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added monochrome print option

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@2491 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
JKlingen 2013-02-17 07:58:58 +00:00
parent 9f86db6828
commit b537ae7e14
11 changed files with 1612 additions and 1480 deletions
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7
GreenshotPlugin/Core/ImageHelper.cs
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@ -883,15 +883,16 @@ namespace GreenshotPlugin.Core {
/// <summary>
/// Returns a b/w of Bitmap
/// </summary>
/// <param name="sourceImage">Bitmap to create a b/w off</param>
/// <param name="sourceImage">Bitmap to create a b/w of</param>
/// <param name="threshold">Threshold for monochrome filter (0 - 255), lower value means less black</param>
/// <returns>b/w bitmap</returns>
public static Bitmap CreateMonochrome(Image sourceImage) {
public static Bitmap CreateMonochrome(Image sourceImage, byte threshold) {
using (IFastBitmap fastBitmap = FastBitmap.CreateCloneOf(sourceImage, sourceImage.PixelFormat)) {
fastBitmap.Lock();
for (int y = 0; y < fastBitmap.Height; y++) {
for (int x = 0; x < fastBitmap.Width; x++) {
Color color = fastBitmap.GetColorAt(x, y);
int colorBrightness = (color.R + color.G + color.B > 382) ? 255 : 0;
int colorBrightness = ((color.R + color.G + color.B) / 3 > threshold) ? 255 : 0;
Color monoColor = Color.FromArgb(color.A, colorBrightness, colorBrightness, colorBrightness);
fastBitmap.SetColorAt(x, y, monoColor);
}