ActionScript 2.0 Language Reference - Adobe Help and Support

Example
The following example shows how to apply pixel noise to a BitmapData object for both a
color and black-and-white bitmap.
import flash.display.BitmapData;
import flash.geom.Rectangle;
import flash.geom.Point;
var bitmapData_1:BitmapData = new BitmapData(100, 80, false, 0x00CCCCCC);
var bitmapData_2:BitmapData = new BitmapData(100, 80, false, 0x00FF0000);
var mc_1:MovieClip = this.createEmptyMovieClip("mc",
this.getNextHighestDepth());
mc_1.attachBitmap(bitmapData_1, this.getNextHighestDepth());
var mc_2:MovieClip = this.createEmptyMovieClip("mc",
this.getNextHighestDepth());
mc_2.attachBitmap(bitmapData_2, this.getNextHighestDepth());
mc_2._x = 101;
mc_1.onPress = function() {
bitmapData_1.merge(bitmapData_2, new Rectangle(0, 0, 50, 40), new
Point(25, 20), 128, 0, 0, 0);
}
mc_1.onPress = function() {
bitmapData_1.noise(128, 0, 255, 1, true);
}
mc_2.onPress = function() {
bitmapData_2.noise(128);
}
paletteMap (BitmapData.paletteMap method)
public paletteMap(sourceBitmap:BitmapData, sourceRect:Rectangle,
destPoint:Point, [redArray:Array], [greenArray:Array], [blueArray:Array],
[alphaArray:Array]) : Void
Remaps the color channel values in an image that has up to four arrays of color palette data,
one for each channel.
Flash Player uses the following steps to generate the resulting image:
328 ActionScript classes