Changeset 17558 for lang/actionscript/ashaardetect/trunk/cv/HaarCascade.as

Timestamp:

08/13/08 00:51:51 (5 months ago)

Author:

gyuque

Message:

updated and added sample

Files:

• lang/actionscript/ashaardetect/trunk/cv/HaarCascade.as (modified) (9 diffs)

lang/actionscript/ashaardetect/trunk/cv/HaarCascade.as

@@ -19 +19 @@
                 private var mSpecificityList:Array;
 
+                private var mSourceWindow:IntRect = null;
+
                                 function HaarCascade()
                 {
@@ -32 +34 @@
                 {
                         return mSpecificityList;
+                }
+
+                public function setSourceWindow(x:int, y:int, w:int, h:int):void
+                {
+                        if (!mSourceWindow)
+                                mSourceWindow = new IntRect();
+
+                        mSourceWindow.x = x;
+                        mSourceWindow.y = y;
+                        mSourceWindow.w = w;
+                        mSourceWindow.h = h;
                 }
 
@@ -93 +106 @@
                                 mYieldContext.res  = null;
                                 mYieldContext.factor = 1;
-                                mYieldContext.sumimage = new SumImage(bmp);
+                                if (mSourceWindow)
+                                        mYieldContext.sumimage = new SumImage(bmp, true, mSourceWindow.y, mSourceWindow.h);
+                                else
+                                        mYieldContext.sumimage = new SumImage(bmp, true);
+
                                 mYieldContext.Hsumimage = null;
                                 mYieldContext.mask_index = 1;
@@ -107 +124 @@
                         var pass:uint = 0;
 
+                        var ox:int = 0;
+                        var oy:int = 0;
+
                         mSumRaw = sums.raw;
                         mSumW = sums.width;
@@ -112 +132 @@
                         var srcWidth:uint = bmp.width;
                         var srcHeight:uint = bmp.height;
+
+                        if (mSourceWindow) {
+                                srcWidth  = mSourceWindow.w;
+                                srcHeight = mSourceWindow.h;
+                                ox = mSourceWindow.x;
+                                oy = mSourceWindow.y;
+                        }
+
                         var winWidth:uint;
                         var winHeight:uint;
@@ -123 +151 @@
 
                         for( ; factor*Number(width)  < (srcWidth  - 10) &&
-                                 factor*Number(height) < (srcHeight - 10);
+                                 factor*Number(height) < (srcHeight - 20);
                                 factor *= scale_factor, ++mask_index )
                         {
@@ -169 +197 @@
 
                                                 var _ix:uint, _xstep:uint = 1;
-                                                iy = int((_iy*ystep) + 0.5);
+                                                iy = int((_iy*ystep) + 0.5) + oy;
                                                 iyp = iy * mSumW;
 
@@ -175 +203 @@
                                                 for( _ix = 0; _ix < stop_width; _ix += _xstep )
                                                 {
-                                                        var ix:int = _ix*ystep; // it really should be ystep
+                                                        var ix:int = _ix*ystep + ox; // it really should be ystep
 
                                                         if(pass == 0)
@@ -384 +412 @@
         public var Hsumimage:SumImage;
 }
+
+class IntRect
+{
+        public var x:int, y:int, w:int, h:int;
+}