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<< 3.3 Effects & Tuning >>
The BlackMagic palettes are optimized for optimal colour reproduction in the category each of these represent. Each of the colours generated by these palettes is further "auto parameterized" dynamically, when being applied to the image, in terms of their hue, saturation, intensity, opacity, contrast, and brightness. Even so, the professional version of the software allows for further tuning of some parameters (post auto parameterization) by the user. This facility is provided through the "Effects & Tuning" panel (below).
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The Effects & Tuning panel provides controls to fine-tune any of the colours/ palettes selected from the Colour/ Palette Selection pop-up Menu. The Neural-net based palettes accessed from the Colour/ Palette Selection Menu are pre-configured to generate life-like rendering based on the TimeBrush RLC technology and the image content; still, there can be times when you want to slightly modify the tones these palettes generate - say, may be to make the Skin-tones a bit more or less red, etc. Controls on the "Effects & Tuning" panel provide the mechanism for doing this. Each of the controls works by 'dragging' the corresponding Track-bar to the right of center (increase) or to the left of center (decrease). Each of the five components may be varied individually; the net effect of all subsequent renderings on the image is a combination of all the controls. The Red, Green, and Blue components may additionally and individually be 'inversed'. Combined with the Neural Net based TimeBrush RLC palettes, this allows for very powerful and interesting colourization possibilities.
Note that in some cases, the effect of varying the above controls can be quite dramatic; so please use with caustion. Of course, the controls need to be used in conjunction with a rendering tool selected from the "Tools" panel, and in most cases, along with a palette selected from the Colour Selection Menu.
Gray varies the gray-scale of the original loaded image, allowing for control of brightness in desired parts of the image.
Red varies the red-channel component in the selected palette; if the corresponding 'invert' check-box is checked, it reverses the channel value as well.
Green varies the green-channel component in the selected palette; if the corresponding 'invert' check-box is checked, it reverses the channel value as well.
Blue varies the blue-channel component in the selected palette; if the corresponding 'invert' check-box is checked, it reverses the channel value as well.
Dominant varies one of the Red, Green, or Blue channels, whichever is the dominant channel out of these, after computing the effect of all other controls.
"Re-set all" RESETS all controls to their default state; this is also executed whenever a new image is loaded.
It should be noted that varying the gray as well as the RGB channels above does not correspond to the traditional sense of varying these values. Within the TimeBrush RLC palettes' context, the variations are applied based on a non-linear Neural Net controlled function, which provides for more interesting effects. If used in conjunction with one of the Neural Net palettes, the colours rendered after applying above controls will demonstrate the 'depth' advantage typical of the TimeBrush RLC palettes.
For a better understanding of these controls, please experiment with various combinations on a rough photo image that has sufficient gray-scale variations.
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