Win8 Metro(C#)数字图像处理--2.46图像RGB分量增强效果

来源：互联网发布：超融合云计算编辑：程序博客网时间：2024/05/22 15:50

[函数名称]

RGB分量调整 RGBAdjustProcess(WriteableBitmap src, int value,int threshould)

[算法说明]

RGB分量调整实际上是分别对每个像素的RGB三个分量进行调整，公式如下：

[函数代码]

        /// <summary>        /// R,G,B value adjusting.        /// </summary>        /// <param name="src">The source image.</param>        /// <param name="value">To judge which one to adjust, R is 3, G is 2, B is 1.</param>        /// <param name="threshould">It is a value to adjust the result image.</param>        /// <returns></returns>        public static WriteableBitmap RGBAdjustProcess(WriteableBitmap src, int value,int threshould)////41 RGB分量调整         {            if (src != null)            {                int w = src.PixelWidth;                int h = src.PixelHeight;                WriteableBitmap srcImage = new WriteableBitmap(w, h);                byte[] temp = src.PixelBuffer.ToArray();                if (value == 1)                {                    for (int i = 0; i < temp.Length; i += 4)                    {                        temp[i] = (byte)(Math.Max(0, Math.Min((temp[i] + threshould), 255)));                    }                }                if (value == 2)                {                    for (int i = 0; i < temp.Length; i += 4)                    {                        temp[i + 1] = (byte)(Math.Max(0, Math.Min((temp[i + 1] + threshould), 255)));                    }                }                if (value == 3)                {                    for (int i = 0; i < temp.Length; i += 4)                    {                        temp[i + 2] = (byte)(Math.Max(0, Math.Min((temp[i + 2] + threshould), 255)));                    }                }                Stream sTemp = srcImage.PixelBuffer.AsStream();                sTemp.Seek(0, SeekOrigin.Begin);                sTemp.Write(temp, 0, w * 4 * h);                return srcImage;            }            else            {                return null;            }        }

0 0