A.False

B.True

A.12 Connectivity

B.16 connections

C.8-connectivity

D.4 Connectivity

A.True

B.False

A.The main lobe width of the Hamming window is larger than that of the rectangular window, and has a higher spectral resolution (the rectangular frame has a higher spectral resolution)

B.The rectangular window has better smoothness, but the waveform details are lost and leakage occurs (Yes, new version PPT page 253)

C.The Hamming window can effectively overcome the leakage phenomenon and has the widest application range.

D.The side lobe peak of the rectangular window is large, so its spectrum leakage is more serious

A.cv2.blur(im, (3, 3))

B.cv2.filter2D(im, -1, sharpen_1)

C.cv2.GaussianBlur(im, (5, 5), 0)

D.cv2.medianBlur(im, 5)