OpenCV Stitching

Question

I desperately need help with the opencv stitching module. I need to create a panoramic photography using the "stitch" method in opencv. Below is what I have so far.. but when I run the program I get this error: Need more images. Is there an OpenCV expert who can help me with this error?

IplImage* img1 = cvLoadImage("/Users/myName/Desktop/image1.jpg", CV_LOAD_IMAGE_COLOR);
IplImage* img2 = cvLoadImage("/Users/myName/Desktop/image2.jpg", CV_LOAD_IMAGE_COLOR);

Mat vecImg1 = img1;
Mat vecImg2 = img2;

Mat allImages;

allImages.push_back(vecImg1);
allImages.push_back(vecImg2);

Mat outputImage;
Stitcher stitchImg = Stitcher::createDefault();
Stitcher::Status s = stitchImg.stitch(allImages, outputImage);
cout << "status: " << s << endl;

cvNamedWindow("stitch images", CV_WINDOW_AUTOSIZE);
cvShowImage("stitch images", &outputImage);
cvWaitKey(0);
cvDestroyWindow("stitch images");

I'm not an OpenCV expert, but did you try adding more images to your `allImages`? — tamasgal, Nov 03 '12 at 08:28
Two images should be sufficient. Is there enough overlap between them? — num3ric, Nov 03 '12 at 08:40
Yes, there is a sufficient overlap between two since they were sample images to perform stitching.. :( — hsyforw, Nov 03 '12 at 13:28
Why don't you start with the sample code provided by OpenCV? — Sam, Nov 04 '12 at 06:48

score 4 · Answer 1 · answered Nov 03 '12 at 08:48

4

I guess "allImages" should be of type vector<Mat>.

Check out OpenCV sample "samples/cpp/stitching.cpp".

answered Nov 03 '12 at 08:48

luhb

656
5
4

If I change allImages to vector then, I get an error saying "cv::_InputArray::_InputArray(std::__1::vector > const&)" – hsyforw Nov 03 '12 at 13:31
It's saying, Undefined symbols for architecture x86_64 – hsyforw Nov 03 '12 at 13:31
I referred to stitching.cpp but I keep getting errors.. :( . – hsyforw Nov 03 '12 at 13:33

score 1 · Answer 2 · answered Nov 04 '12 at 08:54

1

I actually found a way around.

In Xcode, under the Build Settings, I changed the Compiler type from Apple LLVM to LLVM GCC 4.2 and now my code generates panorama image just fine!

Thanks!

answered Nov 04 '12 at 08:54

hsyforw

26
1
2

score 0 · Answer 3 · answered Sep 07 '16 at 10:08

0

In the stitcher class function, opencv find feature matches between images. If the image you have entered have no or very less features in common, it will not treat these images as image of same view Hence more images required

answered Sep 07 '16 at 10:08

Garvita Tiwari

584
2
12

OpenCV Stitching

3 Answers3