📄 用c#实现的图象处理（源代码）------正在更新中！ - lijigang1982的专栏 - csdnblog.htm
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e)<BR> {<BR> Graphics g = this.CreateGraphics ( )
;<BR> g.Clear(this.BackColor);<BR> Color c1
=new
Color();<BR>
Color c2 =new Color();<BR> Color c3 =new
Color();<BR> Color c4 =new Color();<BR> Bitmap
box1= new Bitmap(pictureBox1.Image);<BR> for (int
i=0;i<this.pictureBox1.Image.Width-2;i++)<BR> {<BR> for
(int
j=0;j<this.pictureBox1.Image.Height-2;j++)<BR> {<BR> c1=box1.GetPixel(i,j);<BR> c2=box1.GetPixel(i+1,j+1);<BR>
c3=box1.GetPixel(i+1,j);<BR> c4=box1.GetPixel(i,j+1);<BR> int
rr=Math.Abs(c1.R-c2.R)+Math.Abs(c3.R-c4.R)+128;<BR> if(rr<0)
rr=0;<BR> if(rr>255)
rr=255;<BR> int
gg=Math.Abs(c1.G-c2.G)+Math.Abs(c3.G-c4.G)+128;<BR> if(gg<0)
gg=0;<BR> if(gg>255)
gg=255;<BR> int
bb=Math.Abs(c1.B-c2.B)+Math.Abs(c3.B-c4.B)+128;<BR> if(bb<0)
bb=0;<BR> if(bb>255)
bb=255;<BR> Color c =
Color.FromArgb(rr,gg,bb);<BR> box1.SetPixel(i,j,c);<BR> }<BR> pictureBox1.Refresh();<BR> pictureBox1.Image=box1;<BR> }<BR> g.Dispose();<BR> }</P>
<P> private void menuItem9_Click(object sender, System.EventArgs
e)<BR> {<BR>// this.pictureBox2.Visible=false;<BR>// this.label2.Visible=false;<BR>
Bitmap box1= new Bitmap(pictureBox1.Image);<BR> Graphics
g = this.CreateGraphics ( )
;<BR> g.Clear(this.BackColor);<BR> Matrix X =
new Matrix ( )
;<BR> //创建Matrix实例<BR> X.Translate ( 100,100 )
;
<BR> //调用Matrix实例的Translate方法，并以此方法作用于Matrix实例<BR> g.Transform
= X ;<BR> //设定图片效果<BR> g.DrawImage ( box1 ,
<BR> new Rectangle ( this.pictureBox1.Width , 0 ,
box1.Width , box1.Height ) , <BR> 0 ,0 ,
box1.Width , <BR> box1.Height ,
<BR> GraphicsUnit.Pixel ) ;
<BR> X.Dispose ( ) ;<BR> g.Dispose ( )
;<BR> }</P>
<P> private void menuItem24_Click(object sender, System.EventArgs
e)<BR> {
<BR> //先把要处理的东西绘制到图象控件上,再在完成了所有的绘图操作后,把图象控件整个<BR> //转给picturebox1控件,就是这个思路!<BR> Graphics
g =
this.CreateGraphics();<BR> g.Clear(this.BackColor);<BR>
Bitmap bitmap=new Bitmap(pictureBox1.Image);<BR> Bitmap
bitmap1=new
Bitmap(pictureBox1.Width,pictureBox1.Height);<BR> Graphics g1=
Graphics.FromImage(bitmap1);<BR> float[][] ptsArray ={
<BR> new float[] {1, 0, 0,
0, 0},<BR> new float[] {0,
1, 0, 0, 0},<BR> new
float[] {0, 0, 1, 0,
0},<BR> new float[] {0, 0,
0, 0.5f, 0},
//注意：此处为0.1f，图像为强透明<BR> new
float[] {0, 0, 0, 0, 1}}; <BR>// MessageBox.Show("当前透明度设置为："+
ptsArray[3][3]*100 + "%");<BR>
Form3 newform3 = new
Form3();<BR> newform3.trackBar1.SetRange(10,100);<BR> newform3.trackBar1.SmallChange=10;<BR> newform3.label1.Text="10";<BR> newform3.label3.Text="100";<BR> newform3.trackBar1.Value=50;<BR> newform3.label2.Text="";<BR> newform3.Text="设置透明度";<BR> newform3.ShowDialog(this);//注意一定不能把newform3的属性设置放在此句后，否则……
<BR> ptsArray[3][3]=(float)newform3.trackBar1.Value/100;<BR> ColorMatrix
clrMatrix = new ColorMatrix(ptsArray);<BR> ImageAttributes
imgAttributes = new
ImageAttributes();<BR> //设置图像的颜色属性<BR> imgAttributes.SetColorMatrix(clrMatrix, ColorMatrixFlag.Default,
<BR> ColorAdjustType.Bitmap);<BR> //画图像<BR> g1.DrawImage(bitmap,
new Rectangle(0, 0, bitmap.Width, bitmap.Height), <BR> 0,
0, bitmap.Width, bitmap.Height,<BR> GraphicsUnit.Pixel,
imgAttributes);<BR> this.pictureBox1.Image=bitmap1;<BR> g.Dispose();<BR> newform3.Dispose();<BR> }</P>
<P> private void menuItem10_Click(object sender, System.EventArgs
e)<BR> {<BR> <BR> }</P>
<P> private void menuItem13_Click(object sender, System.EventArgs
e)<BR> {<BR> Graphics g = this.CreateGraphics ( )
;<BR> g.Clear(this.BackColor);<BR> Bitmap
BmpTemp= new Bitmap(pictureBox1.Image);<BR> Matrix X = new
Matrix ( ) ;<BR> //创建Matrix实例<BR> X.Scale (
(float)0.5 ,1 , MatrixOrder.Append )
;<BR> //调用Matrix实例的Scale方法，并以此方法作用于Matrix实例<BR> g.Transform
= X ; <BR> g.DrawImage ( BmpTemp ,
<BR> new Rectangle ( 10 ,250 , 200 , 200 ) ,
<BR> 0 , 0 , BmpTemp.Width ,
<BR> BmpTemp.Height ,
<BR> GraphicsUnit.Pixel ) ;
<BR> X.Dispose ( ) ;<BR> g.Dispose ( )
;<BR> //清除资源 <BR> <BR> }</P>
<P> private void pictureBox1_SizeChanged(object sender,
System.EventArgs
e)<BR> {<BR>// pictureBox2.Location=new
Point(this.pictureBox1.Width,this.pictureBox1.ClientRectangle.Y);<BR> }</P>
<P> private void menuItem25_Click(object sender, System.EventArgs
e)<BR> {<BR> Graphics g=
this.CreateGraphics();<BR>
g.Clear(this.BackColor);<BR> this.pictureBox1.Image=m_copybitmap;<BR> g.Dispose();<BR> }<BR> <BR> }<BR>}<BR></P>
<P></P><BR><BR>
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lijigang1982发表于 2005年10月22日 22:33:00 </DIV></DIV><LINK
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