Last updated May 18, 2020

    The contrast parameter increases or decreases the difference between the darkest and lightest tones in an image.

    API Pattern



    Parameter Description
    contrast Contrast of the output image.

    Parameter Values

    Value Description
    Integer A whole number between -100 and 100.
    Float Decimal number between -100.00 and 100.00.


    1. The default value is 0. This leaves the image unchanged.
    2. Valid values range from -100 to 100
    3. A value of -100 will generate a neutral gray image.


    Description HTML Demo
    Increase Contrast - Increase the contrast of the image by 25. <img src="image.jpg?contrast=25"/> Example
    Back to Top