题目内容

The mask [-2,-1,0; -1,0,1; 0,1,2] can be used to detect the ( ) edge.

A. horizontal
B. vertical
C. 45º
D. 135º

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( ) can blur the image or remove the noise in the image.

A. Smoothing filters
B. Sharpening filters
C. Ideal highpass filters
D. Homomorphic filters

Output image g(u,v) is obtained from the input image f(x,y) by using the equation: u=cx, v=dy. Then the transformation is ( ).

A. image mirror
B. image magnification
C. image rotation
D. image translation

Which one can reflect the contrast of a digital image?

A. mean
B. variance
C. median
D. mode

Which one is not the format of image file?

A. bmp
B. tif
C. mp3
D. png