ba60f6118992d8a5a2-3435 20230921070444024 beie:beie director@blueeyesintelligence.org WEB-FORM International Journal of Recent Technology and Engineering (IJRTE) IJRTE 22773878 10.35940/ijrte.2277-3878 https://www.ijrte.org/ 09 30 2023 12 3 School of Electrical and Electronic Engineering, Taif University, Al Hawiyah, Taif 26571, KSA. Abdullah Alzahrani https://orcid.org/0000-0002-2490-1466 Fingernails structure are rich in orientation, ridges and edge features. Inspired by Edge Histogram Descriptor (EHD), this paper presents an efficient orientation-based local descriptor, named histogram of ridges orientation delineate (HROD). HROD is based on the fact that human vision is sensitive to edge features for image perception. For a given image, HROD algorithm first execute and perform a pre-process i.e., re-sizing, filtering, enhancement, segmentation, edge detection and feature extraction. Then, finds oriented edge maps according to predefined orientations using a well-known edge operator mask (2×2 sub block) and obtains a ridges orientation delineate map by choosing an orientation with the maximum edge magnitude for each pixel. In the experiment on this research, five oriented edge maps were used to generate and detect the maximum edge orientation construction of each block, namely vertical, horizontal, diagonal 45°, diagonal 135° and isotropic (non-orientation specific) orientation. Experimental results on fingernail images show that the performance of HROD comparable with the state-of-the-art orientation-based methods (e.g., Gabor filter, histogram of oriented gradients, and local directional code). Furthermore, the proposed HROD algorithm has advantages of low feature dimensionality and fast implementation for a real-time fingernails orientation recognition system. 09 30 2023 34 42 CC BY-NC-ND 4.0 10.35940/BEIESP.CrossMarkPolicy www.ijrte.org true International Journal of Recent Technology and Engineering (IJRTE) No, I did not receive. No conflicts of interest to the best of our knowledge. Yes, The experimental proto-col with approval of the Taif University Ethics Committee (No. 44-283). The committee for Bioethic with No. (HAO-02-T-105) and the committee considered that the proposal fulfils the requirements of Taif University and accord-ingly ethical approval was granted (from March 23rd). Not relevant As the only author, I have approved the final version of the manuscript and agree to be accountable for all aspects of this work. 10.35940/ijrte.A7577.0912323 https://www.ijrte.org/portfolio-item/A75770512123/