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Documentation

Contrast

Description

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

API Pattern

contrast={value}

Parameter

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.

Notes

  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.

Examples

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