The feature(s) of a highpass filtered image is/are___________(a) Have less gray-level variation in smooth areas(b) Emphasized transitional gray-level details(c) An overall sharper image(d) All of the mentionedThis question was addressed to me during an interview.My question is based upon Filtering in Frequency Domain topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing

The feature(s) of a highpass filtered image is/are___________(a) Have

1.	The feature(s) of a highpass filtered image is/are___________(a) Have less gray-level variation in smooth areas(b) Emphasized transitional gray-level details(c) An overall sharper image(d) All of the mentionedThis question was addressed to me during an interview.My question is based upon Filtering in Frequency Domain topic in section Intensity Transformations and Spatial Filtering of Digital Image Processing
Answer» Right choice is (d) All of the mentioned Explanation: A HIGHPASS filter attenuates low frequency so have less gray-level variation in smooth areas, and ALLOWS high frequencies so have EMPHASIZED TRANSITIONAL gray-level details, resulting in a SHARPER image.

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