Question 1 : When the human eye does not respond with equal sensitivity to all visual information

- Spatial redundancy
- Psychovisual redundancy
- Coding redundancy
- Temporal redundancy

Question 2 : Structuring element runs over image's

- rows
- columns
- edges
- every element

Question 3 : All the pixels at Euclidean distance of r from given pixel P form

- A circle centered at P
- A square centered at P
- A triangle centered at P
- A rectangle centered at P

Question 4 : DIT-FFT stands for

- Discrete In Time Fast Fourier Transform
- Decompose In Time Fast Fourier Transform
- Divide In Time Fast Fourier Transform
- Decimation In Time Fast Fourier Transform

Question 5 : Given image āIā and structuring element āsā , boundary (I) given as

- I ā (I Ó© s)
- I + (I Ó© s)
- (I Ó© s) - I
- (I Ó© s) + I

Question 6 : Which of the following techniques is based on the Fourier transform?

- spectral
- topological
- statistical
- structural

Question 7 : Given A={(1,0), (1,1), (1,2), (0,3), (1,3), (2,3), (3,3), (1,4)} and B={(0,0), (1,0)} Result of A eroded B will be

- {(0,3), (1,3), (2,3)}
- {(1,3), (2,3), (3,3)}
- {(0,0), (1,3), (2,3)}
- {(0,3), (2,3), (3,3)}

Question 8 : What is the effect of equalizing an already equalized histogram?

- Number grey levels reduced
- No Change on histogram
- Number grey levels increased
- New grey levels gets added

Question 9 : The basic idea behind Huffman coding is to

- compress data by using fewer bits to encode more frequently occuring pixels
- expand data by using fewer bits to encode more frequently occuring pixels
- compress data by using fewer bits to encode fewer frequently occuring pixels
- compress data by using more bits to encode more frequently occuring pixels

Question 10 : Example of an isotropic filter is

- Robert
- Sobel
- Laplacian
- Prewitt

Question 11 : On decompression of file, which technique retrieved exact image without any loss of information

- Huffman coding
- Improved grey scale quantization
- JPEG
- Vector quantization

Question 12 : If pixels are reconstructed without error_it is called _____________compression

- coordinates wise
- non-reversible
- reversible
- pixel wise

Question 13 : Thresholding function in contrast stretching creates

- binary image
- high quality image
- enhanced image
- low quality image

Question 14 : Fully containment of the Structuring element in an image is required in

- opening
- closing
- erosion
- dilation

Question 15 : Wavelet series equation is the sum of _________________

- scaling and detail
- row and col inverse
- spatial and frequency mean
- row andsummation detail along column

Question 16 : Structuring element is also called

- pixels
- lines
- subimage
- noise

Question 17 : If component of histogram are concentrated on the lower (towards zero) side of the gray scale then it is a histogram of

- Dark Image
- Bright Image
- Low constrast image
- High constrast image

Question 18 : In neighborhood operation for spatial filtering if a square mask of size n*n is used it is restricted that the center of mask must be at a distance ā„ (n ā 1)/2 pixels from border of image, what happens to the resultant image?

- The resultant image will be of same size as original image
- The resultant image will be a little larger size than original image
- The resultant image will be a little smaller size than original image
- The resultant image will be smooth near the border

Question 19 : Given two pixels P(5,2) and Q(4,7), the D4 distance between them is

- 5
- 6
- 5.099
- 1

Question 20 : The transform which possess the multi-resolution property in an image is:

- Fast Fourier Transform (FFT)
- Discrete Cosine Transform (DCT)
- Short Term Fourier Transform (STFT)
- Wavelet Transform

Question 21 : The D8 distance is also called

- Manhattan distance
- City block distance
- Chessboard distance
- Euclidean distance

Question 22 : The error in the image due to low tonal resolution is called

- Checker board effect
- False contouring
- Quantization error
- Blurring effect

Question 23 : Which one of the following is not a limitation of the basic high pass filter

- It may produce negative response
- It may produce response greater than L-1
- It destroys all the constant gray level regions
- It generates blurring effect

Question 24 : Method generating a processed image having specified histogram is called

- histogram enhancement
- histogram normalization
- histogram equalization
- histogram matching

Question 25 : Choose lossless statistical method example

- Run length encoding
- Huffman Encoding
- Jpeg
- Improved Gray Scale Quantization

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