Brightness

Function
This function is simply a multiplier on the RGB channels. It differs from Fade in that Fade effects the Alpha channel as well. If you want individual channel control, use Mult.

You can also use this to convert your image to a single channel alpha image by using a brightness of 0.

Parameters
Type
Defaults
Function
value
float
1

The brightness factor. Greater than 1 increases brightness, less than 1 darkens it. A value of 0 means complete black, and will in fact reduce your image to a single channel alpha image.


Synopsis

image Brightness( image, float value);


Script

image = Brightness( image, value);


Command Line

shake -brightness value


Examples

shake lisa.iff -bri .2
shake lisa.iff -bri 2
shake lisa.iff -bri "Linear(0,0@1,3@20)" -t 1-20

See Also
Mult, Fade