下面是代码和图片
void VLIB_ConnectedComponents()
{
Uint8* imgData;
Uint32* imgInData;
Uint8 *outputimg;
int i;
int maxBytesRequired;
int bytesRecommended;
int status;
int sizeOfCCHandle;
int area;
int left;
int right;
int top;
int bottom;
int xsum;
int ysum;
int imgwidth,imgheight;
VLIB_CC vlibBlob;
void *pBuf;
VLIB_CCHandle* handle;
int numCCs;
char* fileDir = "F:\\DSP\\VLIB_V_2_1\\VLIB_V_2_1\\examples\\DM642\\y.bmp";
imgheight = get_image_height(fileDir);
imgwidth = get_image_width(fileDir);
imgData = (Uint8*)malloc(sizeof(Uint8)*imgheight*imgwidth);
imgInData = (Uint32*)malloc(sizeof(Uint32)*imgheight*imgwidth/32);
outputimg = (Uint8*)malloc(sizeof(unsigned char)*imgheight*imgwidth);
get_image_pointer(fileDir,imgData,imgwidth*imgheight);
Create32BitPackedBinImage( imgData,
imgwidth,
imgheight,
imgInData,
240);
VLIB_calcConnectedComponentsMaxBufferSize(imgwidth,imgheight,MINBLOBAREA,&maxBytesRequired);
bytesRecommended = maxBytesRequired ;
sizeOfCCHandle = VLIB_GetSizeOfCCHandle();
handle = (VLIB_CCHandle*)malloc(sizeOfCCHandle);//Uint8 handle[sizeOfCCHandle]
pBuf = (void*)malloc(bytesRecommended);
// memset(handle,0,sizeOfCCHandle);
// memset(pBuf,0,bytesRecommended);
status = VLIB_initConnectedComponentsList(handle, (void *)pBuf, bytesRecommended);
status = VLIB_createConnectedComponentsList(handle,imgwidth,imgheight,(int*)imgInData,MINBLOBAREA,1);//1为8邻域操作
if (status == VLIB_WARNING_LOW_MEMORY)
{
printf("\nConnected Components low memory warning!!! Buffer within 1kbyte of allocation!!!\n");
}
else if (status != VLIB_NO_ERROR)
{
printf("\nCreation of Connected Components failed!!!\n");
}
fflush(stdout);
VLIB_getNumCCs(handle, &numCCs);
// **test**
//Report CC Features
for (i=0; i < numCCs; i++)
{
VLIB_getCCFeatures(handle, &vlibBlob, i);
left = vlibBlob.xmin;
right = vlibBlob.xmax;
top = vlibBlob.ymin;
bottom = vlibBlob.ymax;
xsum = vlibBlob.xsum;
ysum = vlibBlob.ysum;
area = vlibBlob.area;
printf("Connected component #%d:\n", i+1);
printf("Pixel Area : %d\n", area);
printf("Bounding Box: left = %2d, right = %2d, top = %2d, bottom = %2d\n",left, right, top, bottom);
// printf(" Horz. Sum : %d\n", xsum);
// printf(" Vert. Sum : %d\n", ysum);
printf("Centroid : (%4.1f,%4.1f)\n\n", (float)xsum/area, (float)ysum/area);
// Unpack32BitPackedBinImage(imgInData,
// imgwidth,
// imgheight,
// outputimg);
// fflush(stdout);
// if(area >= 4000)
// {
// draw_label_square(imgData,left,top,right,bottom,255);
// draw_cross_5X5(disRGBbuffer,x_l,y_l,yellow);
// draw_labelXXX(disRGBbuffer, left,top*2,yellow); //
// draw_labelXXX(disRGBbuffer, right,top*2,yellow); //
// draw_labelXXX(disRGBbuffer, left,bottom*2,yellow); //
// draw_labelXXX(disRGBbuffer, right,bottom*2,yellow); //
// }
}
// draw_label_square(imgData,left,top,right,bottom,yellow);
free(pBuf);
free(handle);
/**test**/
}
一下是printf输出的结果：
+---------------------------------------+
| TESTING: Connected Components |
+---------------------------------------+
d倫bc孭ixel Area : 276
Bounding Box: left = 62, right = 285, top = 10, bottom = 16
Centroid : (183.6,13.2)
Connected component #2:
Pixel Area : 348
Bounding Box: left = 0, right = 285, top = 16, bottom = 25
Centroid : (152.2,21.2)
Connected component #3:
Pixel Area : 348
Bounding Box: left = 0, right = 285, top = 25, bottom = 34
Centroid : (152.2,30.2)
Connected component #4:
Pixel Area : 348
Bounding Box: left = 0, right = 285, top = 34, bottom = 43
Centroid : (152.2,39.2)
Connected component #5:
Pixel Area : 538
Bounding Box: left = 0, right = 285, top = 38, bottom = 46
Centroid : (144.6,42.3)
Connected component #6:
Pixel Area : 216
Bounding Box: left = 0, right = 193, top = 43, bottom = 49
Centroid : (95.5,46.5)
Connected component #7:
Pixel Area : 540
Bounding Box: left = 0, right = 285, top = 46, bottom = 55
Centroid : (144.1,51.3)
Connected component #8:
Pixel Area : 504
Bounding Box: left = 6, right = 285, top = 51, bottom = 58
Centroid : (153.3,54.6)
Connected component #9:
Pixel Area : 1324
Bounding Box: left = 0, right = 285, top = 55, bottom = 68
Centroid : (153.3,62.6)
Connected component #10:
Pixel Area : 1176
Bounding Box: left = 0, right = 285, top = 66, bottom = 77
Centroid : (141.8,72.2)
Connected component #11:
Pixel Area : 1176
Bounding Box: left = 0, right = 285, top = 75, bottom = 86
Centroid : (141.8,81.2)
Connected component #12:
Pixel Area : 1288
Bounding Box: left = 0, right = 285, top = 84, bottom = 96
Centroid : (147.1,90.5)
Connected component #13:
Pixel Area : 1398
Bounding Box: left = 0, right = 285, top = 93, bottom = 105
Centroid : (142.8,99.3)
Connected component #14:
Pixel Area : 1398
Bounding Box: left = 0, right = 285, top = 102, bottom = 114
Centroid : (142.8,108.3)
Connected component #15:
Pixel Area : 1226
Bounding Box: left = 0, right = 285, top = 111, bottom = 122
Centroid : (136.0,116.9)
Connected component #16:
Pixel Area : 1044
Bounding Box: left = 0, right = 285, top = 120, bottom = 131
Centroid : (139.5,126.0)
Connected component #17:
Pixel Area : 786
Bounding Box: left = 0, right = 285, top = 129, bottom = 140
Centroid : (132.2,134.9)
如果是以8邻域处理，应该只有两个连通域，但是现在输出的结果根本不对啊，求大神指教！！！
