#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui/highgui.hpp"
#include #include using namespace cv;
/// global variables
mat src, erosion_dst, dilation_dst;
int erosion_elem = 0;
int erosion_size = 0;
int dilation_elem = 0;
int dilation_size = 0;
intconst max_elem = 2;
intconst max_kernel_size = 21;
/** function headers */
void erosion( int, void* );
void dilation( int, void* );
/** *@function main
*/int main( int, char** argv )
/// create windows
namedwindow( "erosion demo", window_autosize );
namedwindow( "dilation demo", window_autosize );
movewindow( "dilation demo", src.cols, 0 );
/// create erosion trackbar
createtrackbar( "element:\n 0: rect \n 1: cross \n 2: ellipse", "erosion demo", &erosion_elem, max_elem,erosion );
createtrackbar( "kernel size:\n 2n +1", "erosion demo",&erosion_size, max_kernel_size,erosion );
/// create dilation trackbar
createtrackbar( "element:\n 0: rect \n 1: cross \n 2: ellipse", "dilation demo",&dilation_elem, max_elem,dilation );
createtrackbar( "kernel size:\n 2n +1", "dilation demo",&dilation_size, max_kernel_size,dilation );
/// default start
erosion( 0, 0 );
dilation( 0, 0 );
waitkey(0);
return0;}
/** *@function erosion
*/void erosion( int, void* )
else
if( erosion_elem == 1 )
else
if( erosion_elem == 2)
mat element = getstructuringelement( erosion_type,
size( 2*erosion_size + 1, 2*erosion_size+1 ),point( erosion_size, erosion_size ) );
erode( src, erosion_dst, element );
imshow( "erosion demo", erosion_dst );
}/**
*@function dilation
*/void dilation( int, void* )
else
if( dilation_elem == 1 )
else
if( dilation_elem == 2)
mat element = getstructuringelement( dilation_type,
size( 2*dilation_size + 1, 2*dilation_size+1 ),point( dilation_size, dilation_size ) );
dilate( src, dilation_dst, element );
imshow( "dilation demo", dilation_dst );
}
主要用到了getstructuringelement(),erode(),dilate()三個函式。
#include "opencv2/imgproc/imgproc.hpp"
#include "opencv2/imgcodecs.hpp"
#include "opencv2/highgui/highgui.hpp"
#include #include using namespace cv;
/// global variables
mat src, dst;
int morph_elem = 0;
int morph_size = 0;
int morph_operator = 0;
intconst max_operator = 4;
intconst max_elem = 2;
intconst max_kernel_size = 21;
const
char* window_name = "morphology transformations demo";
/** function headers */
void morphology_operations( int, void* );
/** *@function main
*/int main( int, char** argv )
/// create window
namedwindow( window_name, window_autosize );
/// create trackbar to select morphology operation
createtrackbar("operator:\n 0: opening - 1: closing \n 2: gradient - 3: top hat \n 4: black hat", window_name, &morph_operator, max_operator, morphology_operations );
/// create trackbar to select kernel type
createtrackbar( "element:\n 0: rect - 1: cross - 2: ellipse", window_name,&morph_elem, max_elem,morphology_operations );
/// create trackbar to choose kernel size
createtrackbar( "kernel size:\n 2n +1", window_name,&morph_size, max_kernel_size,morphology_operations );
/// default start
morphology_operations( 0, 0 );
waitkey(0);
return0;}
/** *@function morphology_operations
*/void morphology_operations( int, void* )
閉運算：先膨脹後腐蝕。
形態學梯度：膨脹圖與腐蝕圖之差。
頂帽操作（禮帽操作）：原圖與開運算之差。
黑帽操作：閉運算與原圖之差。
用到函式morphologyex()利用基本的膨脹和腐蝕操作，來執行更加高階的形態學變換。
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