Adjust brightness, contrast, and sharpness - Edge Security Acceleration

Adjust the brightness, contrast, and sharpness of images on ESA to correct colors, fix blurriness, and improve visual clarity.

The following parameters control image brightness, contrast, and sharpness.

Parameter	Description	Value
bright	Adjusts the brightness of the image.	The value range is [-100, 100]. A value less than 0 decreases the brightness. A value of 0 has no effect on brightness. A value greater than 0 increases the brightness.
contrast	Adjusts the contrast of the image.	The value range is [-100, 100]. A value less than 0 decreases the contrast. A value of 0 has no effect on contrast. A value greater than 0 increases the contrast.
sharpen	Controls the intensity of the sharpening effect.	The value range is [50, 399]. Higher values produce a sharper image. Excessive values may cause artifacts or distortion. For best results, use one of the following recommended values: 50, 100, 150, 200, 250, or 300.

To sharpen the base image with a value of 100: http(s)://example.com/image01.png?image_process=sharpen,100
To increase image brightness by 50: http(s)://example.com/image01.png?image_process=bright,50
To increase image contrast by 50: http(s)://example.com/image01.png?image_process=contrast,50