diff --git a/GreenshotPlugin/Core/ImageHelper.cs b/GreenshotPlugin/Core/ImageHelper.cs
index c93c05226..0ac5739c5 100644
--- a/GreenshotPlugin/Core/ImageHelper.cs
+++ b/GreenshotPlugin/Core/ImageHelper.cs
@@ -967,6 +967,27 @@ namespace GreenshotPlugin.Core {
return bb.Bitmap;
}
}
+
+ ///
+ /// Returns a b/w of Bitmap
+ ///
+ /// Bitmap to create a b/w off
+ /// b/w bitmap
+ public static Bitmap CreateMonochrome(Image sourceImage) {
+ using (BitmapBuffer bb = new BitmapBuffer(sourceImage, true)) {
+ bb.Lock();
+ for (int y = 0; y < bb.Height; y++) {
+ for (int x = 0; x < bb.Width; x++) {
+ Color color = bb.GetColorAt(x, y);
+ int colorBrightness = (color.R+color.G+color.B > 382) ? 255 : 0;
+ Color monoColor = Color.FromArgb(color.A, colorBrightness, colorBrightness, colorBrightness);
+ bb.SetColorAt(x, y, monoColor);
+ }
+ }
+ bb.Unlock();
+ return bb.Bitmap;
+ }
+ }
///
/// Create a new bitmap where the sourceBitmap has a Simple border around it