说明:
由于是以动画方式显示图像,这里没办法直接贴静态截图,因此决定给园友开源,将所有的可运行代码附在案例后面,由于所有的动画处理图像的对象放在都pictureBox控件中,同时定义的类都大同小异,因此这里先把下面案例中要用到的所有类及装载图像的代码给大家,运行时用这里的代码加下面任意一个实例的代码即可运行程序!
private Bitmap SourceBitmap; private Bitmap MyBitmap; private void button2_Click(object sender, EventArgs e) { //打开图像文件 OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Filter = "图像文件(JPeg, Gif, Bmp, etc.) |*.jpg;*.jpeg;*.gif;*.bmp;*.tif; *.tiff; *.png| |
一、以上下反转的方式显示图像.
原理:计算图像位置和高度后以高度的一半为轴进行对换上下半边的图像。
代码:
private void button1_Click(object sender, EventArgs e) { try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); for (int i = -width / 2; i <= width / 2; i++) { g.Clear(Color.Gray); int j = Convert.ToInt32(i * (Convert.ToSingle(height) / Convert.ToS |
二、以上下对接的方式显示图像
原理:首先将图像分为上下两部分, 然后分别显示。
代码:
private void button1_Click(object sender, EventArgs e) { try { int width = this.pictureBox1.Width; //图像宽度 int height = this.pictureBox1.Height; //图像高度 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); Bitmap bitmap = new Bitmap(width, height); int x = 0; while (x <= height / 2) { for (int i = 0; i <= width - 1; i++) { bitmap.SetPixel(i, x, MyBitmap.GetPixel(i, x)); } for (int i = 0; i <= width - 1; i++) { bitmap.SetPixel(i, height - x - 1, MyBitmap.GetPixel(i, height - x - 1)); } x++; this.panel1.Refresh(); g.DrawImage (bitmap,0,0); System.Threading.Thread.Sleep(10); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } |
三、以四周扩散的方式显示图像
原理:首先设置图像显示的位置, 然后按高度和宽度的比例循环输出, 直到高度和宽度为原始大小。
代码:
private void button1_Click(object sender, EventArgs e) { try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 //取得Graphics对象 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); //初始为全灰色 for (int i = 0; i <= width / 2; i++) { int j = Convert.ToInt32 (i*(Convert.ToSingle(height) / Convert.ToSingle(width))); Rectangle DestRect = new Rectangle(width / 2 - i, height/2-j, 2 * i, 2*j); Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height); g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel); System.Threading.Thread.Sleep(10); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } |
四、以分块效果显示图像
原理:首先将图分为几块, 再使用 Bitmap 类的 Clone方法从原图指定的块中复制图像,
最后将这些块依次显示出来便可。
代码:
private void button1_Click(object sender, EventArgs e) { Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.White); int width = MyBitmap.Width; int height = MyBitmap.Height; //定义将图片切分成四个部分的区域 RectangleF[] block ={ new RectangleF(0,0,width/2,height/2), new RectangleF(width/2,0,width/2,height/2), new RectangleF(0,height/2,width/2,height/2), new RectangleF(width/2,height/2,width/2,height/2)}; //分别克隆图片的四个部分 Bitmap[] MyBitmapBlack ={ MyBitmap.Clone(block[0],System.Drawing.Imaging.PixelFormat.DontCare), MyBitmap.Clone(block[1],System.Drawing.Imaging.PixelFormat.DontCare), MyBitmap.Clone(block[2],System.Drawing.Imaging.PixelFormat.DontCare), MyBitmap.Clone(block[3],System.Drawing.Imaging.PixelFormat.DontCare)}; //绘制图片的四个部分,各部分绘制时间间隔为0.5秒 g.DrawImage(MyBitmapBlack[0], 0, 0); System.Threading.Thread.Sleep(1000); g.DrawImage(MyBitmapBlack[1], width / 2, 0); System.Threading.Thread.Sleep(1000); g.DrawImage(MyBitmapBlack[3], width / 2, height / 2); System.Threading.Thread.Sleep(1000); g.DrawImage(MyBitmapBlack[2], 0, height / 2); } |
五、以淡入淡出效果显示图像
原理:使用 ImageAttrributes 类的 SetColorMatrix() 方法设置颜色, 调整矩阵实现淡出的效果. 此类还可以对颜色进行校正, 调暗, 调亮和移除等。
代码:
private void button1_Click(object sender, EventArgs e) { try { Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); int width = MyBitmap.Width; int height = MyBitmap.Height; ImageAttributes attributes = new ImageAttributes(); ColorMatrix matrix = new ColorMatrix(); //创建淡入颜色矩阵 matrix.Matrix00 = (float)0.0; matrix.Matrix01 = (float)0.0; matrix.Matrix02 = (float)0.0; matrix.Matrix03 = (float)0.0; matrix.Matrix04 = (float)0.0; matrix.Matrix10 = (float)0.0; matrix.Matrix11 = (float)0.0; matrix.Matrix12 = (float)0.0; matrix.Matrix13 = (float)0.0; matrix.Matrix14 = (float)0.0; matrix.Matrix20 = (float)0.0; matrix.Matrix21 = (float)0.0; matrix.Matrix22 = (float)0.0; matrix.Matrix23 = (float)0.0; matrix.Matrix24 = (float)0.0; matrix.Matrix30 = (float)0.0; matrix.Matrix31 = (float)0.0; matrix.Matrix32 = (float)0.0; matrix.Matrix33 = (float)0.0; matrix.Matrix34 = (float)0.0; matrix.Matrix40 = (float)0.0; matrix.Matrix41 = (float)0.0; matrix.Matrix42 = (float)0.0; matrix.Matrix43 = (float)0.0; matrix.Matrix44 = (float)0.0; matrix.Matrix33 = (float)1.0; matrix.Matrix44 = (float)1.0; //从0到1进行修改色彩变换矩阵主对角线上的数值 //使三种基准色的饱和度渐增 Single count = (float)0.0; while (count < 1.0) { matrix.Matrix00 = count; matrix.Matrix11 = count; matrix.Matrix22 = count; matrix.Matrix33 = count; attributes.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap); g.DrawImage(MyBitmap, new Rectangle(0, 0, width, height), 0, 0, width, height, GraphicsUnit.Pixel, attributes); private void button1_Click(object sender, EventArgs e) System.Threading.Thread.Sleep(200); count = (float)(count + 0.02); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } private void button3_Click(object sender, EventArgs e) { try { Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); int width = MyBitmap.Width; int height = MyBitmap.Height; ImageAttributes attributes = new ImageAttributes(); ColorMatrix matrix = new ColorMatrix(); //创建淡出颜色矩阵 matrix.Matrix00 = (float)0.0; matrix.Matrix01 = (float)0.0; matrix.Matrix02 = (float)0.0; matrix.Matrix03 = (float)0.0; matrix.Matrix04 = (float)0.0; matrix.Matrix10 = (float)0.0; matrix.Matrix11 = (float)0.0; matrix.Matrix12 = (float)0.0; matrix.Matrix13 = (float)0.0; matrix.Matrix14 = (float)0.0; matrix.Matrix20 = (float)0.0; matrix.Matrix21 = (float)0.0; matrix.Matrix22 = (float)0.0; matrix.Matrix23 = (float)0.0; matrix.Matrix24 = (float)0.0; matrix.Matrix30 = (float)0.0; matrix.Matrix31 = (float)0.0; matrix.Matrix32 = (float)0.0; matrix.Matrix33 = (float)0.0; matrix.Matrix34 = (float)0.0; matrix.Matrix40 = (float)0.0; matrix.Matrix41 = (float)0.0; matrix.Matrix42 = (float)0.0; matrix.Matrix43 = (float)0.0; matrix.Matrix44 = (float)0.0; matrix.Matrix33 = (float)1.0; matrix.Matrix44 = (float)1.0; //从1到0进行修改色彩变换矩阵主对角线上的数值 //依次减少每种色彩分量 Single count = (float)1.0; while (count > 0.0) { matrix.Matrix00 = (float)count; matrix.Matrix11 = (float)count; matrix.Matrix22 = (float)count; matrix.Matrix33 = (float)count; attributes.SetColorMatrix(matrix, ColorMatrixFlag.Default, ColorAdjustType.Bitmap); g.DrawImage(MyBitmap, new Rectangle(0, 0, width, height), 0, 0, width, height, GraphicsUnit.Pixel, attributes); System.Threading.Thread.Sleep(20); count = (float)(count - 0.01); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } }
六、以左右对接的方式显示图像
原理:首先将图像分为左右两部分, 然后分别显示。
代码:
private void button1_Click(object sender, EventArgs e) { //以左右对接方式显示图像 try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); //初始为全灰色 Bitmap bitmap = new Bitmap(width, height); int x = 0; while (x <= width / 2) { for (int i = 0; i <= height - 1; i++) { bitmap.SetPixel(x, i, MyBitmap.GetPixel(x, i)); } for (int i = 0; i <= height - 1; i++) { bitmap.SetPixel(width - x - 1, i, MyBitmap.GetPixel(width - x - 1, i)); } x++; this.panel1.Refresh(); g.DrawImage (bitmap,0,0); System.Threading.Thread.Sleep(10); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } |
七、以左右反转的方式显示图像
原理:计算图像位置和高度后以宽度的一半为轴进行对换左右半边的图像。
代码:
private void button1_Click(object sender, EventArgs e) { //以左右反转方式显示图像 try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); //初始为全灰色 for (int j = -height / 2; j <= height / 2; j++) { g.Clear(Color.Gray); //初始为全灰色 int i = Convert.ToInt32(j * (Convert.ToSingle(width) / Convert.ToSingle(height))); Rectangle DestRect = new Rectangle(width / 2 - i, 0, 2 * i, height); Rectangle SrcRect = new Rectangle(0, 0, MyBitmap.Width, MyBitmap.Height); g.DrawImage(MyBitmap, DestRect, SrcRect, GraphicsUnit.Pixel); System.Threading.Thread.Sleep(10); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } |
八、以从上向下拉伸的方式显示图像
原理:将图像的宽度不变每次显示图像的一部分,
直到将图片完全显示。
代码:
private void button1_Click(object sender, EventArgs e) { //以从上向下拉伸方式显示图像 try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 Graphics g = this.panel1.CreateGraphics(); g.Clear(Color.Gray); //初始为全灰色 for (int y = 1; y <= height; y++) { Bitmap bitmap=MyBitmap.Clone (new Rectangle(0,0,width ,y), System.Drawing .Imaging.PixelFormat .Format24bppRgb ); g.DrawImage (bitmap,0,0); System.Threading.Thread.Sleep(10); } } catch (Exception ex) { MessageBox.Show(ex.Message, "信息提示"); } } |
九、以从左向右拉伸的方式显示图像
原理:将图像的高度不变每次显示图像的一部分, 直到将图片完全显示。
代码:
private void button1_Click(object sender, EventArgs e) {//以从左向右拉伸方式显示图像try { int width = this.MyBitmap.Width; //图像宽度 int height = this.MyBitmap.Height; //图像高度 Graphics g = this.panel1.CreateGraphics();g.Clear(Color.Gray); //初始为全灰色 for (int x = 1; x <= width; x++) { Bitmap bitmap=MyBitmap.Clone (new Rectangle (0,0,x ,height), System.Drawing .Imaging.PixelFormat .Format24bppRgb ); g.DrawImage (bitmap,0,0); System.Threading.Thread.Sleep(10); } } catch (Exception ex){MessageBox.Show(ex.Message, "信息提示"); } } |
十、以任意角度旋转图像
原理:主要使用了 Graphics 类提供的 RotateTransform() 方法对图像进行旋转。
代码:
private void button1_Click(object sender, EventArgs e) { //以任意角度旋转显示图像 Graphics g = this.panel1.CreateGraphics(); float MyAngle = 0;//旋转的角度 while (MyAngle < 360) { TextureBrush MyBrush = new TextureBrush(MyBitmap); this.panel1.Refresh(); MyBrush.RotateTransform(MyAngle); g.FillRectangle(MyBrush, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height); MyAngle += 0.5f; System.Threading.Thread.Sleep(50); } } |
十一、以椭圆的方式显示图像
原理:主要使用了 Graphics 类提供的 FillEllipse() 方法和 TextureBrush() 方法。
代码:
十二、以不同的透明度显示图像.
原理:Graphics 类的 FromArgb() 方法。
代码:
private void button1_Click(object sender, EventArgs e) { //以不同的透明度显示图像 Graphics g = this.panel1.CreateGraphics(); g.SmoothingMode = SmoothingMode.AntiAlias; TextureBrush MyBrush = new TextureBrush(MyBitmap); g.FillRectangle(MyBrush, this.panel1.ClientRectangle); for (int i = 0; i < 255; i++) {//由透明变为不透明 g.FillRectangle(new SolidBrush(Color.FromArgb(i,Color.DarkS |
十三、以不同分辨率显示图像
原理:Bitmap 类的 SetResolution 方法。
代码:
private void button1_Click(object sender, EventArgs e) { //以不同的分辨率显示图像 Graphics g = this.panel1.CreateGraphics(); for (int i = 10; i < this.panel1.Height; i += 2) { g.Clear(Color.Gray); MyBitmap.SetResolution(i, i); g.DrawImage(MyBitmap, 0, 0); System.Threading.Thread.Sleep(100); } } |
十四、以不同翻转方式显示图像
原理:Bitmap 类的RotateFip()方法。
代码:
private void button1_Click(object sender, EventArgs e) { //以不同翻转方式显示图像 Graphics g = this.panel1.CreateGraphics(); for (int i = 0; i < 17; i++) { switch (i) { case 0: MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX); break; case 1: MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipNone); break; case 2: MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipX); break; case 3: MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipXY); break; case 4: MyBitmap.RotateFlip(RotateFlipType.Rotate180FlipY); break; case 5: MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipNone); break; case 6: MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipX); break; case 7: MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipXY); break; case 8: MyBitmap.RotateFlip(RotateFlipType.Rotate270FlipY); break; case 9: MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipNone); break; case 10: MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipX); break; case 11: MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipXY); break; case 12: MyBitmap.RotateFlip(RotateFlipType.Rotate90FlipY); break; case 13: MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipNone); break; case 14: MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipX); break; case 15: MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipXY); break; case 16: MyBitmap.RotateFlip(RotateFlipType.RotateNoneFlipY); break; } g.Clear(Color.White); g.DrawImage(MyBitmap, 0, 0); System.Threading.Thread.Sleep(1000); } }
private void button1_Click(object sender, EventArgs e) { //椭圆显示图像 this.panel1.Refresh(); Graphics g = this.panel1.CreateGraphics(); TextureBrush MyBrush = new TextureBrush(MyBitmap); g.FillEllipse(MyBrush, this.panel1.ClientRectangle); } |
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