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asked 2013-11-26 01:16:19 -0600

Aruna Vijay gravatar image

handling camera buffer

In my project i already have camera output in a buffer ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height) // i need to do processing on frames

IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);

cvSetData( ReferenceImage, RefFrame, width );
cvSetData( CurrentImage, CurrentFrame, width );  //here already create image header has allocated size so what is the reason for the crash

after core dump i get the message

OpenCV Error: Bad argument (Unknown array type) in cvarrToMat Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698 terminate called after throwing an instance of 'cv::Exception' what(): Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat

handling camera buffer

In my project i already have camera output in a buffer ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height) // i need to do processing on frames

IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);

cvSetData( ReferenceImage, RefFrame, width );
cvSetData( CurrentImage, CurrentFrame, width );  //here already create image header has allocated size so what is the reason for the crash
crash 
//finally i do this 

    cvReleaseImageHeader(&ReferenceImage);
   cvReleaseImageHeader(&CurrentImage);

after core dump i get the message

OpenCV Error: Bad argument (Unknown array type) in cvarrToMat Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698 terminate called after throwing an instance of 'cv::Exception' what(): Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat

click to hide/show revision 3
coded intended properly

updated 2013-11-26 01:28:49 -0600

handling camera buffer

In my project i already have camera output in a buffer

ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height) // i need to do processing on frames

{
    IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
    // my camera input is Grey so i keep all at same depth 
    cvSetData( ReferenceImage, RefFrame, width );
 cvSetData( CurrentImage, CurrentFrame, width );  //here already create image header has allocated size so // fine until here 
 
cvAbsDiff(ReferenceImage, CurrentImage, ResultImage);

 
// here is the culprit for crash 

          // can somebody point what is the reason for the crash 
going wrong here    
 
//finally i do this  
 
    cvReleaseImageHeader(&ReferenceImage);
 cvReleaseImageHeader(&CurrentImage);
    cvReleaseImageHeader(&ResultImage);

 
}
after core dump i get the message 
 
OpenCV Error: Bad argument (Unknown array type) in cvarrToMat
Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698
terminate called after throwing an instance of 'cv::Exception'
  what():  Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat

handling camera buffer

In my project i already have camera output in a buffer

ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height) { height)

{

IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);

// my camera input is Grey so i keep all at same depth cvSetData( ReferenceImage, RefFrame, width ); cvSetData( CurrentImage, CurrentFrame, width ); // fine until here 

cvAbsDiff(ReferenceImage, CurrentImage, ResultImage);

ResultImage); // here is the culprit for crash
// can somebody point what is going wrong here

here

//finally i do this 

    cvReleaseImageHeader(&ReferenceImage);
cvReleaseImageHeader(&CurrentImage);
    cvReleaseImageHeader(&ResultImage);

} after core dump i get the message

OpenCV Error: Bad argument (Unknown array type) in cvarrToMat Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698 terminate called after throwing an instance of 'cv::Exception' what(): Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat

click to hide/show revision 5
retagged

updated 2013-11-26 02:44:00 -0600

berak gravatar image

handling camera buffer

In my project i already have camera output in a buffer

ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height)

{

IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);

// my camera input is Grey so i keep all at same depth cvSetData( ReferenceImage, RefFrame, width ); cvSetData( CurrentImage, CurrentFrame, width ); // fine until here 

cvAbsDiff(ReferenceImage, CurrentImage, ResultImage); 
       // here is the culprit for crash  
      // can somebody point what is going wrong here

//finally i do this 

    cvReleaseImageHeader(&ReferenceImage);
cvReleaseImageHeader(&CurrentImage);
    cvReleaseImageHeader(&ResultImage);

} after core dump i get the message

OpenCV Error: Bad argument (Unknown array type) in cvarrToMat Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698 terminate called after throwing an instance of 'cv::Exception' what(): Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat

click to hide/show revision 6
No.6 Revision

updated 2013-11-26 04:31:37 -0600

Haris gravatar image

handling camera buffer

In my project i already have camera output in a buffer 

ProcessFrames(unsigned char *RefFrame,unsigned char *CurrentFrame, int width,int height)
 
{
 
height)

{


    IplImage *ReferenceImage = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *CurrentImage     = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);
 IplImage *ResultImage       = cvCreateImageHeader(cvSize(width,height),IPL_DEPTH_8U,1);

 
 // my camera input is Grey so i keep all at same depth 
    cvSetData( ReferenceImage, RefFrame, width );
    cvSetData( CurrentImage, CurrentFrame, width ); // fine until here 
 
 cvAbsDiff(ReferenceImage, CurrentImage, ResultImage); 
        // here is the culprit for crash  
       // can somebody point what is going wrong here
here    

//finally i do this 

        cvReleaseImageHeader(&ReferenceImage);
    cvReleaseImageHeader(&CurrentImage);
        cvReleaseImageHeader(&ResultImage);
}

 
//finally i do this 
 
    cvReleaseImageHeader(&ReferenceImage);
cvReleaseImageHeader(&CurrentImage);
    cvReleaseImageHeader(&ResultImage);

 
}
after core dump i get the message 
 
OpenCV Error: Bad argument (Unknown array type) in cvarrToMat
Downloads/opencv-2.4.7/modules/core/src/matrix.cpp, line 698
terminate called after throwing an instance of 'cv::Exception'
  what():  Downloads/opencv-2.4.7/modules/core/src/matrix.cpp:698: error: (-5) Unknown array type in function cvarrToMat
cvarrToMat
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