This topic describes the parameters and examples to adjust the contrast for an image.
Parameters
Operation name: contrast
| Parameter | Description | Valid value |
|---|---|---|
| [value] | The contrast of the image. A greater value indicates higher contrast. | [-100, 100]
A value smaller than 0 indicates contrast lower than the original contrast. A value greater than 0 indicates contrast higher than the original contrast. |
Examples
- Adjust the contrast of the source image.
The URL used to process the image is in the following format:
<Source image URL>? x-oss-process=image/contrast,-50.
- Scale down an image to 200 px in width and adjust its contrast.
The URL used to process the image is in the following format:
<Source image URL>? x-oss-process=image/resize,w_200/contrast,-50
