public unsafe HistoRaw ApplyTo16Bits(ImageComponent <ushort> image, SoftwareBitmap bitmap, bool histogram)
{
Debug.Assert(bitmap.BitmapPixelFormat == BitmapPixelFormat.Rgba16);
var buffer = Apply(image);
//Clip the image
//Luminance.Clip(buffer, 16);
HistoRaw histo = null;
//calculate the new histogram (create a 8 bits histogram)
if (histogram)
{
histo = HistogramHelper.CalculateHistogram(buffer);
}
//copy the buffer to the image with clipping
//calculte the shift between colordepth input and output
int shift = image.ColorDepth - 16;
using (BitmapBuffer buff = bitmap.LockBuffer(BitmapBufferAccessMode.Write))
using (var reference = buff.CreateReference())
{
((IMemoryBufferByteAccess)reference).GetBuffer(out var temp, out uint capacity);
Parallel.For(0, buffer.dim.height, y =>
{
long realY = y * buffer.dim.width;
for (int x = 0; x < buffer.dim.width; x++)
{
long realPix = realY + x;
long bufferPix = realPix * 8;
temp[bufferPix] = (byte)(buffer.red[realPix] >> 8);
temp[bufferPix + 1] = (byte)(buffer.red[realPix]);
temp[bufferPix + 2] = (byte)(buffer.green[realPix] >> 8);
temp[bufferPix + 3] = (byte)(buffer.green[realPix]);
temp[bufferPix + 4] = (byte)(buffer.blue[realPix] >> 8);
temp[bufferPix + 5] = (byte)(buffer.blue[realPix]);
temp[bufferPix + 6] = 255; //set transparency to 255 else image will be blank
temp[bufferPix + 7] = 255; //set transparency to 255 else image will be blank
}
});
}
return(histo);
}
public unsafe HistoRaw ApplyTo8Bits(ImageComponent <ushort> image, SoftwareBitmap bitmap, bool histogram)
{
Debug.Assert(image.red != null);
Debug.Assert(image.blue != null);
Debug.Assert(image.green != null);
Debug.Assert(image.dim.Area >= 4);
Debug.Assert(bitmap != null);
Debug.Assert(image.dim.Area == bitmap.PixelHeight * bitmap.PixelWidth);
var buffer = Apply(image);
//Clip the image
Luminance.Clip(buffer, 8);
//calculate the new histogram (create a 8 bits histogram)
HistoRaw histo = null;
if (histogram)
{
histo = HistogramHelper.CalculateHistogram(buffer);
}
//copy the buffer to the image with clipping
using (BitmapBuffer buff = bitmap.LockBuffer(BitmapBufferAccessMode.Write))
using (var reference = buff.CreateReference())
{
((IMemoryBufferByteAccess)reference).GetBuffer(out var temp, out uint capacity);
Parallel.For(0, buffer.dim.height, y =>
{
long realY = y * buffer.dim.width;
for (int x = 0; x < buffer.dim.width; x++)
{
long realPix = realY + x;
long bufferPix = realPix * 4;
temp[bufferPix] = (byte)(buffer.blue[realPix]);
temp[bufferPix + 1] = (byte)(buffer.green[realPix]);
temp[bufferPix + 2] = (byte)(buffer.red[realPix]);
temp[bufferPix + 3] = 255; //set transparency to 255 else image will be blank
}
});
}
return(histo);
}
