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| using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.Linq; using System.Text;
namespace WindowsFormsApplication1 { class ColorEdit { public static Bitmap Invert(Bitmap InputImage) { Bitmap EditImage = new Bitmap(InputImage.Width, InputImage.Height);
Graphics Graphics = Graphics.FromImage(EditImage);
ColorMatrix colorMatrix = new ColorMatrix( new float[][] { new float[] {-1, 0, 0, 0, 0}, new float[] {0, -1, 0, 0, 0}, new float[] {0, 0, -1, 0, 0}, new float[] {0, 0, 0, 1, 0}, new float[] {1, 1, 1, 0, 1} });
ImageAttributes ImageAttributes = new ImageAttributes();
ImageAttributes.SetColorMatrix(colorMatrix);
Graphics.DrawImage(InputImage, new Rectangle(0, 0, InputImage.Width, InputImage.Height), 0, 0, InputImage.Width, InputImage.Height, GraphicsUnit.Pixel, ImageAttributes);
InputImage.Dispose(); Graphics.Dispose();
return EditImage; } public static Bitmap Grayscale(Bitmap InputImage) { Bitmap EditImage = new Bitmap(InputImage.Width, InputImage.Height);
Graphics Graphics = Graphics.FromImage(EditImage);
ColorMatrix colorMatrix = new ColorMatrix( new float[][] { new float[] {0.3f, 0.3f, 0.3f, 0, 0}, new float[] {0.59f, 0.59f, 0.59f, 0, 0}, new float[] {0.11f, 0.11f, 0.11f, 0, 0}, new float[] {0, 0, 0, 1, 0}, new float[] {0, 0, 0, 0, 1} });
ImageAttributes ImageAttributes = new ImageAttributes();
ImageAttributes.SetColorMatrix(colorMatrix);
Graphics.DrawImage(InputImage, new Rectangle(0, 0, InputImage.Width, InputImage.Height), 0, 0, InputImage.Width, InputImage.Height, GraphicsUnit.Pixel, ImageAttributes);
InputImage.Dispose(); Graphics.Dispose();
return EditImage; }
public static Bitmap Brightness(Bitmap InputImage, float Brightness) { Bitmap EditImage = new Bitmap(InputImage.Width, InputImage.Height);
Graphics Graphics = Graphics.FromImage(EditImage);
ColorMatrix colorMatrix = new ColorMatrix( new float[][] { new float[] {1, 0, 0, 0, 0}, new float[] {0, 1, 0, 0, 0}, new float[] {0, 0, 1, 0, 0}, new float[] {0, 0, 0, 1, 0}, new float[] {Brightness, Brightness, Brightness, 0, 1} });
ImageAttributes ImageAttributes = new ImageAttributes();
ImageAttributes.SetColorMatrix(colorMatrix);
Graphics.DrawImage(InputImage, new Rectangle(0, 0, InputImage.Width, InputImage.Height), 0, 0, InputImage.Width, InputImage.Height, GraphicsUnit.Pixel, ImageAttributes);
InputImage.Dispose(); Graphics.Dispose();
return EditImage; } public static Bitmap Contrast(Bitmap InputImage, float Contrast) { Bitmap EditImage = new Bitmap(InputImage.Width, InputImage.Height);
Graphics Graphics = Graphics.FromImage(EditImage);
float T = (1.0f - Contrast) / 2.0f;
ColorMatrix colorMatrix = new ColorMatrix( new float[][] { new float[] {Contrast, 0, 0, 0, 0}, new float[] {0, Contrast, 0, 0, 0}, new float[] {0, 0, Contrast, 0, 0}, new float[] {0, 0, 0, 1, 0}, new float[] {T, T, T, 0, 1} });
ImageAttributes ImageAttributes = new ImageAttributes();
ImageAttributes.SetColorMatrix(colorMatrix);
Graphics.DrawImage(InputImage, new Rectangle(0, 0, InputImage.Width, InputImage.Height), 0, 0, InputImage.Width, InputImage.Height, GraphicsUnit.Pixel, ImageAttributes);
InputImage.Dispose(); Graphics.Dispose();
return EditImage; } } } |