{"id":19390858,"url":"https://github.com/tecnickcom/inedi","last_synced_at":"2025-10-11T16:01:44.234Z","repository":{"id":66250104,"uuid":"62234948","full_name":"tecnickcom/inedi","owner":"tecnickcom","description":"iNEDI (improved New Edge-Directed Interpolation) Image Zooming Algorithm","archived":false,"fork":false,"pushed_at":"2020-02-01T10:45:43.000Z","size":35,"stargazers_count":28,"open_issues_count":0,"forks_count":9,"subscribers_count":3,"default_branch":"master","last_synced_at":"2025-04-02T22:51:14.955Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"MATLAB","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"other","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/tecnickcom.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":".github/FUNDING.yml","license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null},"funding":{"custom":["https://www.paypal.com/cgi-bin/webscr?cmd=_donations\u0026currency_code=GBP\u0026business=paypal@tecnick.com\u0026item_name=donation%20for%20inedi%20project"]}},"created_at":"2016-06-29T15:02:41.000Z","updated_at":"2024-12-07T05:00:47.000Z","dependencies_parsed_at":null,"dependency_job_id":"7cc9c0d3-b86d-42ad-b41c-f762531fe294","html_url":"https://github.com/tecnickcom/inedi","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tecnickcom%2Finedi","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tecnickcom%2Finedi/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tecnickcom%2Finedi/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/tecnickcom%2Finedi/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/tecnickcom","download_url":"https://codeload.github.com/tecnickcom/inedi/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":250539447,"owners_count":21447310,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":[],"created_at":"2024-11-10T10:23:36.611Z","updated_at":"2025-10-11T16:01:44.228Z","avatar_url":"https://github.com/tecnickcom.png","language":"MATLAB","funding_links":["https://www.paypal.com/cgi-bin/webscr?cmd=_donations\u0026currency_code=GBP\u0026business=paypal@tecnick.com\u0026item_name=donation%20for%20inedi%20project","https://www.paypal.com/donate/?hosted_button_id=NZUEC5XS8MFBJ"],"categories":[],"sub_categories":[],"readme":"# iNEDI\r\n*iNEDI (improved New Edge-Directed Interpolation) Image Zooming Algorithm*\r\n\r\n[![Donate via PayPal](https://img.shields.io/badge/donate-paypal-87ceeb.svg)](https://www.paypal.com/donate/?hosted_button_id=NZUEC5XS8MFBJ)\r\n*Please consider supporting this project by making a donation via [PayPal](https://www.paypal.com/donate/?hosted_button_id=NZUEC5XS8MFBJ)*\r\n\r\n* **category**    Application\r\n* **package**     \\Com\\Tecnick\\inedi\r\n* **author**      Nicola Asuni \u003cinfo@tecnick.com\u003e\r\n* **copyright**   2006-2016 Nicola Asuni - Tecnick.com LTD\r\n* **license**     http://www.gnu.org/copyleft/lesser.html GNU-LGPL v3 (see LICENSE.TXT)\r\n* **link**        https://github.com/tecnickcom/inedi\r\n* **version**     1.6.2\r\n\r\n## Description\r\n\r\nThis projects contains a Matlab implementation of the iNEDI (improved New Edge-Directed Interpolation) algorithm to enlarge (zoom) digital images.\r\n\r\nThis inedi.m function returns an enlarged image by a factor of 2^ZK for both horizontal and vertical directions.\r\n\r\nThis function implements the technicque described in:\r\nN. Asuni, \"iNEDI - Tecnica non lineare per l'interpolazione di immagini,\" Master's thesis - University of Cagliari, 2007.\r\nThesis [ITA]: http://www.tecnick.com/pagefiles/appunti/iNEDI_tesi_Nicola_Asuni.pdf\r\nPresentation [ITA]: http://www.tecnick.com/pagefiles/appunti/iNEDI_presentazione_Nicola_Asuni.pdf\r\n\r\n\r\n\r\n## USAGE\r\n-\r\n[EIM] = inedi(IM)\r\n[EIM] = inedi(IM, ZK)\r\n[EIM] = inedi(IM, ZK, MT)\r\n[EIM] = inedi(IM, ZK, MT, ML)\r\n[EIM] = inedi(IM, ZK, MT, ML, BT)\r\n[EIM] = inedi(IM, ZK, MT, ML, BT, BS)\r\n[EIM] = inedi(IM, ZK, MT, ML, BT, BS, SZ)\r\n[EIM] = inedi(IM, ZK, MT, ML, BT, BS, SZ, VR)\r\n\r\n\r\n## INPUT\r\n\r\nIM : source image\r\nZK : power of the zoom factor (default = 1)\r\n     the image enlargement on vertical and horizontal direction is\r\n     2^ZK; the final image size will be (SIZE * 2^ZK) - (2^ZK - 1)\r\nMT : maximum radius of the local circular window (default = 9)\r\nML : minimum radius of the local circular window (default = 3)\r\nBT : brightness tollerance (default = 32)\r\n     Y points are choosen from the ones inside a circular area around\r\n     the pixel to be interpolated. These pixels must have a\r\n     brightness between a range defined by\r\n     the minimum and maximum brightness values of the 4 neighbors\r\n     pixels of the pixel to interpolate. This range is extended by\r\n     +/- BT value.\r\nBS : maximum brigthess difference for smooth areas (default = 4)\r\n     This parameter is compared to the difference between the maximum\r\n     and minimum brightness value of 4 neighbors pixels to\r\n     discriminate between smooth areas (bicubic interpolation) and\r\n     edge areas (iNEDI interpolation).\r\nSZ : number of image bits per layer (default = 8)\r\nVR : verbose mode (default = false)\r\n     if true prints some information during calculation\r\n\r\n\r\n## OUTPUT\r\n\r\nEIM : enlarged image\r\n\r\n\r\n## Examples\r\n\r\nPlease check the inediexample.m file on how to use this function.\r\n\r\n\r\n## Notes\r\n\r\nThis implementation is not intended to be used in a production environment. The main purpose of this script is to clearly show how this technique works. Better performaces could be obtained using a compiled version or rewriting this technique using a low-level programming language.\r\n\r\n## KEYWORDS\r\niNEDI, NEDI, image, zooming, magnification, upsizing, resampling, resolution enhancement, interpolation, super-resolution, covariance-based adaptation, geometric regularity, matlab, octave.\r\n\r\n\r\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftecnickcom%2Finedi","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftecnickcom%2Finedi","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftecnickcom%2Finedi/lists"}