public byte GetColorPixelValue(int row, int col, COLORID colorId)
{
LazyLoadPixels();
if ((_samplesPerPixel == 3) && (_bitsAllocated == 8))
{
int index = row * (_imageWidth * _samplesPerPixel) + (col * _samplesPerPixel) + (int)colorId;
if (index > _imageHeight * _imageWidth * 3)
{
return(0);
}
return(_pixels24[index]);
}
if ((_samplesPerPixel == 1) && (_bitsAllocated == 16))
{
// color images have 4 ushorts per color value when _bitsAllocated == 16
// Also assume that there is only 1 frame!
int index = (row * _imageWidth * 2) + (col * 2);
if (index >= _imageHeight * _imageWidth)
{
return(0);
}
// we have a valid index representing the pixel to retrieve the color for...
switch (colorId)
{
case COLORID.RED:
return((byte)(_pixels16[0][index] / 4095.0 * 255));
case COLORID.GREEN:
return((byte)(_pixels16[0][index + 3] / 4095.0 * 255));
case COLORID.BLUE:
return((byte)(_pixels16[0][index + 1] / 4095.0 * 255));
}
}
throw (new Exception("Invalid dicom image passed to GetColorPixelValue! (Invalid Samples or BitDepth)"));
}
public byte GetColorPixelValue(float row, float col, COLORID colorId)
{
return(_dicomDecoder.GetColorPixelValue((int)row, (int)col, colorId));
}
