Rekha jayaprakash | 14 Jun 20:22 2012
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Error message in Xcode



Hello all,

I'm getting the below pasted error message when i tried to build a sample program in Opencv using Xcode IDE... can anyone point out the problem...


Ld build/Debug/re normal x86_64

cd /Users/rekhajayaprakash/Desktop/re

setenv MACOSX_DEPLOYMENT_TARGET 10.6

/Developer/usr/bin/g++-4.2 -arch x86_64 -isysroot /Developer/SDKs/MacOSX10.6.sdk -L/Users/rekhajayaprakash/Desktop/re/build/Debug -L/opt/local/lib -F/Users/rekhajayaprakash/Desktop/re/build/Debug -F/Library/Frameworks/OpenCV.framework -filelist /Users/rekhajayaprakash/Desktop/re/build/re.build/Debug/re.build/Objects-normal/x86_64/re.LinkFileList -mmacosx-version-min=10.6 -framework OpenCV -o /Users/rekhajayaprakash/Desktop/re/build/Debug/re


ld: framework not found OpenCV

collect2: ld returned 1 exit status

Command /Developer/usr/bin/g++-4.2 failed with exit code 1

thanks in advance..
--
Best Regards,
Ms. Rekha Jayaprakash





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Nagi | 14 Jun 19:31 2012
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Executable does not run outside of Visual Studio

Hi, 

I have an c++ opencv program that runs without any problems when I compile it from Visual Studio 2010. It
basically reads avi videos and outputs a frame if there is a motion detection.
I created an executable so that I run it on a seperate machine. I included the dynamic libraries needed. When
I run the executable, it shows that it is finding the video by writing the path of the video in the output
window, but then it gives me an error saying:
OpenCV error: Bad Argument <Array should be CvMat or IplImage> in unknown function, file
..\..\..\ocv\opencv\modules\core\src\array.cpp, line 1237

This error does not show up when I run the program from Visual Studio. I don't know if I'm missing some dlls for
the .exe file. The dlls that I included are  
opencv_imgproc220d.dll
opencv_highgui220d.dll
opencv_features2d220d.dll
opencv_core220d.dll
opencv_calib3d220d.dll
msvcr100d.dll
msvcp100d.dll
kernel32.dll
shlwapi.dll

I appreciate any feedback.

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sbemail | 14 Jun 15:46 2012

Implementation of dct in opencv

i"m trying to implement dct in a jpeg image. I have this code so far
unfortunately there's an error.

Mat hostImage = imread(argv[1], 1);
Mat output = cvCreateMat(hostImage.size().width, hostImage.size().height,
CV_8UC1);
cvDCT(&hostImage, &output, 0);
namedWindow("DCT Image", CV_WINDOW_AUTOSIZE);
cvMoveWindow("DCT Image", 60, 50);
imshow("DCT Image", output);
waitKey(0);
destroyWindow( "DCT Image" );
output.release();

 Can anyone give comments on how to solve this.

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rekha | 14 Jun 18:54 2012
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OpenCV 2.3.1 installation on Mac OSx 10.6.8



Hello all,

I'm new to Mac OSx and i'm trying to work on OpenCV with Xcode 3.2.6 IDE. I tried many ways to configure opencv with xcode but still im not able to make it work. Please help me out in configuring Opencv with xcode. I googled it and tried various methods still it is popping out lot of error messages. can anyone give me clear steps to install and configure and make the program work....

your help is greatly appreciated !!! Thanks in advance.

Best,
Rekha 


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yuhanz2003 | 14 Jun 22:23 2012

OpenCV installation with SURF feature support on Ubuntu

Hi all,

I just installed OpenCV-2.4, and compiled and run my code,
but reached an error saying: "OpenCV-2.4.0/modules/legacy/src/features2d.cpp:77: error: (-213)
OpenCV was built without SURF support in function cvExtractSURF".

The code was working previously with OpenCV-2.2 on Windows.

Looks like I need to rebuild OpenCV with SURF. so, what are the parameters that I will need to enable in order
to make SURF feature work?

Thank you.

Yuhan

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pattern | 14 Jun 16:52 2012
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free video-processing software for spatial modifications

Hi there,
would anyone please give me a link to download a free video processing software that enables me to do some
spatial modifications to video frames(e.g., crop or mask a ROI).

Thanks in advance

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verma.shubhang | 13 Jun 14:39 2012
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Image Segmentation

Sir
I am new to opencv so if you could kindly guide me how to use the grow cut algorithm function in any sample
image. 

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jricardojr | 13 Jun 23:20 2012
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Affine Transform

Hello,

I'm working on a project where two images are given, where the second image is a modification of the first
one. This modification can be anything, like a filter, pixel modification or an affine transform, like
rotation or translation.

Does anybody knows if is it possible to use OpenCV in order to check if the transformation was an affine
transform, like rotation, for example, giving-me the rotation angle. 

Thanks a lot!

Jose Ricardo

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willemmerson | 14 Jun 12:06 2012
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recommended HD camera?

Hi, I want to purchase a camera with resolution higher than 640x480 for my project, but not sure which one
would be best? I wondered if anyone has had any experience with HD cameras?
I was looking at the Microsoft lifecam cinema camera, but it has autofocus which is going to mess up my
background subtraction unless I can control it somehow.
I also wondered why webcams have a much higher still image resolution than video image resolution. Are they
just interpolating?

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richie11122 | 13 Jun 16:52 2012

HoG+SVM -> HOGDescriptor::setsvmdetector

Hi,
I want to feed the HOGDescriptor (CPU interface) with a trained SVM. The HOG Descriptor offers a method
setSVMDetector(const vector<float>& detector) and I'm asking what has to be in vector<float>& detector?
All I found on the web was
http://opencv-users.1802565.n2.nabble.com/training-a-HOG-descriptor-td6363437.html , but
there is no confirmation about what to do.

I have a trained SVM which can create a xml file and in there are basically stored the
- support vectors
- alpha values
- rho
Of course, everything can also be loaded again, but only the support vectors are accessible from the
interface cvSVM that I use.

I wrote each support vector in a row and got a matrix A of support vectors. Now I've done [alpha1 alpha2
...alphaN] * [A] which gave me one vector. I assumed that rho is the bias which has to be added or
concatenated to this vector and then handed over to setsvmdetector().
But this doesn't work at all.

Please, has anyone an idea or any suggestion?
Please let me know.

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floyd3237 | 13 Jun 17:21 2012
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CvFuzzyMeanShiftTracker Module

Has anybody gotten the CvFuzzyMeanShiftTracker working ? Is there an example of how to make it work and the
order of the function calls ?

Thanks 

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Gmane