International Journal of Image, Graphics and Signal Processing (IJIGSP)
IJIGSP Vol. 6, No. 10, 8 Sep. 2014
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Edge Detection Operators: Peak Signal to Noise Ratio Based Comparison
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Author(s)
Index Terms
Canny operator, Edge Detectors, Laplacian of Gaussian, MSE, PSNR, Sobel operator
Abstract
Edge detection is the vital task in digital image processing. It makes the image segmentation and pattern recognition more comfort. It also helps for object detection. There are many edge detectors available for pre-processing in computer vision. But, Canny, Sobel, Laplacian of Gaussian (LoG), Robert’s and Prewitt are most applied algorithms. This paper compares each of these operators by the manner of checking Peak signal to Noise Ratio (PSNR) and Mean Squared Error (MSE) of resultant image. It evaluates the performance of each algorithm with Matlab and Java. The set of four universally standardized test images are used for the experimentation. The PSNR and MSE results are numeric values, based on that, performance of algorithms identified. The time required for each algorithm to detect edges is also documented. After the Experimentation, Canny operator found as the best among others in edge detection accuracy.
Cite This Paper
D. Poobathy, R. Manicka Chezian,"Edge Detection Operators: Peak Signal to Noise Ratio Based Comparison", IJIGSP, vol.6, no.10, pp.55-61, 2014. DOI: 10.5815/ijigsp.2014.10.07
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