将彩色照片变成黑白照片
小时候的一些照片都是黑白色的,现在的呢都是彩色,看多了五彩缤纷,反而觉得黑白更顺眼,颜色都是由(R(红色),G(绿色),B(蓝色))混合组成,分别在0-255之间,将(R+G+B)/3,形成的颜色就是黑白的了。
程序很简单
原图:
![](https://www.cnblogs.com/images/cnblogs_com/jillzhang/sqwasa2wqqw.JPG)
黑白:
程序很简单
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/// <summary>
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/// 将彩色图片变成黑白色的照片
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/// </summary>
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/// <param name="image">原来图片</param>
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/// <returns>返回的黑白照片</returns>
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public static Bitmap WhiteAndBlack(System.Drawing.Bitmap image)
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{
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//原来图片的长度
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int width = image.Width;
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//原来图片的高度
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int height = image.Height;
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//改变色素
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//横坐标
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for (int x = 0; x < width; x++)
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{
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//纵坐标
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for (int y = 0; y < height; y++)
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{
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//获得坐标(x,y)颜色
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Color color = image.GetPixel(x, y);
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//获得该颜色下的黑白色
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int value = (color.R + color.G + color.B) / 3;
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//设置颜色
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image.SetPixel(x,y,Color.FromArgb(value, value, value));
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}
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}
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return image;
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}
测试效果:![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/None.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockEnd.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/InBlock.gif)
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![](https://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockEnd.gif)
原图:
黑白:
作者:jillzhang
出处:http://jillzhang.cnblogs.com/
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。
出处:http://jillzhang.cnblogs.com/
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。