BitmapSource TransformBitmap(RenderTargetBitmap source)
{
//.Mutate(x => x.get)
//.Clone(x => x.Rotate(RotateMode.Rotate90));
//sourceImage.Clone(x => x.Rotate(RotateMode.Rotate90));
var buffer = new UInt32[source.PixelWidth * source.PixelHeight];
source.CopyPixels(buffer, source.PixelWidth * 4, 0);
var target = new UInt32[source.PixelWidth];
for (var i = 0; i < source.PixelWidth; ++i)
{
var x = new Vector3();
for (var j = 0; j < source.PixelHeight; ++j)
{
uint packed = buffer[j * source.PixelWidth + i];
var pp = new Rgba32(packed);
if (pp.A != 255)
{
continue;
}
Rgb p = pp;
//if (packed != 0u) System.Diagnostics.Debugger.Break();
x = Vector3.Max(x, p.ToVector3());
}
target[i] = new Rgba32(x).PackedValue;
}
//return RenderTargetBitmap.Create(source.PixelWidth, source.PixelHeight, 96, 96, source.Format, source.Palette, buffer, source.PixelWidth * 4);
return(RenderTargetBitmap.Create(source.PixelWidth, 1, 96, 96, source.Format, source.Palette, target, source.PixelWidth * 4));
}