OpenCV Demo 2
Free AppAbout OpenCV Demo 2
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.
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.
All Application Badges
Free
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Android
2.3+
2.3+
Bug
buster
buster
Android app
App History & Updates
What's Changed
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.
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.
More downloads OpenCV Demo 2 reached 10 000 - 50 000 downloads
More downloads OpenCV Demo 2 reached 5 000 - 10 000 downloads
More downloads OpenCV Demo 2 reached 1 000 - 5 000 downloads
What are users saying about OpenCV Demo 2
Q
by Q####:
by Q####:
Great Demo app. Love it and like it
Q
by Q####:
by Q####:
demos nothing intresting
Q
by Q####:
by Q####:
Need to download opencv manager
A
by A####:
by A####:
Can't change mode
Q
by Q####:
by Q####:
N inisialized
R
by R####:
by R####:
Loveit
G
by G####:
by G####:
Even BGR preview has 5 FPS, other tests are so slow that it's hardly usable.
T
by T####:
by T####:
Nice
L
by L####:
by L####:
Not sure there are other way. Tried everything. Can't change to other mode like canny edge detector. Asus ZenFone 5
N
by N####:
by N####:
Nice - can you plublish source?
S
by S####:
by S####:
Good reference for projects
D
by D####:
by D####:
If the frontal camera is enabled then image displayed on the screen is rotated by 180 for some reason.
U
by U####:
by U####:
Nice demo
D
by D####:
by D####:
Good work dude.
P
by P####:
by P####:
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.
O
by O####:
by O####:
very good code and very nice writer! thanks a lot for share!
O
by O####:
by O####:
I noticed that during face detection it lost my face if I rotated the screen. Probably not worth fixing due to process speeds though...
R
by R####:
by R####:
Very nice demo to show off the capabilities openCV provides! You should consider putting up the source on GitHub or BitBucket.
O
by O####:
by O####:
Even BGR preview has 5 FPS, other tests are so slow that it's hardly usable.
by Q####:
Sounds like it is a good App but sadly on my Mobile(Samsung S6) it always gives the error: OpenCV was not initialised correctly. Application will be shut down. What can i do against this issue? Hope this issue can be fixed.