1. Logic operations between two or more images are performed on a pixel-by-pixel basis, except for one that is performed on a single image. Which one is that?
A. AND
B. OR
C. NOT
D. None of the mentioned
2. Which of the following logical operator(s) is/are functionally complete?
A. AND
B. OR
C. NOT
D. All of the mentioned
3. While implementing logic operation on gray-scale images, the processing of pixel values is done as __________
A. String of integer numbers
B. String of floating numbers
C. String of binary numbers
D. None of the mentioned
4. What is the equivalent for a black, 8-bit pixel to be processed under logic operation on a grayscale image?
A. A string: 00000000
B. A string: 11111111
C. A string: 10000000
D. A string: 01111111
5. Which of the following operation(s) is/are equivalent to negative transformation?
A. AND
B. OR
C. NOT
D. All of the mentioned
6. Which of the following operations are used for masking?
A. AND, OR
B. AND, NOT
C. NOT, OR
D. All of the mentioned
7. Two images having one-pixel gray values 01010100 and 00000101 at the same location, are operated against AND operator. What would be the resultant pixel gray value at that location in the enhanced image?
A. 10100100
B. 11111011
C. 00000100
D. 01010101
8. Which of the following arithmetic operator is primarily used as a masking operator in enhancement?
A. Addition
B. Subtraction
C. Multiplication
D. Division
9. Which of the following is/are the more commercially successful image enhancement method in mask mode radiography, an area under medical imaging?
A. Addition
B. Subtraction
C. Multiplication
D. Division
10. The subtraction operation results in areas that appear as dark shades of gray. Why?
A. Because the difference in such areas is little, that yields a low value
B. Because the difference in such areas is high, that yields a low value
C. Because the difference in such areas is high, that yields a high value
D. None of the mentioned