{"slug": "opencv", "name": "OpenCV", "category": "dev-libs", "category_name": "Libraries and frameworks", "description": "", "recommenders": 2, "commenters": 5, "warners": 0, "score": 2.54, "rising": -0.65, "first": "2025-11-17", "latest": "2026-09-15", "why": "it remains hands down the best library for simply loading images and video", "why_is_quote": true, "has_verdict": false, "sentiment": {"recommend": 2, "neutral": 2, "compare": 1, "warn": 0}, "spark": [0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0], "listed": false, "loved": [], "caveat": "", "short_quote": "it remains hands down the best library for simply loading images and video", "icon": false, "domain": "benetou.fr", "github_repo": null, "official_url": "https://benetou.fr", "pricing": "", "aliases": ["OpenCV"], "verdict": null, "praise": [{"label": "", "summary": "", "quotes": [{"id": 775352672, "item_id": 48459542, "url": "https://news.ycombinator.com/item?id=48459542", "by": "_the_inflator", "date": "2026-06-09", "stance": "recommend", "quote": "OpenCV is used behind the scenes for many of the fancy stuff those major AI provider pretend to do.", "excerpt": "\"When I use...\" Dude, in business we think in terms of large numbers, internationally easily in billion times processing images. This wouldn't cut it. Also, do you buy the mega expensive super individually designed shoes from the best shoemaker there is to march along though some dirt or simply stick to gumboots? OpenCV is used behind the scenes for many of the fancy stuff those major AI provider pretend to do. Claud", "context": "works in business processing billions of images", "use_case": "large-scale image processing", "switched_from": "", "story": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision"}, {"id": 775345776, "item_id": 48459111, "url": "https://news.ycombinator.com/item?id=48459111", "by": "plasticeagle", "date": "2026-06-09", "stance": "recommend", "quote": "it remains hands down the best library for simply loading images and video", "excerpt": "The thing I love about OpenCV is that it remains hands down the best library for simply loading images and video. I've never even used any of its fancy computer vision features, but if I need to load a video file and look at the pixels - which I did need to do recently for an art project - OpenCV does it in about four lines of code.", "context": "", "use_case": "loading images and video", "switched_from": "", "story": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision"}]}], "caveats": [], "who": [{"by": "_the_inflator", "context": "works in business processing billions of images", "url": "https://news.ycombinator.com/item?id=48459542", "date": "2026-06-09"}], "tags": [], "use_cases": ["gesture/posture tracking", "large-scale image processing", "loading images and video", "computer vision tasks", "image processing in side project"], "compared": [{"slug": "nano-banana", "name": "Nano Banana", "co": 2, "switched_from": 0, "switched_to": 0}], "makers": [], "threads": [{"url": "https://news.ycombinator.com/item?id=48421858", "title": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision", "mentions": 3}, {"url": "https://news.ycombinator.com/item?id=49695408", "title": "Show HN: Kinesis \u2013 Control your Mac with the Meta Neural Band", "mentions": 1}, {"url": "https://news.ycombinator.com/item?id=45950934", "title": "Ask HN: Engineers working AI tools. Are you working more or less?", "mentions": 1}], "sentiment_by_month": {"2025-11": {"neutral": 1}, "2025-12": {}, "2026-01": {}, "2026-02": {}, "2026-03": {}, "2026-04": {}, "2026-05": {}, "2026-06": {"compare": 1, "recommend": 2}, "2026-07": {}, "2026-08": {}, "2026-09": {"neutral": 1}, "2026-10": {}}, "quotes": [{"id": 795353522, "item_id": 49709595, "url": "https://news.ycombinator.com/item?id=49709595", "by": "utopiah", "date": "2026-09-15", "stance": "neutral", "quote": "did something similar using OpenCV", "excerpt": "Great to explore alternative interfaces and repurpose existing hardware without having to rely on the manufacturer implementation. Have you considered providing GadgetBridge support? I don't see anything on https://codeberg.org/Freeyourgadget/Gadgetbridge/issues?state=open&type=all&labels=&milestone=0&project=0&assignee=0&poster=0&sort=relevance&q=%22neural+band%22 but it could bring interesting combinatorial possibi", "context": "", "use_case": "gesture/posture tracking", "switched_from": "", "story": "Show HN: Kinesis \u2013 Control your Mac with the Meta Neural Band"}, {"id": 775352672, "item_id": 48459542, "url": "https://news.ycombinator.com/item?id=48459542", "by": "_the_inflator", "date": "2026-06-09", "stance": "recommend", "quote": "OpenCV is used behind the scenes for many of the fancy stuff those major AI provider pretend to do.", "excerpt": "\"When I use...\" Dude, in business we think in terms of large numbers, internationally easily in billion times processing images. This wouldn't cut it. Also, do you buy the mega expensive super individually designed shoes from the best shoemaker there is to march along though some dirt or simply stick to gumboots? OpenCV is used behind the scenes for many of the fancy stuff those major AI provider pretend to do. Claud", "context": "works in business processing billions of images", "use_case": "large-scale image processing", "switched_from": "", "story": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision"}, {"id": 775345776, "item_id": 48459111, "url": "https://news.ycombinator.com/item?id=48459111", "by": "plasticeagle", "date": "2026-06-09", "stance": "recommend", "quote": "it remains hands down the best library for simply loading images and video", "excerpt": "The thing I love about OpenCV is that it remains hands down the best library for simply loading images and video. I've never even used any of its fancy computer vision features, but if I need to load a video file and look at the pixels - which I did need to do recently for an art project - OpenCV does it in about four lines of code.", "context": "", "use_case": "loading images and video", "switched_from": "", "story": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision"}, {"id": 774761536, "item_id": 48422596, "url": "https://news.ycombinator.com/item?id=48422596", "by": "leoncos", "date": "2026-06-06", "stance": "compare", "quote": "When I use Codex/Claude to complete a computer vision task, such as extracting assets from an image, OpenCV is their default solution.", "excerpt": "When I use Codex/Claude to complete a computer vision task, such as extracting assets from an image, OpenCV is their default solution. However, I believe that using YOLO and other methods is outdated. The best solution now is to directly use Nano Banana or other AI image models. A paper has proven that image generation models can perform most CV tasks well. I believe the new OpenCV should become a wrapper for VLM or ", "context": "", "use_case": "computer vision tasks", "switched_from": "", "story": "OpenCV 5 Is Here: The Biggest Leap in Years for Computer Vision"}, {"id": 735373376, "item_id": 45960836, "url": "https://news.ycombinator.com/item?id=45960836", "by": "heftykoo", "date": "2025-11-17", "stance": "neutral", "quote": "built an initial product prototype using OpenCV", "excerpt": "Work less time on work, work more time on my side project, because it can let me use less time to get job done, so I have more time on my side project. And AI has expanded my boundaries \u2014 for example, I used to know nothing about image processing, but now with AI help, I\u2019ve learned and use the technology and even built an initial product prototype using OpenCV, which helped my side project get off the ground successf", "context": "", "use_case": "image processing in side project", "switched_from": "", "story": "Ask HN: Engineers working AI tools. Are you working more or less?"}]}