In an image being stored line by line, a series of pixels having the same gray-level value is called a ______ .
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The gray scale of a digital image is [0,15], then the bit depth of it is ______ .
Digitizing the coordinate values is called ______ .
Which one doesn’t belong to gray scale transfomration?
A. exponential transformation
B. logarithm transformation
C. linear transformation
D. wavelet transformation
Which kind of lowpass filters have ringing properties?
A. Ideal
Butterworh
C. Gaussian
D. Sharpening
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