what does the ksize in sobel filter mean?

Keywords: python-3.x opencv machine-learning computer-vision

Question: 

I just want to know what does the ksize actually signify and how does it alter the effect of the filter

i have tried giving it the values of 1 3 5 and saw varying results

sobely=cv2.Sobel(frame,cv2.CV_64F,0,1,ksize=5)

please help with the doubt

Answers: