Question

也许有人知道什么会导致这个问题。我有一个简单的代码，用于在一幅全景图像中拼接12幅图像，但却遇到了奇怪的行为。这是我的MacBook Pro上的拼接结果：

https://drive.google.com/open?id=1f_7i_rb8pnbHEBxlowzFa13MAHvxN07u

我桌面Mac上的拼接结果：

https://drive.google.com/open?id=19CoyPzz6QgDjqG1lUZbphGPYvCAg41hi

我使用的代码是相同，图像也一样。在我的桌面上，我可以毫无问题地构建和运行它，但在我的MacBook上它根本不起作用，它向我显示下一个错误：

OpenCV Error: Assertion failed (imgs.size() == imgs_.size())
in composePanorama, file /tmp/opencv-20171031-87373-6u1izq/opencv-3.3.1/modules/stitching/src/stitcher.cpp, line 168

libc++abi.dylib: terminating with uncaught exception of type cv::Exception: /tmp/opencv-20171031-87373-6u1izq/opencv-3.3.1/modules/stitching/src/stitcher.cpp:168:
error: (-215) imgs.size() == imgs_.size() in function composePanorama

这是我的代码：

#include <stdio.h>
#include <iostream>
#include <vector>

#include <opencv2/opencv.hpp>
#include <opencv2/imgcodecs.hpp>
#include <opencv2/stitching.hpp>


using namespace std;
using namespace cv;

int main(int argc, char** argv ) {

    vector<Mat> images_arr;

    const string images[] = {
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/1.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/2.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/3.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/4.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/5.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/6.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/7.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/8.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/9.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/10.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/11.jpeg",
        "/Users/george/CLionProjects/OpenCV_Stitch/test_stitch/12.jpeg",
    };


    const char* outFile =  "/Users/george/CLionProjects/OpenCV_Stitch/out.jpeg";

    for(auto path : images) {
        Mat image = imread(path, IMREAD_REDUCED_COLOR_2 | IMREAD_IGNORE_ORIENTATION);
        images_arr.push_back(image);
    }

    Mat pano;
    Stitcher stitcher = Stitcher::createDefault(false);
    stitcher.setRegistrationResol(0.8);
    stitcher.setSeamEstimationResol(0.1);
    stitcher.setCompositingResol(1);
    stitcher.setPanoConfidenceThresh(1);
    stitcher.setWaveCorrection(true);
    stitcher.setWaveCorrectKind(detail::WAVE_CORRECT_HORIZ);
    Stitcher::Status status1 = stitcher.estimateTransform(images_arr);
    Stitcher::Status status = stitcher.composePanorama(images_arr, pano);

    if (status != Stitcher::OK) {
        cout << "Can't stitch images, error code = " << int(status) << endl;
        return -1;
    }

    imwrite(outFile, pano);

    return 0;
}

我的CmakeLists.txt配置：

cmake_minimum_required(VERSION 3.8)
project(OpenCV_Stitch)

set(CMAKE_CXX_STANDARD 11)

find_package(OpenCV REQUIRED)

set(SOURCE_FILES main.cpp)
add_executable(OpenCV_Stitch ${SOURCE_FILES})
target_link_libraries(OpenCV_Stitch ${OpenCV_LIBS})

甚至无法想象什么会导致图像上出现黑点。有人碰到过这个吗？有时，当我使用不同的图像缝合opencv时返回错误：调整相机参数失败 我怎么能防止这种情况？也许用一些方法来估计相机旋转或类似的东西？

这里是我试图拼接的图像的链接：

https://drive.google.com/open?id=1-DfSf8eaC7bi37-ZhBpaRt8jHVvO_Qwb

谢谢！

Answer 1

我的代码收到相同的错误消息。当我修改下面的部分时，它运行没有错误。

Mat pano;
Ptr<Stitcher> stitcher = Stitcher::create(Stitcher::PANORAMA, false);
stitcher->setRegistrationResol(0.8);
stitcher->setSeamEstimationResol(0.1);
stitcher->setCompositingResol(1);
stitcher->setPanoConfidenceThresh(1);
stitcher->setWaveCorrection(true);
stitcher->setWaveCorrectKind(detail::WAVE_CORRECT_HORIZ);
Stitcher::Status status = stitcher->stitch(images_arr, pano);

图像全景拼接黑点

1 个答案: