//暗角
public static BitmapImage Vignetting(BitmapImage bitmapImage)
{
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
int width = bitmap.Width;
int height = bitmap.Height;
double cx = width / 2;
double cy = height / 2;
double maxdist = cx * cx + cy * cy;
double currdist = 0, factor;
Color pixel;
for (int i = 0; i < width; i++)
{
for (int j = 0; j < height; j++)
{
currdist = (i - cx) * (i - cx) + (j - cy) * (j - cy);
factor = currdist / maxdist;
pixel = bitmap.GetPixel(i, j);
int red = (int)(pixel.R * (1 - factor));
int green = (int)(pixel.G * (1 - factor));
int blue = (int)(pixel.B * (1 - factor));
bitmap.SetPixel(i, j, Color.FromArgb(red, green, blue));
}
}
return(HelpClass.Bitmap2BitmapImage(bitmap));
}
//扩散
public static BitmapImage Biffusion(BitmapImage bitmapImae)
{
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImae);
int red, green, blue;
int flag = 0;
Color pixel;
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
Random random = new Random();
int RankKey = random.Next(-5, 5);
if (i + RankKey >= bitmap.Width || j + RankKey >= bitmap.Height || i + RankKey < 0 || j + RankKey < 0)
{
flag = 1;
continue;
}
pixel = bitmap.GetPixel(i + RankKey, j + RankKey);
red = (int)(pixel.R);
green = (int)(pixel.G);
blue = (int)(pixel.B);
bitmap.SetPixel(i, j, Color.FromArgb(red, green, blue));
}
}
return(HelpClass.Bitmap2BitmapImage(bitmap));
}
private void HistTool_Click(object sender, RoutedEventArgs e)
{
BitmapImage bitmapImage = targetImage.Source as BitmapImage;
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
MenuItem mi = e.Source as MenuItem;
string commond = mi.Header.ToString();
if (commond == "灰度直方图")
{
Hist_Form hist_Form = new Hist_Form(bitmap);
hist_Form.Show();
}
}
//去色
//gray = 0.3 * R + 0.59 * G + 0.11 * B
public static BitmapImage Decolorize(BitmapImage bitmapImage)
{
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
int gray;
Color pixel;
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
pixel = bitmap.GetPixel(i, j);
gray = (int)(0.3 * pixel.R + 0.59 * pixel.G + 0.11 * pixel.B);
bitmap.SetPixel(i, j, Color.FromArgb(gray, gray, gray));
}
}
return(HelpClass.Bitmap2BitmapImage(bitmap));
}
//浮雕
public static BitmapImage Relief(BitmapImage bitmapImage)
{
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
int red, green, blue;
Color pixel;
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
pixel = bitmap.GetPixel(i, j);
red = (int)(255 - pixel.R);
green = (int)(255 - pixel.G);
blue = (int)(255 - pixel.B);
bitmap.SetPixel(i, j, Color.FromArgb(red, green, blue));
}
}
return(HelpClass.Bitmap2BitmapImage(bitmap));
}
//马赛克
public static BitmapImage Mosaic(BitmapImage bitmapImage)
{
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
int RIDIO = 50;
for (int h = 0; h < bitmap.Height; h += RIDIO)
{
for (int w = 0; w < bitmap.Width; w += RIDIO)
{
int avgRed = 0, avgGreen = 0, avgBlue = 0;
int count = 0;
for (int x = w; (x < w + RIDIO && x < bitmap.Width); x++)
{
for (int y = h; (y < h + RIDIO && y < bitmap.Height); y++)
{
Color pixel = bitmap.GetPixel(x, y);
avgRed += pixel.R;
avgGreen += pixel.G;
avgBlue += pixel.B;
count++;
}
}
avgRed = avgRed / count;
avgGreen = avgGreen / count;
avgBlue = avgBlue / count;
for (int x = w; (x < w + RIDIO && x < bitmap.Width); x++)
{
for (int y = h; (y < h + RIDIO && y < bitmap.Height); y++)
{
bitmap.SetPixel(x, y, Color.FromArgb(avgRed, avgGreen, avgBlue));
}
}
}
}
return(HelpClass.Bitmap2BitmapImage(bitmap));
}
//文件菜单
private void FileMenuItem_Click(object sender, RoutedEventArgs e)
{
MenuItem mi = e.Source as MenuItem;
string commond = mi.Header.ToString();
if (commond == "打开图片")
{
OpenFileDialog openFileDialog = new OpenFileDialog();
//openFileDialog.Filter = "所有图像文件|*.bmp;*.pcx;*.png;*.jpg;*.gif";
//openFileDialog.Title = "打开图像文件";
openFileDialog.Filter = "所有图像文件|*.bmp;*.pcx;*.png;*.jpg;*.gif;" +
"*.tif;*.ico;*.dxf;*.cgm;*.cdr;*.wmf;*.eps;*.emf|" +
"位图(*.bmp;*.jpg;*.png;...)|*.bmp;*.pcx;*.png;*.jpg;*.gif;*.tif;*.ico|" +
"矢量图(*.wmf;*.eps;*.emf;...)|*.dxf;*.cgm;*.cdr;*.wmf;*.eps;*.emf";
//设置对话框标题
openFileDialog.Title = "打开图像文件";
if ((bool)openFileDialog.ShowDialog())
{
originImage.Source = new BitmapImage(new Uri(openFileDialog.FileName));
}
}
else if (commond == "另存")
{
BitmapImage bitmapImage = targetImage.Source as BitmapImage;
Bitmap bitmap = HelpClass.BitmapImage2Bitmap(bitmapImage);
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Title = "保存为";
saveFileDialog.OverwritePrompt = true;
saveFileDialog.Filter = "BMP文件(*.bmp)|*.bmp|" + "Gif文件(*.gif)|*.gif|" + "JPEG文件(*.jpg)|*.jpg|" + "PNG文件(*.png)|*.png";
if ((bool)saveFileDialog.ShowDialog())
{
string fileName = saveFileDialog.FileName;
string strFileExtn = fileName.Remove(0, fileName.Length - 3);
switch (strFileExtn)
{
case "bmp":
bitmap.Save(fileName, ImageFormat.Bmp);
break;
case "jpg":
bitmap.Save(fileName, ImageFormat.Jpeg);
break;
case "gif":
bitmap.Save(fileName, ImageFormat.Gif);
break;
case "tif":
bitmap.Save(fileName, ImageFormat.Tiff);
break;
case "png":
bitmap.Save(fileName, ImageFormat.Png);
break;
default:
break;
}
}
}
else
{
this.Close();
}
}