Page 130
Quick Nav Bar
<<   Previous Contents
Selection
Op Index
Parent User Notes
Index
Glossary
Next   >>


Minimum

Quick Reference to Scripting Command
a=MINIMUM(MODE[0-6],AFFECT ONLY ALPHA or REPLACE ALPHA)
Items in CAPS are 0/1 switches or switches with more options than 0/1.


Operation Example
Minimum scans on a pixel-by-pixel basis. At each pixel, the surrounding eight pixels are scanned for a minimum value of a particular type (more below). The color of the minimum pixel is then put in place of that pixel. The above minimum was taken based on luma.

Tip:

...a little something from the propeller-heads at Black Belt Systems
This operation tends to show a rectangular growth of image regions. For this reason, normally, it is useful to apply only once or twice, unless you are looking for a rectangular-looking result.


Minimum Operation Dialog

Mimimum Controls

Channel

These radio buttons allow you to choose the criteria by which the minimum is determined. Choosing the red, for example, will compare each surrounding pixel by their red value. The surrounding pixel with the lowest red value will hold the values for replacement. These pixels can be compared by:

Affect Only Alpha

This option is available to you only when the operator is set to compare based on alpha. If this box is checked, only the alpha channel of the image will be changed. If this box is unchecked, red green and blue information will also be replaced.

Replace Alpha

This option is available to you only when the operator is not set to compare based on alpha. If this box is checked, the alpha information will be changed on replacement. If this box is not checked, the alpha channel of the image will not be changed.

Trend

Some of the controls have a Trend button next to them. These trend buttons allow you to set variables over a series of frames. Each frame of any animation may 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. Trend graphs have equidistantly spaced vertical lines. For animations under 100 frames in length, each of these lines represents a frame in the animation. The number of frames in any one sequence can be altered using the Sequence controls item from 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.


Quick Nav Bar
<<   Previous Contents
Selection
Op Index
Parent User Notes
Index
Glossary
Next   >>
Page 130

WinImages F/x, WinImages 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 5, Level B

HTML Documentation Management System © 1992-2007 Black Belt Systems