Digital Image Processing Multiple Choice Questions on “Histogram Processing –
1”.
1. What is the basis for numerous spatial domain processing techniques?
A. Transformations
B. Scaling
C. Histogram
D. None of the Mentioned
Answer: C
Clarification: Histogram is the basis for numerous spatial domain processing techniques.
2. In _______ image we notice that the components of histogram are concentrated on the low side on intensity scale.
A. bright
B. dark
C. colourful
D. All of the Mentioned
Answer: B
Clarification: Only in dark images, we notice that the components of histogram are concentrated on the low side on intensity scale.
3. What is Histogram Equalisation also called as?
A. Histogram Matching
B. Image Enhancement
C. Histogram linearisation
D. None of the Mentioned
Answer: C
Clarification: Histogram Linearisation is also known as Histogram Equalisation.
4. What is Histogram Matching also called as?
A. Histogram Equalisation
B. Histogram Specification
C. Histogram linearisation
D. None of the Mentioned
Answer: B
Clarification: Histogram Specification is also known as Histogram Matching.
5. Histogram Equalisation is mainly used for ________________
A. Image enhancement
B. Blurring
C. Contrast adjustment
D. None of the Mentioned
Answer: A
Clarification: It is mainly used for Enhancement of usually dark images.
6. To reduce computation if one utilises non-overlapping regions, it usually produces ______ effect.
A. Dimming
B. Blurred
C. Blocky
D. None of the Mentioned
Answer: C
Clarification: Utilising non-overlapping regions usually produces “Blocky” effect.
7. What does SEM stands for?
A. Scanning Electronic Machine
B. Self Electronic Machine
C. Scanning Electron Microscope
D. Scanning Electric Machine
Answer: C
Clarification: SEM stands for Scanning Electron Microscope.
8. The type of Histogram Processing in which pixels are modified based on the intensity distribution of the image is called _______________.
A. Intensive
B. Local
C. Global
D. Random
Answer: C
Clarification: It is called Global Histogram Processing.
9. Which type of Histogram Processing is suited for minute detailed enhancements?
A. Intensive
B. Local
C. Global
D. Random
Answer: B
Clarification: Local Histogram Processing is used.
10. In uniform PDF, the expansion of PDF is ________________
A. Portable Document Format
B. Post Derivation Function
C. Previously Derived Function
D. Probability Density Function
Answer: D
Clarification: PDF stands for Probability Density Function.