTask;
_gradientedOriginalImage = new RgbImage <byte>()
{
Width = _originalImage.Width,
Height = _originalImage.Height,
ImmageArray = new byte[RowsCount, 3]
};
for (int i = 0; i < RowsCount; i++)
{
_gradientedOriginalImage.ImmageArray[i, 0] =
_gradientedOriginalImage.ImmageArray[i, 1] =
0;
_gradientedOriginalImage.ImmageArray[i, 2] =
GetColorValueFromGradientMeasure(_originalImage.ImmageArray[i, 2]);
}
}
private Task LoadDcmImage(string dcmPath)
{
return(Task.Run(() =>
{
var dcmObj = DICOMObject.Read(dcmPath);
var rowsTag = new Tag("0028", "0010");
var columnsTag = new Tag("0028", "0011");
var bitsAllocatedTag = new Tag("0028", "0100");
var bitsAllocated = dcmObj.FindFirst(bitsAllocatedTag);
var stream = dcmObj.PixelStream;
switch ((ushort)bitsAllocated.DData)
{
case 8:
var pixels = new byte[stream.Length];
stream.Read(pixels, 0, pixels.Length);
_originalImage = new RgbImage <byte>
{
ImmageArray = ConvertToRgb(pixels),
Width = (ushort)dcmObj.FindFirst(columnsTag).DData,
Height = (ushort)dcmObj.FindFirst(rowsTag).DData
};
break;
default:
MessageBox.Show($"Given bits allocated value ({bitsAllocated}) isn't supported!");
break;
}
}));
}