r/opencv is a subreddit with 22k members. The most common kinds of discussions are advice requests and ideas, and the community frequently discusses question, opencv, project, image, and camera.
For I was blind but now Itseez
Popular Themes in r/opencv
#1
Advice Requests
: "[Project] I finally built an open-source face anti-spoofing Model EasyShield – need your feedback ;)"
24 posts
#2
Ideas
: "[Project] Been having a blast learning OpenCV on things that I enjoy doing on my free time, overall, very glad things like OpenCV exists"
3 posts
#3
Solution Requests
: "[Project] Color Analyzer [C++, OpenCV]"
2 posts
#4
Pain & Anger
: "[Bug] my call to imread is giving me confusing console output; what could be causing it to tell me that I've fed it an empty string when I didn't?"
1 post
#5
News
: "[News] Announcing the OpenCV Perception Challenge for Bin-Picking"
1 post
Popular Topics in r/opencv
#1
Question
: "How would you detect a shiny object from a cluster [Question]"
99 posts
#2
Opencv
: "[Project] Color Analyzer [C++, Opencv]"
74 posts
#3
Project
: "[Project] Color Analyzer [C++, OpenCV]"
52 posts
#4
Image
19 posts
#5
Camera
14 posts
#6
Tutorials
: "[Tutorials] Video Object Detection in Java with OpenCV + YOLO11 - full end-to-end tutorial"
13 posts
#7
Tutorial
: "[Tutorials] How to install Open CV Contrib files to my IDE (VS 2022)"
13 posts
#8
Detection
13 posts
#9
Discussion
: "[Discussion] How to accurately estimate distance (50–100 cm) of detected objects using a webcam?"
10 posts
#10
Video
: "[Tutorials] Video Object Detection in Java with OpenCV + YOLO11 - full end-to-end tutorial"
8 posts
Flair Used in r/opencv
#1
Project
: "[Project] I built a real-time invisibility cloak using OpenCV 🪄"
85 posts
#2
Question
: "[Question] how do i get contour like this (blue)?"
59 posts
#3
Tutorials
: "[Tutorials] OpenCV notebooks running in your browser"
22 posts
#4
Discussion
: "[Discussion] Built OpenCV from source with CUDA support for a project — here's what I ran into"
15 posts
#5
News
: "[News] Announcing the OpenCV Perception Challenge for Bin-Picking"
11 posts
#6
Bug
: "[Bug] OpenCV help with cleaning up noise from a 3dprinter print bed."
5 posts
#7
Blog
: "[Blog] Review and suggest better approaches of blurring faces"
2 posts
Member Growth in r/opencv
Yearly
+3k members(17.8%)
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Last updated: September 4, 2026