Sharpen

      Last updated May 18, 2020

    The sharpen parameter increases the definition of the edges of objects in an image.

    API Pattern

    sharpen=a{value},r{value},t{value}

    Parameter

    Parameter Description
    sharpen Sharpness of the output image.

    Parameter Values

    Value Units Description
    a{value} Float Amount - Decimal number between 0 and 10.
    r{value} Float Radius - Decimal number between 1 and 1000.
    t{value} Integer Threshold - whole number between 0 and 255.

    Notes

    1. The sharpen parameter is an implementation of an unsharp mask.

    Examples

    Description HTML Demo
    Increase Sharpness - Increase the sharpness of the image by amount:5, radius:2, and threshold:0. <img src="image.jpg?sharpen=a5,r2,t0"/> Example
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