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Questions and Answers
Which type of spatial frequency filtering is useful for enhancing large structures such as organs and soft tissues?
Which type of spatial frequency filtering is useful for enhancing large structures such as organs and soft tissues?
- High-pass filtering (correct)
- Low-pass filtering
- Masking
- Edge enhancement
What is edge enhancement in spatial frequency filtering?
What is edge enhancement in spatial frequency filtering?
- When frequencies of areas of interest are amplified and other frequencies suppressed
- When more pixels in the neighborhood are included in the signal average
- When frequencies are masked resulting in the loss of small details
- When fewer pixels in the neighborhood are included in the signal average (correct)
What is the purpose of low-pass filtering in spatial frequency filtering?
What is the purpose of low-pass filtering in spatial frequency filtering?
- To remove high-frequency noise (correct)
- To increase contrast and edge enhancement
- To amplify frequencies of areas of interest
- To suppress frequencies resulting in the loss of small details
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