Which of the following lowpass filters is/are covers the range of very smooth filter function?(a) Ideal lowpass filters(b) Butterworth lowpass filter(c) Gaussian lowpass filter(d) All of the mentionedI had been asked this question in examination.My question comes from Smoothing Frequency-Domain Filters topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing

Which of the following lowpass filters is/are covers the range of very

1.	Which of the following lowpass filters is/are covers the range of very smooth filter function?(a) Ideal lowpass filters(b) Butterworth lowpass filter(c) Gaussian lowpass filter(d) All of the mentionedI had been asked this question in examination.My question comes from Smoothing Frequency-Domain Filters topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» CORRECT OPTION is (a) Ideal lowpass filters To ELABORATE: Gaussian lowpass FILTER covers the RANGE of very smooth filter functioning of lowpass filters.

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