op_brightness

Adjust brightness. Decreases or increases the image brightness.

op_brightness= *adj*

Properties

Layer command. Applies to the current layer or to the composite image if layer=comp. Ignored by effect layers. CMYK images or layers are converted to RGB before the operation is applied.

Default

op_brightness=0, for no change of brightness.

Example

Darken the background of an image slightly to emphasize the foreground content:

http://server/myRootId/myImageId?wid=500&layer=0&maskUse=invert&op_brightness=-10&layer=1&src=myRootId/myImageId