Morphologycal-edge-detection-using-erosion-and-dialation
the task is to detect object boundary using erosion or dialation .
Here, use the kernel or structure element such as 3×3
1 1 1
1 1 1
1 1 1
if initial binary image is A and after erosion we get B
then , boundary = A – B
for dialation ,
boundary = B – A
input image
erosion output
boundary detection from erosion
dialation output
boundary detection from dialation
