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1、一个可以调节参数的形态学例题，用到的自定义核函数为：[cpp]viewplaincopyprint?1.IplConvKernel*cvCreateStructuringElementEx(2.intcols,3.introws,4.intanchor_x,5.intanchor_y,6.intshape,7.int*value=NULL8.);函数中参数cols，rows确定了构造的矩形大小。anchor_x,anchor_y确定了封闭矩形内参考点的横纵坐标。shape是自定义核的形状，具体为1.CV_SHAPE_R
2、ECT核是矩形2.CV_SHAPE_CROSS核是勺子交叉形3.CV_SHAPE_ELLIPSE核是椭圆形4.CV_SHAPE_CUSTOM核是用户自定义类型其释放函数为[cpp]viewplaincopyprint?1.voidcvReleaseStructuringElement(IplConvKernel**element);实例代码如下：[cpp]viewplaincopyprint?1.#include2.#include3.#include4.#incl
3、ude5.IplImage*src=0;6.IplImage*dst=0;7.IplConvKernel*element=0;8.intelement_shape=CV_SHAPE_RECT;9.//theaddressofvariablewhichreceivestrackbarpositionupdate10.intmax_iters=10;11.intopen_close_pos=0;12.interode_dilate_pos=0;13.//callbackfunctionforopen/cl
4、osetrackbar14.voidOpenClose(intpos)15.{16.intn=open_close_pos-max_iters;17.intan=n>0?n:-n;18.element=cvCreateStructuringElementEx(an*2+1,an*2+1,an,an,element_shape,0);19.if(n<0)20.{21.cvErode(src,dst,element,1);22.cvDilate(dst,dst,element,1);23.}24.else25.{26.cv
5、Dilate(src,dst,element,1);27.cvErode(dst,dst,element,1);28.}29.cvReleaseStructuringElement(&element);30.cvShowImage("Open/Close",dst);31.}32.//callbackfunctionforerode/dilatetrackbar33.voidErodeDilate(intpos)34.{35.intn=erode_dilate_pos-max_iters;36.intan=n>0?n:
6、-n;37.element=cvCreateStructuringElementEx(an*2+1,an*2+1,an,an,element_shape,0);38.if(n<0)39.{40.cvErode(src,dst,element,1);41.}42.else43.{44.cvDilate(src,dst,element,1);45.}46.cvReleaseStructuringElement(&element);47.cvShowImage("Erode/Dilate",dst);48.}49.50.in
7、tmain(intargc,char**argv)51.{52.char*filename=argc==2?argv[1]:(char*)"baboon.jpg";53.if((src=cvLoadImage(filename,1))==0)54.return-1;55.printf("Hotkeys:"56."tESC-quittheprogram"57."tr-userectanglestructuringelement"58."te-useellipticstructuringelement
8、"59."tc-usecross-shapedstructuringelement"60."tENTER-loopthroughalltheoptions");61.dst=cvCloneImage(src);62.//createwindowsforoutputimages63.cvNamedWindow("Open
