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Bitmap bmp2 = (Bitmap)bmp.Clone();
int width = bmp2.Width;
int height = bmp2.Height;
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int bytes = width * height * 3;
byte[] rgbValues = new byte[bytes];
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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select * from Article_Content
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