brt curve adjust

brightness curve adjust

what is it?

brightness curve adjust is an iMovie plug-in that lets you exert photoshop-level control over brightness in you clips.

a pixel's brightness is determined by it's composition of red, green, and blue values. a perfect digital image has a linear brightness range running straight from zero to 255. however, most devices (and especially photo paper) do not perceive brightness in a linear fashion. because of their non-linear sensitivity to light, a picture's brightness curve can become distorted. this plug-in can either distort, or repair, a clip's brightness curve.

brightness curve adjust sports one 256 by 256 array for individual brightness settings, plus pre-set and calculation routines (and the ability to load from or save your pre-sets to disk)

note:
brightness curve adjust is more powerful, but less intuitive to use than it's brother plug-in, “brightness equalizer”. if your main goal is to adjust a digital clip to normal film media brightness behavior, you should use our brightness equalizer plug.

what should i use it for?
use this plug to fine-tune brightness, to make a clip behave like it was shot on photo paper, or to correct brightness issues that you may have with the original clip.

features

one 256 band graphical brightness array
edit the brightness array interactively by simply clicking the mouse
get live feedback for all your changes while you edit the curve
pre-sets: linear, inverse, n-step (up/down), bell curve (normal, inverted), hyperbolic (4 variants), level, s-curve (normal, inverted)
parametric pre-sets: you control how the preset calculates the values
load and save any setting to disk as an editable text file
choose reference color
reference color displayed in as reference line
master f/x to mix result with original
HD compatibility

standard features

full-size preview window
interactively define area of effect using the mouse
effect fade-in and fade-out
choose color using either color picker or simply select by pointing into clip