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16.101 - Contrast
|Quick Reference to Scripting Command|
|Items in CAPS are 0/1 or ranges with more options than just 0/1.|
Ranges other than 0/1 are indicated by brackets, such as [0-2].
Contrast can be considered the difference between light and dark regions in an image. When the contrast is increased the lighter regions will become darker, and the darker regions will become lighter. Decreasing the contrast will make the difference between light and dark regions much less.
The contrast operation in F/x is based on a center luma value of 128. If a pixel has a value lower than 128 it will be considered dark, and values greater than 128 will be considered light.
16.101.1 - Contrast Controls
220.127.116.11 - Trends
Operator dialog controls that have a Trend button next to them offer animation functionality. Trend allows you to set that variable over a set of frames. Each frame of the animation can be thought of as a slice of time. The trends allow you to alter some, all, or none of the variables for a particular time slice. Variables that have multiple states can be set to any of a number of values in the trend. Variables that are either on or off can only have an on or off value in the trend. You will notice that the trend graphs have equidistantly spaced vertical lines. Each of these lines represents a frame in the animation. The number of frames can be altered using Sequence controls... in the TimeLine pull down menu. Animation lengths of 100 - 999 frames will be represented with a vertical bar being 10 frames, and animation length greater than 1000 frames will have a vertical bar for every 100 frames. Click here to view more information on Trends.
18.104.22.168 - Contrast
The contrast settings can be altered by using the slide gadget, or by clicking on the text entry field and entering the appropriate value. The contrast operation defaults to 100 which is the maximum contrast change. The contrast can range from -100 to 100. Setting the contrast to 0 will cause no change to the image.
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WinImages F/x, Morph and all associated documentation
Copyright © 1992-2007 Black Belt Systems ALL RIGHTS RESERVED Under the Pan-American Conventions
WinImages F/x Manual Version 7, Revision 6, Level A
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