joonho1145's profile - activity

Have multiple photos to create a panoramic picture gohanda. Source reference to the site below were implemented.

http://ramsrigoutham.com/2012/11/22/p...

The left image and the reference image can be synthesized on the right side. What I wonder is this standard to transform the above right picture source To paste the picture to the left, how do you modify the source? Please answer.

I'm used Stitcher class. build it. and CUDA install GPU run.

code

void ThreadFunc(void* arg)
{
 ...
 Stitcher stitch = CreateDefault(true);
 stitch.stitch( vImg, rImg );
 ...
}

void main()
{
for(...)
 _beginThread( ThreadFunc, 0, this );
}

Thread running is dying. how to Muli thread stitching?

I use Stitcher class. stitch function to use an error occurs, In knnMatchSingle function caller_t func = callers [query.depth ()]; The value of func is output when you call the 0x00000000 value.

The problem I do not opencv2.4.9 What is the reason not in opencv3.0 alpha?

thanks.

Cuda toolkit install. The graphics card must support cuda. (NVIDIA GTX xxx) Cmake use opencv build.

int num_device = getCudaEnabledDeviceCount(); //GPU is must num_device == 1 if(num_device > 0) Stitcher stitcher = Stitcher::createDefault(true); //try_use_gpu //use GPU else Stitcher stitcher = Stitcher::createDefault(false); //use only CPU Stitcher::Status status = stitcher.stitch(imgs, rois, pano);

it is fast.

I use opencv to build a stitcher class to create a panorama image.

The camera image in real time to produce multiple Thread to make the panorama image is an error to use a stitch function.

The same error occurs when the graphics card is one haneungeot because of overlapping GPU is used.

How do I use multiple threads in Stitch?

Errors I got:

OpenCV Error: Gpu API call (unspecified launch failure) in CudaFuncTable::copy, file D:\opencv\source\modules\dynamicuda\include\opencv2/dynamicuda/dynamicuda.hpp, line 882
OpenCV Error: Gpu API call (unspecified launch failure) in unknown function, ...matrix_operation.cu, line 143
OpenCV Error: Gpu API call (unspecified launch failure) in unknown function, ...surf.cu, line 140
OpenCV Error: Gpu API call (unspecified launch failure) in unknown function, ...surf.cu, line 691
OpenCV Error: Gpu API call (unspecified launch failure) in unknown function, ...surf.cu, line 112
OpenCV Error: Gpu API call (unspecified launch failure) in CudaFuncTable::mallocPitch, .... dynamicuda.hpp, line 1143

I use Stitcher class to create an MFC project to create panoramic images. opencv was build in order to use cuda,

After creating multiple threads in a while loop in the main program, Call the stitch function to simultaneously produce multiple panoramic images It was coded.

Threads generated code is as follows:

void MakeThread() { for(int n = 0; n < MAX_IMAGE; n++) { _beginthread( CreateStitchImg, 0, (void*)this); Sleep(100); } }

void CreateStitchImg(void* arg) { vector< Mat > vImg; Mat rImg; Stitcher stitching = Stitcher::createDefault(true);

vImg.push_back( imread("D:\test1.jpg"));
vImg.push_back( imread("D:\test2.jpg"));

stitching.stitch(vImg, rImg);

}

However, stitch while creating a panoramic image from a different thread The following errors occurred.

Do you know why?

--log OpenCV Error: Gpu API call (unspecified launch failure) in unkonwn function, file D:/opencv/sources/modules/nonfree/src/cuda/surf.cu, line 250

OpenCV Error: Gpu API call (unspecified launch failure) in CudaFuncTable::mallocPitch, file D:/opencv/sources/modules/dynamicuda/include/opencv2/dynamicuda/dynamicuda/hpp, line 1134

I use cuda.

cudaError_t error = cudaGetDeviceCount(&count);

count is 1

and getCudaEnabledDeviceCount() returns 0 and I do not understand why...

Is it linked to HAVE_CUDA? I have build OpenCV with CMake WITH_CUDA checked.

//cuda_info.cpp
int cv::cuda::getCudaEnabledDeviceCount()
{
#ifndef HAVE_CUDA
    return 0;
#else
    int count;
    cudaError_t error = cudaGetDeviceCount(&count);

    if (error == cudaErrorInsufficientDriver)
        return -1;

    if (error == cudaErrorNoDevice)
        return 0;

    cudaSafeCall( error );
    return count;
#endif
}

I'm use opencv 3.0 CMake 3.0.0 rc

BUILD_opencv_world checked. Why build error?

error log.

Processing WORLD modules... module opencv_hal... module opencv_cudev...

CMake Error at modules/cudev/CMakeLists.txt:21 (add_subdirectory): add_subdirectory given source "test" which is not an existing directory. Call Stack (most recent call first): modules/world/CMakeLists.txt:13 (include) modules/world/CMakeLists.txt:25 (include_one_module)

I'm build opencv 3.0 CMake 3.0.0rc WITH_CUDA

build ok. but, opencv_world300d.dll, lib is not there.

How to build opencv_world300d.dll , lib?

I've installed the cuda7. I used the opencv3.0 version CMake 3.0.0rc used to build up. After checking the build-up WITH_CUDA to invoke a function getCudaEnabledDeviceCount Return 0.

Is that returns zero?

int nCuda = getCudaEnabledDeviceCount()

nCuda == 0

why?

I'm used Stitcher class

it's very slowly

how got to real time stitching?

Stitcher stitcher = Stitcher::createDefault();
Stitcher::Status status = stitcher.stitch(vImg, rImg);

Stitcher stitcher = Stitcher::createDefault(true);

but,

int nCuda = getCudaEnabledDeviceCount() ;
return 0

why return 0?

I Use windows7 64bit, use following CMake options

BUILD_opencv_world checked. warning message

CMake Warning (dev) at cmake/OpenCVUtils.cmake:798 (get_target_property): Policy CMP0045 is not set: Error on non-existent target in get_target_property. Run "cmake --help-policy CMP0045" for policy details. Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target "opencv_calib3d". Call Stack (most recent call first): CMakeLists.txt:765 (ocv_get_all_libs) This warning is for project developers. Use -Wno-dev to suppress it.

CMake Warning (dev) at cmake/OpenCVUtils.cmake:798 (get_target_property): Policy CMP0045 is not set: Error on non-existent target in get_target_property. Run "cmake --help-policy CMP0045" for policy details. Use the cmake_policy command to set the policy and suppress this warning.

get_target_property() called with non-existent target "opencv_core". Call Stack (most recent call first): CMakeLists.txt:765 (ocv_get_all_libs) This warning is for project developers. Use -Wno-dev to suppress it. .... .... ....

It does not build properly.