动态看图像像素值的一个小程序

因为有时候需要动态的分析某个像素的RGB值，所以用了在pictureBox上的鼠标移动响应函数

private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
            bool pick;
            pick = true;    //设为TRUE可以开始读取像素点。
            if (flag == 1)//打开图片了
            {

                if (pick && e.X < myBitmap.Width && e.Y < myBitmap.Height)
                {
                   

                    textBox8.Text = e.X.ToString();
                    textBox9.Text = e.Y.ToString();
                    Color pixelColor = this.myBitmap.GetPixel(e.X, e.Y);
                    textBox1.Text = pixelColor.R.ToString();
                    textBox2.Text = pixelColor.G.ToString();
                    textBox3.Text = pixelColor.B.ToString();

                    int r, g, b;
                    r = pixelColor.R;
                    g = pixelColor.G;
                    b = pixelColor.B;
                   
                    textBox6.Text = pixelColor.GetHue().ToString();
                    double rgb;
                    rgb = r * 0.11 + g * 0.5 + b * 0.3;
                    textBox4.Text = rgb.ToString();
                  
                    float hue;
                    float brightness;
                    float saturation;
                    int max_int = getmaxrgb(pixelColor);
                    int min_int = getminrgb(pixelColor);
                    brightness = (float)max_int / (float)255;
                    if (max_int == min_int)
                        hue = saturation = 0;
                    else
                    {
                        float maxv = (float)max_int / (float)255;
                        float minv = (float)min_int / (float)255;
                        float dm = maxv - minv;
                        saturation = dm / maxv;

                        if (max_int == pixelColor.R)
                            hue = (float)(pixelColor.G - pixelColor.B) / (float)(max_int - min_int);
                        else if (max_int == pixelColor.G)
                            hue = (float)2 + (float)(pixelColor.B - pixelColor.R) / (float)(max_int - min_int);
                        else
                            hue = (float)4 + (float)(pixelColor.R - pixelColor.G) / (float)(max_int - min_int);

                        hue = hue * (float)60;

                        if (hue < 0.0)
                            hue = hue + (float)360;
                    }
                    int hsiH=(int)hue;
                    textBox5.Text = hsiH.ToString();
                    //后来才发现计算H值是可以直接调用函数
                }
            }
        }