Unhandled exception at 0x52f9e470 in project1.exe : 0xC000001D : Illegal instruction - opencv

Question

i am trying to detect an object using opencv in c++ but i am getting an error :
Unhandled exception at 0x52f9e470 in project1.exe : 0xC000001D : Illegal instruction.
using windows 7 32 bit,opencv 2.4.3,visual studio (c++) 2010 and my code is :
#include <opencv\cv.h>
#include <opencv\highgui.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <math.h>
#include <float.h>
#include <limits.h>
#include <time.h>
#include <ctype.h>
// Create a string that contains the exact cascade name
// Contains the trained classifer for detecting hand
const char *cascade_name="D:/31dec12/hand.xml";
//The function detects the hand from input frame and draws a rectangle around the detected portion of the frame
void detect_and_draw( IplImage* img )
{
// Create memory for calculations
static CvMemStorage* storage = 0;
// Create a new Haar classifier
static CvHaarClassifierCascade* cascade = 0;
// Sets the scale with which the rectangle is drawn with
int scale = 1;
// Create two points to represent the hand locations
CvPoint pt1, pt2;
// Looping variable
int i;
// Load the HaarClassifierCascade
cascade = (CvHaarClassifierCascade*)cvLoad( cascade_name, 0, 0, 0 );
// Check whether the cascade has loaded successfully. Else report and error and quit
if( !cascade )
{
fprintf( stderr, "ERROR: Could not load classifier cascade\n" );
return;
}
// Allocate the memory storage
storage = cvCreateMemStorage(0);
// Create a new named window with title: result
cvNamedWindow( "result", 1 );
// Clear the memory storage which was used before
cvClearMemStorage( storage );
// Find whether the cascade is loaded, to find the hands. If yes, then:
if( cascade )
{
// There can be more than one hand in an image. So create a growable sequence of hands.
// Detect the objects and store them in the sequence
CvSeq* hands = cvHaarDetectObjects( img, cascade, storage,
1.1, 2, CV_HAAR_DO_CANNY_PRUNING,
cvSize(40, 40) );
// Loop the number of hands found.
for( i = 0; i < (hands ? hands->total : 0); i++ )
{
// Create a new rectangle for drawing the hand
CvRect* r = (CvRect*)cvGetSeqElem( hands, i );
// Find the dimensions of the hand,and scale it if necessary
pt1.x = r->x*scale;
pt2.x = (r->x+r->width)*scale;
pt1.y = r->y*scale;
pt2.y = (r->y+r->height)*scale;
// Draw the rectangle in the input image
cvRectangle( img, pt1, pt2, CV_RGB(230,20,232), 3, 8, 0 );
}
}
// Show the image in the window named "result"
cvShowImage( "result", img );
}
// A Simple Camera Capture Framework
int main()
{
// Gets the input video stream from camera
CvCapture* capture = cvCaptureFromCAM( CV_CAP_ANY );
// Checks if the input stream is obtained
if( !capture )
{
fprintf( stderr, "ERROR: capture is NULL \n" );
getchar();
return -1;
}
// Show the image captured from the camera in the window and repeat
while( 1 )
{
// Get one frame
IplImage* frame = cvQueryFrame( capture );
// Cecks if a frame is obtained
if( !frame )
{
fprintf( stderr, "ERROR: frame is null...\n" );
getchar();
break;
}
// Flips the frame into mirror image
cvFlip(frame,frame,1);
// Call the function to detect and draw the hand positions
detect_and_draw(frame);
//If ESC key pressed, Key=0x10001B under OpenCV 0.9.7(linux version),
//remove higher bits using AND operator
if( (cvWaitKey(10) & 255) == 27 )
break;
}
// Release the capture device housekeeping
cvReleaseCapture( &capture );
return 0;
}

Answer 1

What kind of cpu are you using? Last time I had the error: 0xC000001D : Illegal instruction was related to the SSE instruction used in the code. Some new SSE instruction are not implemented at AMD processors e.g. So you can fix this by rebuilding opencv without SSE support.

Answer 2

I also have this problem when using cv::Mat(...)
The same exception throw at
size_t esz = CV_ELEM_SIZE(_type), esz1 = CV_ELEM_SIZE1(_type);
Not so sure why but after changing Visual C++ Project floating point model from precise to fast, the problem solve.