Adjust image brightness/contrast/saturation Permits you to simultaneously adjust an image's brightness, contrast and saturation. This is useful for achieving a variety of color effects. Cycling '74 Jitter Jitter Colorspace Jitter Special FX in TEXT_HERE TEXT_HERE out TEXT_HERE dumpout TEXT_HERE char Brightness Brightness (default = 1.) Values below 1. (to 0.) reduce brightness, while values above 1. increase it. 1. represents no change. Contrast Contrast (default = 1.) Values below 1. (to 0.) decrease contrast, bringing the image closer to grey (which represents the average luminance of the image frame). Values above 1.0 increase contrast. 1.0 represents no change. Negative values affect a color inversion, but with similar results. Saturation Saturation (default = 1.) Values below 1. (to 0.) decrease saturation, bringing the image closer to greyscale. Values above 1. increase saturation. 1. represents no change. Negative values affect a color inversion, but with similar results.