我一直在尝试将从相机输入捕获的位图转换为矢量,然后将矢量点转换为数组以供以后使用。
但是我在 Flash 中找不到任何此类功能,因此我一直在尝试使用Corey O'Neil创建的“矢量化包” 。这似乎有效,但无法删除我的位图上的白色背景(我正在捕捉一张带有线条的纸张图片)。即使手动执行此操作并使背景透明仍然不会产生任何结果。
这是我的代码:
public class DocumentRich extends MovieClip{
public var initBox2D:Main;
var cam:Camera = Camera.getCamera();
var vid:Video = new Video(420, 300);
var myVector:Vectorize;
public function DocumentRich()
{
if(stage){
initBox2D = new Main();
addChild(initBox2D);
//addChild(new movieMonitor());
}
addEventListener(MouseEvent.CLICK, clickHandler, false, 0, true);
StartAnim();
}
function StartAnim():void
{
//SET UP WORLD
initBox2D.isDebugMode(false);
initBox2D.mouseDragEnabled(true);
Main.world.SetGravity(new b2Vec2(0,0));
cam.setQuality(0, 100);
cam.setMode(420, 300, 30, true);
trace(cam.height);
vid.attachCamera(cam);
addChild(vid);
addChild(go);
}
function clickHandler(m:MouseEvent){
trace(m.target.name);
switch(m.target.name){
case 'go':
goButtonFun();
break;
}
}
function goButtonFun():void{
var screenShot:BitmapData = new BitmapData(cam.width, cam.height);
var screenShot_image:Bitmap=new Bitmap(screenShot);
screenShot.draw(vid) ;
ReduceColors.reduceColors(screenShot, 0, true, false);
screenShot.colorTransform(new Rectangle(0, 0, screenShot.width, screenShot.height), new ColorTransform(2,2,2,1) );
///// --------- MAY NOT NEED THIS ----------- ////////////
for(var i:int = 0; i<screenShot.width; i++)
{
for(var j:int = 0; j<screenShot.height; j++)
{
if(screenShot.getPixel(i,j) == 0xffffff)
{
var transparent:uint = 0x00000000;
screenShot.setPixel32(i, j, transparent);
}
}
}
myVector = new Vectorize(screenShot_image, 23, 2, 1, 3, 0xFFFFFF);
myVector.addEventListener(Vectorize.INIT, traceStatus);
myVector.addEventListener(Vectorize.DESPECKLE_START, traceStatus);
myVector.addEventListener(Vectorize.DESPECKLE_COMPLETE, traceStatus);
myVector.addEventListener(Vectorize.GROUPING_START, traceStatus);
myVector.addEventListener(Vectorize.GROUPING_COMPLETE, traceStatus);
myVector.addEventListener(Vectorize.EDGING_START, traceStatus);
myVector.addEventListener(Vectorize.EDGING_COMPLETE, traceStatus);
myVector.addEventListener(Vectorize.DESPECKLE_PROGRESS, traceProgress);
myVector.addEventListener(Vectorize.GROUPING_PROGRESS, traceProgress);
myVector.addEventListener(Vectorize.EDGING_PROGRESS, traceProgress);
myVector.addEventListener(Vectorize.COMPLETE, showVector);
myVector.vectorize();
//addChild(screenShot_image);
addChild(go);
removeChild(vid);
cam = null;
vid.attachCamera(null);
vid = null;
}
function traceStatus(event:Event):void
{
trace(event.type);
}
function traceProgress(event:Event):void
{
var progress:int = event.target.percentDone * 100;
trace(event.type + ": " + progress + "%");
}
function showVector(event:Event):void
{
trace(event.type);
addChild(myVector);
}
}
有什么建议么?
谢谢。
更新: 抱歉有任何混淆,基本上我想要一种跟踪透明位图的方法,并在所述位图中获取形状点的数组。像素数据数组太大了......我想要一个矩形的 4 个点,不管它的大小......