{"id":15486328,"url":"https://github.com/positlabs/spark-convolution-patch","last_synced_at":"2026-02-01T02:32:06.808Z","repository":{"id":152066285,"uuid":"189585548","full_name":"positlabs/spark-convolution-patch","owner":"positlabs","description":"Convolution and other super-patches (blur, sharpen)","archived":false,"fork":false,"pushed_at":"2020-12-22T19:36:36.000Z","size":11366,"stargazers_count":79,"open_issues_count":0,"forks_count":8,"subscribers_count":12,"default_branch":"master","last_synced_at":"2025-06-20T10:05:09.378Z","etag":null,"topics":["blur","convolution","edge-detection","image-processing","sharpen","spark-ar"],"latest_commit_sha":null,"homepage":"","language":null,"has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":null,"status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/positlabs.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":".github/FUNDING.yml","license":null,"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":{"github":"positlabs","patreon":null,"open_collective":null,"ko_fi":null,"tidelift":null,"community_bridge":null,"liberapay":null,"issuehunt":null,"otechie":null,"custom":null}},"created_at":"2019-05-31T11:49:26.000Z","updated_at":"2025-01-07T10:10:14.000Z","dependencies_parsed_at":null,"dependency_job_id":"f16193c6-43b2-4860-9eee-1950479cc033","html_url":"https://github.com/positlabs/spark-convolution-patch","commit_stats":{"total_commits":24,"total_committers":3,"mean_commits":8.0,"dds":"0.29166666666666663","last_synced_commit":"ad6752b584ed020a243a3bd926f38da75c294df1"},"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"purl":"pkg:github/positlabs/spark-convolution-patch","repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/positlabs%2Fspark-convolution-patch","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/positlabs%2Fspark-convolution-patch/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/positlabs%2Fspark-convolution-patch/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/positlabs%2Fspark-convolution-patch/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/positlabs","download_url":"https://codeload.github.com/positlabs/spark-convolution-patch/tar.gz/refs/heads/master","sbom_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/positlabs%2Fspark-convolution-patch/sbom","scorecard":null,"host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":286080680,"owners_count":28965365,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2026-02-01T02:14:24.993Z","status":"ssl_error","status_checked_at":"2026-02-01T02:13:55.706Z","response_time":56,"last_error":"SSL_read: unexpected eof while reading","robots_txt_status":"success","robots_txt_updated_at":"2025-07-24T06:49:26.215Z","robots_txt_url":"https://github.com/robots.txt","online":false,"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":["blur","convolution","edge-detection","image-processing","sharpen","spark-ar"],"created_at":"2024-10-02T06:07:43.298Z","updated_at":"2026-02-01T02:32:06.793Z","avatar_url":"https://github.com/positlabs.png","language":null,"funding_links":["https://github.com/sponsors/positlabs","https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick\u0026hosted_button_id=YGS69CHAE9EQC\u0026source=url"],"categories":["Patches"],"sub_categories":["Free Patches"],"readme":"## Blur, sharpen, edge-detection, and convolution patches for Spark AR\n\nhttps://en.wikipedia.org/wiki/Kernel_(image_processing)\n\n![](./demo.gif)\n\nAll of the patches have a strength input, which can be controlled in the demo by clicking on the controller block and using the strength slider in the properties panel.\n\nTIP! If you are using gaussian blur, a more performant option is to chain two directional blurs together (one horizontal, one vertical).\n\n## Patches\nNumbers in the patch names signify the size of the kernel that is used. Lower is better for performance, higher is better for quality.\n\n### BlurDirectional3, BlurDirectional5\nBlur that accepts a vector for directional blurring. Direction vector is normalized, so any range of numbers is acceptable\n\n### Convolve3, Convolve5\nGeneral purpose convolution patches that are used as a base for the other patches.\n\n### UnsharpMask5\nReally good looking sharpening. Just wow. Great job.\n\n### Sharpen3\nHarsh sharpening, good for enhancing small details.\n\n### BlurGaussian3, BlurGaussian5\nGaussian blur. You know the one.\n\n### EdgeBox3\nBoxy edge detector.\n\n### EdgeCross3\nCrossy edge detector.\n\n\n## Edge detection tutorial (outdated)\n\n[![tutorial](./tutorial.jpg)](https://www.youtube.com/watch?v=VbFEAbeGmQc)\n\n## Resources\n\nLearn more stuff by watching my [Spark AR Tutorials on YouTube!](https://www.youtube.com/playlist?list=PLAZp2Vi7Gfspzyla4RrCO6BzVzYW7Lnb-)\n\nFollow me on Instagram [@positlabs](https://instagram.com/positlabs) and try out my effects!\n\nBrowse my open-source [Spark AR repositories on Github!](https://github.com/search?q=user%3Apositlabs+spark)\n\nHave questions? Join the [Spark AR Community](https://www.facebook.com/groups/SparkARcommunity/) group on Facebook.\n\n\n## Donations\n\nIf you used this in client projects, or simply enjoyed making effects with my open-source projects, please consider a donation or sponsorship. One-time donations can be made with PayPal. Subscriptions can be through PayPal or Github Sponsors (click the heart sponsor button at the top of the page).\n\n[![](https://www.paypalobjects.com/en_US/i/btn/btn_donateCC_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick\u0026hosted_button_id=YGS69CHAE9EQC\u0026source=url)\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpositlabs%2Fspark-convolution-patch","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fpositlabs%2Fspark-convolution-patch","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fpositlabs%2Fspark-convolution-patch/lists"}