Function cvEndFindContours

deps/opencv/modules/imgproc/src/contours.cpp:1251–1276

The function add to tree the last retrieved/substituted contour, releases temp_storage, restores state of dst_storage (if needed), and returns pointer to root of the contour tree */

   releases temp_storage, restores state of dst_storage (if needed), and
   returns pointer to root of the contour tree */
CV_IMPL CvSeq *
cvEndFindContours( CvContourScanner * _scanner )
{
    CvContourScanner scanner;
    CvSeq *first = 0;

    if( !_scanner )
        CV_Error( CV_StsNullPtr, "" );
    scanner = *_scanner;

    if( scanner )
    {
        icvEndProcessContour( scanner );

        if( scanner->storage1 != scanner->storage2 )
            cvReleaseMemStorage( &(scanner->storage1) );

        if( scanner->cinfo_storage )
            cvReleaseMemStorage( &(scanner->cinfo_storage) );

        first = scanner->frame.v_next;
        cvFree( _scanner );
    }

    return first;
}


#define ICV_SINGLE                  0