English 中文(简体)
a) 简单开放式方案“错误”
原标题:"bus error" with a (very) simple opencv program (with Mac Os X)

我知道,“错误”常常是由于方案制定者。 但我确实无法在三个方面方案中看到这种错误:

int main(int argc, char** argv)
{
  IplImage *src = cvLoadImage("/tmp/Name.tiff", CV_LOAD_IMAGE_COLOR);
  IplImage* res = cvCreateImage( cvSize( 2, 2), IPL_DEPTH_8U, 3 );
  cvSaveImage("/tmp/image.tiff", src);
  return 0;
} 

我汇编如下:

gcc -I/Library/Frameworks/OpenCV.framework/Versions/A/Headers /usr/local/lib/libopencv_* test.c

执行bus误差

非常重要的是,如果我删除第2行(请上<编码>cvCreateImage),就没有问题了。

I m using opencv 2.3 and MacOs 10.8.5, gcc (i686-apple-darwin9-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. Building 5566)

问题回答

您没有核实:<代码>IplImage *src = cvLoadImage(>/tmp/Name.tiff”,CV_LOAD_IMAGE_COLOR;。 我假定,它没有找到文件或编码,或者没有其他东西。 一切都只是不良工程做法的结果。

$ cat src/bus.cpp 
#include <opencv2/opencv.hpp>

int main(int argc, char** argv)
{
  IplImage *src = cvLoadImage("/tmp/Name.tiff", CV_LOAD_IMAGE_COLOR);
  if(src==NULL) {
    printf("There is no /tmp/Name.tiff
");
    exit(1);
  }
  IplImage* res = cvCreateImage( cvSize( 2, 2), IPL_DEPTH_8U, 3 );
  cvZero(res);
  cvSaveImage("/tmp/Name.tiff", src);
  return 0;
} 
$ 
$ convert ~/ScanImage001.png /tmp/Name.tiff
$ ./bus 
$

我在澳门工作。





相关问题
Fastest method for running a binary search on a file in C?

For example, let s say I want to find a particular word or number in a file. The contents are in sorted order (obviously). Since I want to run a binary search on the file, it seems like a real waste ...

Print possible strings created from a Number

Given a 10 digit Telephone Number, we have to print all possible strings created from that. The mapping of the numbers is the one as exactly on a phone s keypad. i.e. for 1,0-> No Letter for 2->...

Tips for debugging a made-for-linux application on windows?

I m trying to find the source of a bug I have found in an open-source application. I have managed to get a build up and running on my Windows machine, but I m having trouble finding the spot in the ...

Trying to split by two delimiters and it doesn t work - C

I wrote below code to readin line by line from stdin ex. city=Boston;city=New York;city=Chicago and then split each line by ; delimiter and print each record. Then in yet another loop I try to ...

Good, free, easy-to-use C graphics libraries? [closed]

I was wondering if there were any good free graphics libraries for C that are easy to use? It s for plotting 2d and 3d graphs and then saving to a file. It s on a Linux system and there s no gnuplot ...

Encoding, decoding an integer to a char array

Please note that this is not homework and i did search before starting this new thread. I got Store an int in a char array? I was looking for an answer but didn t get any satisfactory answer in the ...

热门标签