| 摘要 |
Converting a digital image from color to gray-scale. In one example embodiment, a method for converting a digital image from color to gray-scale is disclosed. First, an unconverted pixel having red, green, and blue color channels is selected from the color digital image. Next, the red color channel of the pixel is multiplied by alpha. Then, the green color channel of the pixel is multiplied by beta. Next, the blue color channel of the pixel is multiplied by gamma. Then, the results of the three multiplication operations are added together to arrive at a gray-scale value for the pixel. Finally, these acts are repeated for each remaining unconverted pixel of the color digital image to arrive at a gray-scale digital image. In this example method, alpha+beta+≈1 and alpha>beta.
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