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2013-01-17 01:57:30 -0500 commented answer How to segment a part of any object for counting purpose as per given binary image?

Very crude but solves the purpose. Also got a lot of ideas. Thanks.

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2013-01-10 05:46:47 -0500 commented question What are the algorithms to perform HDRI in an image ?

Is it this: http://docs.opencv.org/trunk/modules/...

I need to know is it so or HDRI is entirely different thing.

2013-01-09 23:48:10 -0500 commented answer How to segment a part of any object for counting purpose as per given binary image?

I need some time to start working on it. I got some other priorities. But this algo looks promising. Thanks.

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2013-01-09 07:00:15 -0500 asked a question What are the algorithms to perform HDRI in an image ?

Refer: http://en.wikipedia.org/wiki/High_dynamic_range_imaging In context of: http://www.omron-ap.co.in/application_solutions/category_details.asp?app_id=E533

I want to detect outer and inner diameter of several springs. For which I think I need the mentioned thing. And I think its not histogramEquilization().

2013-01-02 06:39:12 -0500 asked a question How to segment a part of any object for counting purpose as per given binary image?

Objective: I want to count image description from image below.

image description

What are the ideas can work here?

I tried FindContour(). It returns boundary. Further I need to use those contour points. Using matchShape() and Contour.slice() is not helping. Any working example for this case will be very helpful.

Any help will be appreciated.

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2012-07-12 10:55:38 -0500 asked a question Build error with cmake, OpenCV 2.4.2 on ubuntu 10.4 pc while Linking CXX executable ../../bin/opencv_perf_highgui.

I thought I should add my issue here.

Steps:

  1. I svn-checked out OpenCV version 2.4.2
  2. Followed: linux_install
  3. When I did 'make' I got errors, I did it again. I have the output here:

    [email protected]:~/OpenCV_svn/opencv/release$ make

    [ 4%] Built target opencv_core

    [ 5%] Built target opencv_ts

    [ 12%] Built target opencv_imgproc

    [ 15%] Built target opencv_highgui

    [ 18%] Built target opencvperfcore

    [ 20%] Built target opencvtestcore

    [ 23%] Built target opencvperfimgproc

    [ 27%] Built target opencvtestimgproc

    [ 28%] Built target opencv_flann

    Linking CXX executable ../../bin/opencvperfhighgui

    /usr/bin/ld: ../../lib/libopencvhighgui.a(caplibv4l.cpp.o): undefined reference to symbol 'v4l2_close'

    /usr/bin/ld: note: 'v4l2_close' is defined in DSO /usr/lib/libv4l2.so.0 so try adding it to the linker command line

    /usr/lib/libv4l2.so.0: could not read symbols: Invalid operation

    collect2: error: ld returned 1 exit status

    make[2]: * [bin/opencvperfhighgui] Error 1

    make[1]: * [modules/highgui/CMakeFiles/opencvperfhighgui.dir/all] Error 2

    make: * [all] Error 2

Earlier it was giving error on opencv_perf_core if followed install opencv in ubuntu 10.04. Some thing to do with cmake only perhaps.

I want to start quickly with OpenCV 2.4.2 in ubuntu. Can I have already built libraries to compile my cpp files using openCV like in windows.