The color of an image includes the brightness, contrast, and sharpness. Dynamic Route for CDN (DCDN) allows you to change the brightness, contrast, and sharpness of images stored on DCDN nodes. This topic describes how to change the color of images and provides examples of how to change the color of images.

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The following table describes the parameters.
Feature Description Parameter Example
Brightness Set the brightness of images. Valid values: -100 to 100. bright image_process=bright,50
Contrast Set the contrast of images. Valid values: -100 to 100. contrast image_process=contrast,50
Sharpness Set the sharpness of images. Valid values: 50 to 399. We recommend that you use the following values: 50, 100, 150, 200, 250, and 300. sharpen image_process=sharpen,100