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edge detection

Innocent Iguana answered on May 7, 2023 Popularity 9/10 Helpfulness 3/10

answer edge detection

edge detection

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- Areas in image where image brightness changes sharply
- Uses methods that approximates derivatives
- When taking difference between 2 consecutive pixels, 
	the positive value represents the directional vector of edge
- When taking difference between 2 consecutive pixels, 
	the negative value represents the opposite directional vector of edge
- We can also get the same result bu convolving the pictures with 
	special kernels or filters (sobel operators)
- Combining the results of all convolution will give us 
	an approximation of gradient vector in all direction
- Magnitude of the gradient gives us the intensity value, which is 
	an image that represent edges
- Angle of the gradient gives us the direction of edges

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Contributed on May 07 2023

Innocent Iguana

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