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Edge detection comparative analysis using Roberts, Sobel, Prewitt, and Canny methods

Edge Detection Analysis using Roberts, Sobel, Prewitt and Canny Methods

1Master Program of Information Technology, Faculty of Industrial Technology, Universitas, Universitas Ahmad Dahlan. Jl. Ringroad Selatan, Kragilan, Tamanan, Kec. Banguntapan, Bantul, Daerah Istimewa Yogyakarta 55191, Indonesia

2Department of Electrical Engineering, Faculty of Industrial Technology, Universitas Ahmad Dahlan. Jl. Ringroad Selatan, Kragilan, Tamanan, Kec. Banguntapan, Bantul, Daerah Istimewa Yogyakarta 55191, Indonesia

Received: 4 May 2021; Revised: 27 Jul 2021; Accepted: 31 Jan 2022; Published: 30 Apr 2022.
Open Access Copyright (c) 2022 The authors. Published by Department of Computer Engineering, Universitas Diponegoro
Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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Abstract
Edge identification in a digital image is overgrowing in line with advances in computer technology for image processing. Edge detection becomes vital in recognizing the object of an image because the edge of the object in the image contains critical information. The information obtained can be either the size or shape of the object in the image, so the edge quality must be good so that the information contained in it is not lost. This study uses edge detection with the Roberts, Sobel, Prewitt, and Canny methods. The assessment method uses visual analysis, PSNR, Histogram, and Contrast. The study shows that the calculation of PSNR on the Roberts method has the highest value, with an average of 44.19 dB. Sobel, Prewitt, and Canny operators have PSNR values above 30 dB to classify it as a good image. The histogram value with the highest value is the Sobel operator, with an average histogram value of 22.06. In contrast, the highest contrast value is the Canny operator has an average contrast value of 5.08. The Roberts and Canny operators have the best image quality.
Keywords: edge detection comparison; roberts; sobel; prewitt; canny
Funding: Universitas Ahmad Dahlan

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