Image Edge Detection using Adaptive Filter

The canny edge detection technique is a multi-stage algorithm which is an optimal edge detection technique. But it removes noise in an image using Gaussian filter to become insensitive to noise. The Gaussian filter smoothes even the edges in the images so that the through put is decreased. That is some of the true edges may be missed and false edges may appear in the edge detection. We propose the Adaptive smoothing filter for noise reduction which preserves the edges while smoothing the given image. Since Adaptive filter preserves the edges, the rate of detection of true edges will be more and the false edge detection will be less. So, relatively compared to the Gaussian filter by using the Adaptive filter yields better results. Keywords— Edge detection, Noise, Adaptive filter, Smoothing