lakshmi's profile - activity

Hi,

I have tried the below code for comparing images taken from iphone camera. It is working fine. But the problem here is like taking long time for comparing images. Please suggest me the corrections in the below code to compare the images quickly or suggest any alternate methods for image comparison of camera images.

I have tried the -(NSArray)getRGBAsFromImage:(UIImage)image atX:(int)xx andY:(int)yy method for comparing images through the below link.

http://stackoverflow.com/questions/15... Help is highly appreciable.

Thanks in advance.

Hi , Thanks a lot for your solution.I have added the code like as you mentioned above.Please just verify whether it is correct or not.

 if (_videoCapture && _videoCapture->grab())
    {
        for(int i=0;i<10;i++)
        {
        (*_videoCapture) >> _lastFrame;
        }
         (*_videoCapture) >> _lastFrame;
        imshow("fresh frame",_lastFrame.clone());
        [self processFrame];
}

I have tried this. But still I am getting the same delay. Correct me if there is any wrong in the code.

Thanks in advance.

Hi,

I am using OpenCV's VideoCapture , but the problem I am facing is that the image that I take at a certain moment does not show the latest thing that the camera sees. That is, if I take an image at timestamp t, it shows what the camera saw at timestamp (t - delta), so to say. How can I resolve this delay issue in processing frames. I have searched in google and many of them mentioned like may be due to _videoCapture->grab() function. If it so, please suggest me the alternative for _videoCapture->grab()) function to reduce this delay time? Help is highly appreciable.

Thanks in advance.

Hi ,

I found the below image along with the url http://code.opencv.org/projects/openc... in the web for drawing detected objects through openCV. I have tried the below iOS source examples mentioned in the url http://eosgarden.net/en/opensource/op...

http://niw.at/articles/2009/03/14/usi...

But if Iam trying the above iOS source examples through the urls , Iam getting some other result like edge detection . The output image is like below

Please suggestion any solution or tutorials to obtain like the first image. Help is highly appreciable.

Thanks in advance

Hi,

     Whether openCV for object recognition in iOS supports xcode 5 and highest versions? If so, please suggest any documentations or tutorial links.

Thanks & Regards, Lakshmi.

Hi,

I have downloaded openCV from the below link for iOS. https://github.com/macmade/OpenCV-iOS. When I am trying to run this project in XCode 5.0.2, iam getting the following error. clang: error: no such file or directory: '/Users/administrator/Downloads/OpenCV-iOS-master/opencv-2.0/iPad/OpenCV/lib/iPhoneOS/lib/libcv.a' clang: error: no such file or directory: '/Users/administrator/Downloads/OpenCV-iOS-master/opencv-2.0/iPad/OpenCV/lib/iPhoneOS/lib/libcxcore.a'

Whether OpenCV supports the latest version of XCode 5 and 6 ? Please suggest me to resolve this issue. Thanks in advance.