private unsafe System.Drawing.Bitmap InvertImage(System.Drawing.Bitmap invertImage)
{
if (invertImage == null)
{
return(null);
}
var image = (System.Drawing.Bitmap)invertImage.Clone();
BitmapData imageData = image.LockBits(new System.Drawing.Rectangle(0, 0, image.Width, image.Height),
ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
int height = image.Height;
int width = image.Width;
Parallel.For(
0,
height,
y =>
{
uint *imageRow = (uint *)(imageData.Scan0 + (y * imageData.Stride));
for (int x = 0; x < width; x++)
{
// Check if the mask byte is set
imageRow[x] = InvertColor(imageRow[x]);
}
});
image.UnlockBits(imageData);
return(image);
}
internal static unsafe System.Drawing.Bitmap InvertImage(System.Drawing.Bitmap sourceBitmap)
{
if (sourceBitmap == null)
{
return(null);
}
Bitmap invertedBitmap = Unsafe.As <System.Drawing.Bitmap>(sourceBitmap.Clone());
BitmapData imageData = invertedBitmap.LockBits(new System.Drawing.Rectangle(0, 0, invertedBitmap.Width, invertedBitmap.Height),
ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
int height = invertedBitmap.Height;
int width = invertedBitmap.Width;
for (int y = 0; y < height; y++)
//Parallel.For(
// 0,
// height,
// y =>
{
uint *imageRow = (uint *)(imageData.Scan0 + (y * imageData.Stride));
for (int x = 0; x < width; x++)
{
imageRow[x] = InvertColor(imageRow[x]);
}
//});
}
invertedBitmap.UnlockBits(imageData);
return(invertedBitmap);
}
