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bmp = new Bitmap(Application.StartupPath + "\\1.jpg");
            Bitmap bmp2 = (Bitmap)bmp.Clone();
            int width = bmp2.Width;
            int height = bmp2.Height;
            Rectangle rect = new Rectangle(0, 0, width, height);
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            Marshal.Copy(ptr, rgbValues, 0, bytes);
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            double colorTemp = 0;
            for (int i = 0; i < bytes; i += 3)
            {
                colorTemp = rgbValues[i + 2] * 0.299 + rgbValues[i + 1] * 0.587 + rgbValues[i] * 0.114;
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