I wrote some code in C++ and OpenCV 2.49 in Visual Studio 2013:
cv::Mat mask = Mat::zeros(tmp.size(), CV_8UC1);
modify mask that some elements are zeros and some elements are 255's
cv::vector<cv::vector<cv::Point> > contours;
cv::vector<cv::Vec4i> hierarchy;
cv:findContours(mask, contours, CV_RETR_CCOMP, CV_CHAIN_APPROX_NONE);
cv::imshow("Mask", mask);
When the method ends, following error appears:
Invalid address specified to RtlValidateHeap( 004D0000, 02EBD9D8 )
Project.exe has triggered a breakpoint.
I searched at stackoverflow and other platforms but can't find an answer!
I added the correct opencv path to the "path" environment variable: C:\opencv\build\x86\vc12\bin
and also to the project configurations:
C:\opencv\build\x86\vc12\lib
If I use merge/split from the opencv api it causes the same error, but in this case it is possible to allocate ther vector before going into the method. Then it works. In this case it's not possible to allocate the vector before, because i don't now the size.
I think the problem is that opencv allocates the memory and that's not in the correct heap, but i checked all dll's and paths. Do you have any other ideas?
Thanks in advance!
EDIT:
I replaced the opencv folder with a new downloaded opencv and it works, don't ask me why!
Is the cv::vector declaration valid? You should try std::vector instead of them.
Based on the given code, it is hard to decide what is causing the trouble. Could you provide more details?
Also note that this "function modifies the image while extracting the contours".
You should also check the properties below:
Right click on the Project
Properties - Configurational Properties - General: set Plattform Toolset to Visual Studio 2013 (v120)
Configurational Properties - C/C++ - Code Generation - set Runtime Library:
Multi-threaded Debug DLL (/MDd) for debug builds or Multi-threaded
DLL (/MD) for release build
Related
I want to use Caffe's tool, compute_image_mean to compute the mean image, but the command line tells me that:
This tool requires OpenCV; compile with USE_OPENCV.
I've searched the Internet, and one guy said:
Well, this message suggests that you have compiled caffe without
OpenCV, i.e; with USE_OPENCV set to 0 in your Makefile.config.
Recompile with that settings commented out (as is the default) and try
again. And of course you need to have OpenCV installed for this to
work.
But I have already set USE_OPENCV := 0 when I compiled my Caffe.
Could someone help me to solve this problem?
I think you have misread the statement you found, it says you are compiling without OpenCV, which means WITH_OPENCV := 0 , to compile Caffe with OpenCV you have to set WITH_OPENCV := 1 , or just comment it out.
I met the same error information when I used caffe to do my work. I solved this problem by modifying something in the "Makefile.config" file.
The same as the lastest answer， I commented this line "USE_OPENCV := 0" with "#", so after compiling I can use OpenCV's function. I can use this way to deal with it, but you said that when you did this action and got another error. I think you didn't install your OpenCV correctly. Maybe it's your version problem or environment variable error. You can try to install OpneCV again.
I met the same error when I tried to make lmdb.
At first I uncomment "USE_OPENCV:=0" in the Makefile.config and recompile for many times, but it does not help.
So I try to comment "USE_OPENCV:=0" with # and recompile the caffe, it success.
I know... Another one of this... But no one else's error is the same as mine and I've been trying to build opencv with mingw32 for days now.
When building OpenCV with mingw the command mingw32-make fails at some point trying to compile sources\modules\ts\src\ts_gtest.cpp with error pic bellow:
I've tried following several tutorials, but none work cleanly and this is the best I could get stuff to work.
What I did:
Installed Mingw and added C:\Mingw\bin\ to PATH environment variable.
Installed CMake and added it too to PATH.
Extracted OpenCV to C:\ and created forlder C:\opencv\mingwBuild\
In CMake-GUI I define source folder as C:\opencv\sources\ and build folder as C:\opencv\mingwBuild\.
Hit Configure and select Mingw Makefiles, with 'Use default native compilers' (have also specified compilers explicitly and the result is the same.).
Hit Generate, which creates the Makefile.
I open C:\Mingw\msys\1.0\msys.bat to have a console with all variables loaded (have also tried directly from a simple cmd.exe, given that PATH is set for mingw, but I get the same error in compilation). Navigate to C:\opencv\mingwBuild\ and run mingw32-make.
And that's where the error shows up after a while. Any ideas?
Turns ou gTest was not compiling in Mingw for some reason.
As I don't intend to test my code (for now) I removed opencv_ts from instalation (by deselecting it in Cmake, after configuring and before generating).
Someone mentions, in the first link #Dan Masek refers, that GTest has this issue with type conversion under mingw. They say that you can edit ts_gtest.cpp to apply the correct conversion, according to error message. That may be a solution if you need this module.
Another comment in #Dan Masek's second link mentions that gcc's version 5 surpasses the issue, which version 4 has. So, getting a hold of such distro may also be a solution.
For me it seems to be fixed by applying this fix: https://github.com/msk-repo01/opencv/commit/9a1835ce6676836ce278d723da4ff55a8f900ff1
(Also see: https://github.com/opencv/opencv/issues/8105)
The fix basically replaces the "_RTL_CRITICAL_SECTION" by "_CRITICAL_SECTION" for MingW compilers in modules/ts/include/opencv2/ts/ts_gtest.h in the following way:
The lines
// assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
// This assumption is verified by
// WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
struct _RTL_CRITICAL_SECTION;
(around line 723 in OpenCV 3.2.0 release from Dec. 2016) are replaced by
# if GTEST_OS_WINDOWS_MINGW
// MinGW defined _CRITICAL_SECTION and _RTL_CRITICAL_SECTION as two
// separate (equivalent) structs, instead of using typedef
typedef struct _CRITICAL_SECTION GTEST_CRITICAL_SECTION;
# else
// assuming CRITICAL_SECTION is a typedef of _RTL_CRITICAL_SECTION.
// This assumption is verified by
// WindowsTypesTest.CRITICAL_SECTIONIs_RTL_CRITICAL_SECTION.
typedef struct _RTL_CRITICAL_SECTION GTEST_CRITICAL_SECTION;
# endif
and
_RTL_CRITICAL_SECTION* critical_section_;
is replaced by
GTEST_CRITICAL_SECTION* critical_section_;
I try to use the well known "jpeglib" now available in version 9.
Overview: I am a programming starter in C using MS Visual C++ 2010 Express and read a C-book finally. My goal is to compress a RGB(.bmp)-file into JPEG. So I downloaded the jpeglib (v9), read all the install and so on *.txt-files. It was possible to compile the C-files to get cjpeg.exe, djpeg.exe, jpeg.lib and so on.
After this success I tried to use the example.c to get deeper into the jpeg and to control the compression. -> It did not work. Then I tried to use the jpeglib included in OpenCV. Same non working result, while the OpenCV code samples are compiled successfully.
I googled lots of samples, problem solutions and tips how to use jpeglib. Most helpful information I found here. But in the result I was still not able to compile my own jpeg-tool or example.c (rewriting the write_JPEG_file() function ).
Question: What in the basics could be wrong, when every other programmer just uses #include "jpeglib.h" in their codes to run the jpeg functions successfully? For me including this file seems not to be enough. Because of that I have to ask you and to relaunch a one year old Question that also did not helped solving my probs. I can not give you a specific error message because of multiple attempts to solve those issues.
Here is my current MS-VC++2010 config for using OpenCV 2.4.6:
C/C++ -> General -> Additional Include Directories:
C:\opencv\build\include
C:\opencv\build\include\opencv
C:\opencv\build\include\opencv2
C:\opencv\include
C:\opencv\include\opencv
C:\opencv\include\opencv2
C:\opencv\3rdparty\libjpeg
Linker -> General -> Additional Library Directories:
C:\opencv\build\x86\vc10\lib
Linker -> Input -> Additional Dependencies:
opencv_core246d.lib
opencv_imgproc246d.lib
opencv_highgui246d.lib
opencv_ml246d.lib
opencv_video246d.lib
opencv_features2d246d.lib
opencv_calib3d246d.lib
opencv_objdetect246d.lib
opencv_contrib246d.lib
opencv_legacy246d.lib
opencv_flann246d.lib
jpeg.lib [this I added into C:\opencv\build\x86\vc10\lib]
At last some threads I have already read:
Compressing IplImage to JPEG using libjpeg in OpenCV - 1
Compressing IplImage to JPEG using libjpeg in OpenCV - 2
Need help in reading JPEG file using libjpeg
how can i use jpeg_mem_src, jpeg_mem_dest in libjpeg-turbo?
If there is something missing you want to know I will do my best to add this information!
EDIT - Some error messages:
1>jpeg_coder.obj : error LNK2001: unresolved external symbol ""unsigned char * image_buffer" (?image_buffer##3PAEA)".
1>jpeg_coder.obj : error LNK2001: unresolved external symbol ""int image_height" (?image_height##3HA)".
1>jpeg_coder.obj : error LNK2001: unresolved external symbol """int image_width" (?image_width##3HA)".
First symbol should be typedefed in jpeglib.h as JSAMPLE FAR *JSAMPROW,
second and third are defined in rdjpgcom.c as unsigned int image_height, image_width;
Maybe, with a lot of luck, I figured out what is need to be done to get jpeglib running. In the current state I have to check and double check whether my problem solution is correct or not. At this point thank you very much for your attention for my issues. As soon as I am sure with the solution I will post it.
Problem Solution: I did not setup OpenCV correctly for using jpeglib. The mistake I made was to link the wrong *.lib-file. The proper file for linking is libjpegd.lib. Too bad that jpeglib v6.2 is included in OpenCV 2.4.6 instead of v9. The hint to add HAVE_JPEG to use jpeglib functions inside OpenCV I ignored completely. For now the problem is solved.
Problem Solution: I did not setup OpenCV correctly for using jpeglib. The mistake I made was to link the wrong *.lib-file.
The proper file for linking is libjpegd.lib.
Too bad that jpeglib v6.2 is included in OpenCV 2.4.6 instead of v9. The hint to add HAVE_JPEG to use jpeglib functions inside OpenCV I ignored completely. Thanks to all who tried solving this issue. For now the problem is solved.
I'm following the instructions in How to build applications with OpenCV inside the Microsoft Visual Studio but I'm getting errors from the sample code:
error C2065: 'CAP_PROP_FRAME_WIDTH' : undeclared identifier
error C2065: 'CAP_PROP_FRAME_HEIGHT' : undeclared identifier
error C2065: 'CAP_PROP_FRAME_COUNT' : undeclared identifier
I think the identifiers that are undeclared should be declared in highgui so why am I not getting them despite the demo code's #include <opencv2/highgui/highgui.hpp>?
Here are the steps I have taken.
I've unpacked the OpenCV (Version 2.4.6) files into C:\OpenCV, run setx -m OPENCV_DIR C:\OpenCV\Build\x64\vc11 from an elevated command prompt and added %OPENCV_DIR%\bin to my path (following instructions in Installation in Windows). Then using the Property pages (View -> Property Pages or Shift-F4) set to 'All Configurations'
I've added $(OPENCV_DIR)\..\..\include to my C/C++ Additional Include Directories
I've added $(OPENCV_DIR)\lib to the linker Additional Library Directories
I've cut-an-paste the directory listing of the lib files in C:\OpenCV\build\x64\vc11\lib into my input Additional Dependencies
I've copied the sample code from the article into a new C++ console app (with ATL). I had to change one line in the template code from int _tmain(int argc, _TCHAR* argv[]) to int _tmain(int argc, char* argv[])
I think the identifiers that are undeclared should be (are) declared in highgui so why am I not getting them despite the demo code's #include <opencv2/highgui/highgui.hpp>?
Other people having similar issues getting this sample code working in the How to build applications with OpenCV inside the Microsoft Visual Studio note seem to fall over with link errors (e.g. here and here) but I am getting past the linker.
========== EDIT ==========
There appear to be more insurmountable difficulties with the sample code. It is documented as a simple example to load and display an image whose path is supplied as the sole argument to main, while the code listing itself is video code requiring four command line arguments (i.e. it first checks and stops if argc != 5). I've submitted a documentation bug. I think the sample code listing should have been be taken from this: https://github.com/Itseez/opencv/blob/master/samples/cpp/tutorial_code/introduction/display_image/display_image.cpp
Try with CV_CAP_ or cv::CAP_... It looks like there were some changes aiming to improve consistency of constants in OpenCV...
I am using the opencv 2.4.6 and this has helped me do the trick
change CAP_PROP_FRAME_WIDTH into CV_CAP_PROP_FRAME_WIDTH
change CAP_PROP_FRAME_HEIGHT into CV_CAP_PROP_FRAME_HEIGHT
change CAP_PROP_FRAME_COUNT into CV_CAP_PROP_FRAME_COUNT
and similarly if there are any other cap prop keywords into cv cap prop keywords
try this.
Why I try to run the following OpenCV program, it shows the following error :
ERROR:
test_1.exe - Application Error
The application failed to initialize properly (0x80000003).
Click on OK to terminate the application.
CODE:
#include "cv.h"
#include "highgui.h"
int main()
{
IplImage *img = cvLoadImage("C:\\face.bmp");
cvSetImageROI(img, cvRect(100,100, 100, 100));
cvAddS(img, cvScalar(50), img);
cvResetImageROI(img);
cvShowImage("Test", img);
cvWaitKey(0);
return 0;
}
When i press F5(im using vs2008express), the program encounters a break point...i have attached a picture...dont know, whether, it will help or not.
Error Snapshot Link
It is not that, only this program is producing this error, but also any kind of image manipulation funciton containing (OpenCV)program is resulting in this sitution.
Such as : cvSmooth
one last thing, it there any dedicated OpenCV forum or sth like that?
I am an administrator.So, yes, ive the permission.
a version mismatch.
sorry, i didn't get it?Version mismatch with what?
But, i have found the error using dependency walker.
Warning: At least one module has an unresolved import due to a missing export
function in a delay-load dependent module.
and also found that, it is a common problem, and found some info in the FAQ of DW...
Why am I seeing a lot of applications where MPR.DLL shows up in red under
SHLWAPI.DLL because it is missing a function named WNetRestoreConnectionA?
I also get a "Warning: At least one module has an unresolved import due to
a missing export function in a delay-load dependent module" message.
Function name : WNetRestoreConnectionA
But there is no guideline about how to solve it. Though, they say, it is not a problem.
i googled a little and found a suggestion.It says,
Turn off your compilers setting to assume you are programming for Win9x.
(I just lost which setting but it is not that difficult, use a #define...)
But i have no idea, how to do that in Visual Studio 2008 express.
Any suggestion how to solve it...
This usually indicates a problem with a dll; either you don't have permission, or a version is mismatched. Try running as Administrator to see if it is a permissions problem. If that doesn't help, try using the Dependency Walker.