题目内容

Which one belongs to input devices?

A. digital camera
B. printer
C. recorder
D. LCD
E. scanner

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Bilinear interpolation is first-order interpolation.

High frequency of the spectrum of 2-dimensional discrete Fourier transform reflects the edge or noise of the image.

If a digital image covers a broad range of the gray scale, then it has low contrast.

Which one belongs to point operations?

A. direct gray scale transform
B. sobel operators
C. fourier transform
D. median filters