下面是经典的锐化代码。我换了一个高通滤波器后还是太夸张了。能不能做到像可牛影像那样的锐化？
private
void button1_Click(object sender, EventArgs e)
{
//以锐化效果显示图像
try
{
int Height
= this.pictureBox1.Image.Height;
int Width
= this.pictureBox1.Image.Width;
Bitmap newBitmap =
new Bitmap(Width, Height);
Bitmap oldBitmap = (Bitmap)this.pictureBox1.Image;
Color pixel;
//拉普拉斯模板
int[] Laplacian
={ -1,
-1,
-1,
-1,
9, -1,
-1,
-1,
-1 };
for (int x
= 1; x
< Width
- 1; x++)
for (int y
= 1; y
< Height
- 1; y++)
{
int r
= 0, g
= 0, b
= 0;
int Index
= 0;
for (int col
= -1; col
<=
1; col++)
for (int row
= -1; row
<=
1; row++)
{
pixel = oldBitmap.GetPixel(x
+ row, y
+ col); r += pixel.R
* Laplacian[Index];
g += pixel.G
* Laplacian[Index];
b += pixel.B
* Laplacian[Index];
Index++;
}
//处理颜色值溢出
r = r
>
255 ?
255 : r;
r = r
< 0
? 0 : r;
g = g
> 255
? 255 : g;
g = g
< 0
? 0 : g;
b = b
> 255
? 255 : b;
b = b
< 0
? 0 : b;
newBitmap.SetPixel(x -
1, y
- 1, Color.FromArgb(r, g, b));
}
this.pictureBox1.Image
= newBitmap;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "信息提示");
}
}
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