Convolution - Answer-Differs from correlation by using the filter without rotation
Sobel operator - Answer-Used for edge detection
First derivative operator - Answer-Non-zero at the onset of intensity steps
Smoothing spatial filters - Answer-Primarily used for reducing random noise
Sharpening spatial filters - Answer-Based on differentiation
Salt and pepper noise - Answer-Best removed by a Median filter
Edge detection - Answer-Purpose is to detect abrupt changes in intensity
Neighborhood operation - Answer-Changing the intensity level at a location using
neighboring pixels
Equivalent to convolution in the spatial domain - Answer-Multiplication in the frequency
domain
Result of applying a smoothing filter to an image - Answer-To reduce noise
Quantization - Answer-Mapping continuous amplitude values to discrete levels
Rods - Answer-More numerous than cones in the human eye
Digitizing - Answer-Converting image data to binary form
Iris - Answer-Part of the eye responsible for its color
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