小编Ste*_*nis的帖子

我正在尝试从这里采用代码:

https://github.com/foundry/OpenCVStitch

进入我的计划.但是,我碰壁了.此代码将已存在的图像拼接在一起.我正在尝试制作的程序会将用户拍摄的图像拼接在一起.我得到的错误是,当我将图像传递给针脚功能时,它说它们的大小无效(0 x 0).

这是拼接功能:

- (IBAction)stitchImages:(UIButton *)sender {
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{


        NSArray* imageArray = [NSArray arrayWithObjects:
                               chosenImage, chosenImage2, nil];
        UIImage* stitchedImage = [CVWrapper processWithArray:imageArray]; // error occurring within processWithArray function
        dispatch_async(dispatch_get_main_queue(), ^{

            NSLog (@"stitchedImage %@",stitchedImage);
            UIImageView *imageView = [[UIImageView alloc] initWithImage:stitchedImage];
            self.imageView = imageView;
            [self.scrollView addSubview:imageView];
            self.scrollView.backgroundColor = [UIColor blackColor];
            self.scrollView.contentSize = self.imageView.bounds.size;
            self.scrollView.maximumZoomScale = 4.0;
            self.scrollView.minimumZoomScale = 0.5;
            self.scrollView.contentOffset = CGPointMake(-(self.scrollView.bounds.size.width-self.imageView.bounds.size.width)/2, -(self.scrollView.bounds.size.height-self.imageView.bounds.size.height)/2);
            [self.spinner stopAnimating];

        });


    });

}

chosenImage和chosenImage2是用户使用这两个函数拍摄的图像:

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    savedImage = info[UIImagePickerControllerOriginalImage]; …