{"id":19260819,"url":"https://github.com/mitre/biqt-iris","last_synced_at":"2025-04-21T16:32:12.841Z","repository":{"id":40854221,"uuid":"194312416","full_name":"mitre/biqt-iris","owner":"mitre","description":"An iris quality plugin for the BIQT framework.","archived":false,"fork":false,"pushed_at":"2023-08-22T12:48:00.000Z","size":67,"stargazers_count":16,"open_issues_count":4,"forks_count":6,"subscribers_count":4,"default_branch":"master","last_synced_at":"2025-04-01T14:38:35.595Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"C++","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/mitre.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"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}},"created_at":"2019-06-28T17:43:12.000Z","updated_at":"2025-03-31T07:54:36.000Z","dependencies_parsed_at":"2024-11-09T19:23:46.850Z","dependency_job_id":"a9c3b651-ae31-4b88-b2cb-f6ada80b1daf","html_url":"https://github.com/mitre/biqt-iris","commit_stats":null,"previous_names":[],"tags_count":2,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mitre%2Fbiqt-iris","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mitre%2Fbiqt-iris/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mitre%2Fbiqt-iris/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/mitre%2Fbiqt-iris/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/mitre","download_url":"https://codeload.github.com/mitre/biqt-iris/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":250091036,"owners_count":21373305,"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":"2024-11-09T19:23:01.507Z","updated_at":"2025-04-21T16:32:12.521Z","avatar_url":"https://github.com/mitre.png","language":"C++","funding_links":[],"categories":[],"sub_categories":[],"readme":"\u003e NOTICE\n\u003e \n\u003e This software (or technical data) was produced for the U. S. Government under contract, and is subject to the Rights in Data-General Clause 52.227-14, Alt. IV (DEC 2007)\n\u003e (C) 2023 The MITRE Corporation. All Rights Reserved.\n\u003e Approved for Public Release; Distribution Unlimited. Public Release Case Number 18-0812.\n\n## Summary ##\n\nBIQTIris is a reference library for computing iris image statistics using various quality attributes, features, and ISO metrics. It is\npart of the open-source BIQT Framework.\n\nImages smaller than 256x256 or larger than 1000x680 are not supported. Raw image data is assumed to have a color depth of 8 bpp.\n\n### Features ###\n\nThe following features are reported by this provider:\n\n* `image_height` _value range: [256, +inf)_ - Image height measured in pixels.\n* `image_width` _value range: [256, +inf)_ - Image width measured in pixels.\n* `iris_center_x` _value range: [1, +inf)_ - The x-coordinate of the iris center in the image.\n* `iris_center_y` _value range: [1, +inf)_ - The y-coordinate of the iris center in the image.\n* `iris_diameter` _value range: [224, 432]_ - Raw diameter of the iris measured in pixels.\n* `pupil_center_x` _value range: [1, +inf)_ - The x-coordinate of the pupil center in the image.\n* `pupil_center_y` _value range: [1, +inf)_ - The y-coordinate of the pupil center in the image.\n* `pupil_diameter` _value range: [134, 202]_ - Raw diameter of the pupil measured in pixels.\n* `pupil_radius` _value range: [32, 101]_ - Raw radius of the pupil measured in pixels.\n\n### Quality Metrics ###\n\nThe following quality metrics are reported by this provider:\n\n  * `contrast` _value range: [0, +inf)_ - Raw score quantifying overall image contrast.\n  * `iris_pupil_gs` _value range: [0, +inf)_ - Raw measure quantifying how distinguishable the boundary is between the pupil and the iris.\n  * `iris_sclera_gs` _value range: [0, +inf)_ - Raw measure quantifying how distinguishable the boundary is between the iris and the sclera.\n  * `pupil_circularity_avg_deviation` _value range: [0, +inf)_ - Average deviation for the dimensionless pupil radii at corresponding angle segments.\n  * `quality` _value range: [0, 100]_ - An overall quality score that leverages several statistics together.\n  * `sharpness` _value range: [0, +inf)_ - Raw score quantifying the sharpness of the image.\n\nNEW! The following ISO metrics are reported by this provider (please refer to ISO/IEC 29794-6:2015 [Information technology — Biometric sample quality — Part 6: Iris image data] documentation for more information):\n\n  * `iso_overall_quality` _value range: [0, 100)_ - The overall ISO quality score based on the product of normalized individual iso metrics.\n  * `iso_greyscale_utilization` _value range: [0, +inf), recommended value: 6 or greater_ - The spread of intensity values regarding the pixel values within the iris portion of the image.\n  * `iso_iris_pupil_concentricity` _value range: [0, 100], recommended value: 90 or greater_ - The degree to which the pupil centre and the iris centre are in the same location.\n  * `iso_iris_pupil_contrast` _value range: [0, 100), recommended value: 30 or greater_ - The image characteristics at the boundary between the iris region and the pupil.\n  * `iso_iris_pupil_ratio` _value range: (9.58, 121.30), recommended value: between 20 and 70_ - The degree to which the pupil is dilated or constricted.\n  * `iso_iris_sclera_contrast` _value range: [0, 100), recommended value: greater than 5_ - The image characteristics at the boundary between the iris region and the sclera.\n  * `iso_margin_adequacy` _value range: [0, 100], recommended value: greater than 80_ - The degree to which the iris portion of the image is centred relative to the edges of the entire image.\n  * `iso_pupil_boundary_circularity` _value range: [0, 100]_ - The circularity of the iris-pupil boundary.    \n  * `iso_sharpness` _value range: [0, 100)_ - The degree of focus present in the image.\n  * `iso_usable_iris_area` _value range: [0, 100]_ - The fraction of the iris portion of the image that is not occluded by eyelids, eyelashes, or specular reflections.\n\nThe following normalized statistics are also reported by this provider:\n\n  * `normalized_contrast` _value range: [0, 1]_ - Normalized value for `contrast`.\n  * `normalized_iris_diameter` _value range: [0, 1]_ - Normalized value for `iris_diameter`.\n  * `normalized_iris_pupil_gs` _value range: [0, 1]_ - Normalized value for `iris_pupil_gs`.\n  * `normalized_iris_sclera_gs` _value range: [0, 1]_ - Normalized value for `iris_sclera_gs`.\n  * `normalized_sharpness` _value range: [0, 1]_ - Normalized value for `sharpness`.\n\nNEW! The following ISO normalized statistics are also reported by this provider \n  * `normalized_iso_greyscale_utilization` _value range: [0, 1]_ - Normalized value for `iso_greyscale_utilization`.\n  * `normalized_iso_iris_diameter` _value range: [0, 1]_ - Normalized value for `iris_diameter`.\n  * `normalized_iso_iris_pupil_concentricity` _value range: [0, 1]_ - Normalized value for `iso_iris_pupil_concentricity`.\n  * `normalized_iso_iris_pupil_contrast` _value range: [0, 1]_ - Normalized value for `iso_iris_pupil_contrast`.\n  * `normalized_iso_iris_pupil_ratio` _value range: [0, 1]_ - Normalized value for `iso_iris_pupil_ratio`.\n  * `normalized_iso_iris_sclera_contrast` _value range: [0, 1]_ - Normalized value for `iso_iris_sclera_contrast`.\n  * `normalized_iso_margin_adequacy` _value range: [0, 1]_ - Normalized value for `iso_margin_adequacy`.  \n  * `normalized_iso_sharpness` _value range: [0, 1]_ - Normalized value for `iso_sharpness`.\n  * `normalized_iso_usable_iris_area` _value range: [0, 1]_ - Normalized value for `iso_usable_iris_area`.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmitre%2Fbiqt-iris","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fmitre%2Fbiqt-iris","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fmitre%2Fbiqt-iris/lists"}