public List<IntPoint> ProcessImage(Bitmap image)
{
// check image format
if (
(image.PixelFormat != PixelFormat.Format8bppIndexed) &&
(image.PixelFormat != PixelFormat.Format24bppRgb) &&
(image.PixelFormat != PixelFormat.Format32bppRgb) &&
(image.PixelFormat != PixelFormat.Format32bppArgb)
)
{
throw new UnsupportedImageFormatException("Unsupported pixel format of the source");
}
// lock source image
BitmapData imageData = image.LockBits(
new Rectangle(0, 0, image.Width, image.Height),
ImageLockMode.ReadOnly, image.PixelFormat);
List<IntPoint> corners;
try
{
// process the image
corners = ProcessImage(new UnmanagedImage(imageData));
}
finally
{
// unlock image
image.UnlockBits(imageData);
}
return corners;
}