COS uses the imageMogr2 API provided by CI to adjust the brightness of an image.
|download_url||URL of the input image, formatted as
|bright/&dxlt;value>||Adjusts the brightness of an image. The value must be an integer in the range of [−100, 100].
|/ignore-error/1||If this parameter is carried and the image failed to be processed because it is too large, the input image will be returned with no error reported.|
This example increases the brightness of an image by 70:
This example processes the image in the same way as in the example above except that a signature is added. The signature is joined with other processing parameters using an ampersand (&):
You can obtain the value of
<signature>by referring to Request Signature.