{"id":19676794,"url":"https://github.com/victordibia/signver","last_synced_at":"2025-09-05T13:31:49.402Z","repository":{"id":77574516,"uuid":"385809213","full_name":"victordibia/signver","owner":"victordibia","description":"Signature Verification","archived":false,"fork":false,"pushed_at":"2022-03-02T07:44:37.000Z","size":82117,"stargazers_count":13,"open_issues_count":4,"forks_count":6,"subscribers_count":2,"default_branch":"master","last_synced_at":"2025-04-05T12:42:11.199Z","etag":null,"topics":[],"latest_commit_sha":null,"homepage":null,"language":"Jupyter Notebook","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/victordibia.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":"2021-07-14T04:06:05.000Z","updated_at":"2024-08-09T14:01:06.000Z","dependencies_parsed_at":"2023-04-14T23:24:10.875Z","dependency_job_id":null,"html_url":"https://github.com/victordibia/signver","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/victordibia/signver","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/victordibia%2Fsignver","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/victordibia%2Fsignver/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/victordibia%2Fsignver/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/victordibia%2Fsignver/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/victordibia","download_url":"https://codeload.github.com/victordibia/signver/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/victordibia%2Fsignver/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":273765699,"owners_count":25164186,"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","status":"online","status_checked_at":"2025-09-05T02:00:09.113Z","response_time":402,"last_error":null,"robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":true,"can_crawl_api":true,"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":"2024-11-11T17:30:15.388Z","updated_at":"2025-09-05T13:31:44.357Z","avatar_url":"https://github.com/victordibia.png","language":"Jupyter Notebook","funding_links":[],"categories":[],"sub_categories":[],"readme":"# SignVer [Alpha]: A library for Automatic Offline Signature Verification\n\n\u003e SignVer is in Alpha and under active development. There may be significant changes ahead.\n\n![signver logo - a library for automatic signature verification](docs/images/logo.png)\n\nSignVer applies modern deep learning techniques in addressing the task of offline signature verification -\ngiven a pair (or pairs of) signatures, determine if they are produced by the same user (genuine signatures) or different users (potential forgeries). SignVer addresses this task by providing a set of modules that address subtasks required to implement signature verification in real world environments.\n\n![signver architecture](docs/images/signature_pipeline.png)\n\n## Signver Library Modules\n\n### Detector\n\nReturns a list of bounding boxes where signatures are located in an image.\n\n```python\nfrom signver.detector import Detector\n\ndetector = Detector()\ndetector.load(detector_model_path)\n\nboxes, scores, classes, detections = detector.detect(img_tensor)\nplot_np_array(annotated_image, plot_title=\"Document and Extracted Signatures\")\n\n```\n\n![localizer](docs/images/localizer.png)\n\n### Cleaner\n\nReturns a list of cleaned signature images (removal of background lines and text), given a list of signature images\n\n```python\n# Get image crops\nsignatures = get_image_crops(img_tensor, boxes, scores,  threshold = 0.22 )\ncleaned_sigs = cleaner.clean(np.array(signatures))\n\n```\n\n![cleaner](docs/images/cleaned.jpg)\n\n### Extractor\n\nReturns a list of vector representations, given a list of image tensors/np arrays\n\n```python\nfrom signver.extractor import MetricExtractor\n\nextractor = MetricExtractor()\nextractor.load(extractor_model_path)\n\nfeatures = extractor.extract(signature_list)\n```\n\n### Matcher\n\nReturns a distance measure given a pair of signatures\n\n```python\nfrom signver.matcher import Matcher\n\nmatcher = Matcher()\nmatcher.cosine_distance(feat1,feat2)    # 0.5\nmatcher.verify(feat1, feat2)    # False\n```\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvictordibia%2Fsignver","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fvictordibia%2Fsignver","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fvictordibia%2Fsignver/lists"}