Method to convert an image to a CMYK color space and examine the intensities of one of the CMYK color channels.

方法将图像转换为CMYK颜色空间，并查看其中一个CMYK颜色通道的亮度。

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We select HLS color space to present both the light intensity and the spectral information, then convert the HLS color space to the RGB color space and display the sample image with 24-bit color map.

我们选取HLS颜色空间来共同显现光强信息和光谱信息，最后将HLS颜色空间转化为rgb颜色空间通过24位的彩色位图显示样品图像。

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