Win8Metro(C#)数字图像处理--2.5图像亮度调整

Win8 Metro 图像亮度调整

最新推荐文章于 2022-08-31 17:14:42 发布

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最新推荐文章于 2022-08-31 17:14:42 发布

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文章标签：人工智能 c#

本文介绍了一个用于Win8 Metro界面的C#图像亮度调整函数。该函数通过指定的亮度值来调整图像的亮度，并提供了详细的实现代码，适用于希望在Win8 Metro应用中进行图像处理的开发者。

原文: Win8Metro(C#)数字图像处理--2.5图像亮度调整

2.5图像亮度调整函数

[函数名称]

图像亮度调整函数BrightnessAdjustProcess(WriteableBitmap src, intbrightnessValue)

[函数代码]

///<summary>

/// Bright adjust process.

///</summary>

///<param name="src">Source image.</param>

///<param name="brightnessValue">Brightness value, from -255 to 255.</param>

///<returns></returns>

publicstaticWriteableBitmap BrightnessAdjustProcess(WriteableBitmap src, int brightnessValue)////5亮度调整

{

if(src!=null )

{

int w = src.PixelWidth;

int h = src.PixelHeight;

WriteableBitmap brightImage =newWriteableBitmap(w,h);

byte[] temp = src.PixelBuffer.ToArray();

for (int i = 0; i < temp.Length; i += 4)

{

temp[i] = (byte)(((brightnessValue + temp[i]) > 255 ? 255 : (brightnessValue + temp[i])) < 0 ? 0 : ((brightnessValue + temp[i]) > 255 ? 255 : (brightnessValue + temp[i])));

temp[i+1] = (byte)(((brightnessValue + temp[i+1]) > 255 ? 255 : (brightnessValue + temp[i+1])) < 0 ? 0 : ((brightnessValue + temp[i+1]) > 255 ? 255 : (brightnessValue + temp[i+1])));

temp[i+2] = (byte)(((brightnessValue + temp[i+2]) > 255 ? 255 : (brightnessValue + temp[i+2])) < 0 ? 0 : ((brightnessValue + temp[i+2]) > 255 ? 255 : (brightnessValue + temp[i+2])));

}

Stream sTemp = brightImage.PixelBuffer.AsStream();

sTemp.Seek(0, SeekOrigin.Begin);

sTemp.Write(temp, 0, w * 4 * h);

return brightImage;

}

else

{

returnnull;

}