Canny edge detection algorithm is used for: a) Non-maximum suppression b) Gaussian blur c) Hysteresis thresholding d) All of the above

Which of these is not a step in the Canny edge detection algorithm? a) Calculation of directional gradients b) Gaussian blur c) Discrete Fourier transforms d) Hysteresis thresholding

The edge thresholding parameters used in the Canny algorithm are: a) Upper and lower thresholds b) Edge contrast and saturation c) Median and mean filter d) None of the above

The Canny edge detection algorithm is mainly used for: a) Noise reduction b) Edge detection c) Object recognition d) Image segmentation

The major advantage of the Canny edge detection algorithm over other edge detection algorithms is: a) Its tolerance to noise b) Its low computational cost c) Its automatic threshold selection d) Its ability to calculate directional gradients