Q. Two filters of similar size are used for smoothing image having impulse noise. One is median filter while the other is a linear spatial filter. Which would the blurring effect of both?

View solution

Q. An image contains noise having appearance as black and white dots superimposed on the image. Which of the following noise(s) has the same appearance?

View solution

Q. While performing the median filtering, suppose a 3*3 neighborhood has value (10, 20, 20, 20, 15, 20, 20, 25, 100), then what is the median value to be given to the pixel under filter?

View solution

Q. Which of the following are forced to the median intensity of the neighbors by n*n median filter?

View solution

Q. Which filter(s) used to find the brightest point in the image?

View solution

Q. The median filter also represents which of the following ranked set of numbers?

View solution

Q. Which of the following filter represents a 0th percentile set of numbers?

View solution

Q. In neighborhood operations working is being done with the value of image pixel in the neighborhood and the corresponding value of a subimage that has same dimension as neighborhood. The subimage is referred as _________

View solution

Q. The response for linear spatial filtering is given by the relationship __________

View solution

Q. In linear spatial filtering, what is the pixel of the image under mask corresponding to the mask coefficient w (1, -1), assuming a 3*3 mask?

View solution

Q. Which of the following is/are a nonlinear operation?

View solution

Q. Which of the following is/are used as basic function in nonlinear filter for noise reduction?

View solution

Q. 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 ≥ (n – 1)/2 pixels from border of image, what happens to the resultant image?

View solution

Q. Which of the following method is/are used for padding the image?

View solution

Q. In neighborhood operation for spatial filtering using square mask of n*n, which of the following approach is/are used to obtain a perfectly filtered result irrespective of the size?

View solution

Q. Which of the following fact(s) is/are true for the relationship between low frequency component of Fourier transform and the rate of change of gray levels?

View solution

Q. Which of the following fact(s) is/are true for the relationship between high frequency component of Fourier transform and the rate of change of gray levels?

View solution

Q. What is the name of the filter that multiplies two functions F(u, v) and H(u, v), where F has complex components too since is Fourier transformed function of f(x, y), in an order that each component of H multiplies both real and complex part of corresponding component in F?

View solution

Q. To set the average value of an image zero, which of the following term would be set 0 in the frequency domain and the inverse transformation is done, where F(u, v) is Fourier transformed function of f(x, y)?

View solution

Q. What is the name of the filter that is used to turn the average value of a processed image zero?

View solution