OpenCV Demo 2 was a tools app developed by Barry Thomas. It was removed from Google Play Jan 6, 2018 and is no longer available for download.
Download Statistics
OpenCV Demo 2 had been downloaded 22 thousand times before it became unavailable.
User Ratings
OpenCV Demo 2 was rated 3.96 out of 5 stars, based on 130 ratings.
App Information
OpenCV Demo 2 was free to download. The APK download size was 446.87 kB. The last available version was 2.11. The last update was on April 10, 2013.
Technical Requirements
OpenCV Demo 2 required Android 2.3+ or higher. The app had a content rating of Unrated Maturity. The app had been available on Google Play March 2013.
Description
A demo app, based partly on the samples provided with the OpenCV library (Java wrapper version, v2.4.4). Demonstrates the use of Canny edge detection, Hough lines, Hough circles, 'in-range' colour detection, separate channel view, face detection, good-features-to-track and optical flow.
This app replaces the earlier version which has now been removed from play.google.
Larger screens (eg tablets) may be slow due to the amount of data being processed.
Read more about the app at http://www.barrythomas.co.uk/machinevision.html - Source code of the key sections of the frame processing loop are on the web site.
The app was written mainly as a learning exercise and is provided with no guarantee of road worthiness or fitness for purpose. Let me know if you want a copy of the source code.
Recent changes: 2.11 Small fixes
2.1 Added optical flow.
2.0 First release of this version, written for OpenCV2.4.4 Manager and Android 4.2.
Changes from the earlier version: Hough lines, circles and Canny edges now on separate menu options; face detect now copies the largest face in view to the top left of the screen, then if it is not the same as the previous largest face, it saves it to the Pictures director; RGB separate channel view now removed.
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★★★★★
very good demo very good code and very nice writer! thanks a lot for share!
★★★★★
Very nice demo Very nice demo to show off the capabilities openCV provides! You should consider putting up the source on GitHub or BitBucket.
★★★★★
Excellent demo, I used this app in a middle school demo relating middle school math concepts to real applications like image processing. I should note that I pinged Barry to ask permission to use his app as part of demo and he gave his ok and even sent me the code.
★★★★★
Great demo I noticed that during face detection it lost my face if I rotated the screen. Probably not worth fixing due to process speeds though...
★★☆☆☆
Can't change mode Not sure there are other way. Tried everything. Can't change to other mode like canny edge detector. Asus ZenFone 5
★★☆☆☆
demos nothing intresting
★★☆☆☆
When I open it all it has is this fps thing like the coding stage it really needs fixing
★★☆☆☆
N inisialized
Technologies used by OpenCV Demo 2
OpenCV Demo 2 is requesting 3 permissions and is using 1 libraries.
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