SurfDescriptorExtractor/featureDetector - iOS 中的 OpenCv

发布于 2024-12-16 00:24:45 字数 872 浏览 2 评论 0原文

我正在开发一个 iphone 项目，该项目使用 openCV 进行一些图像匹配。最初我使用 cvMatchTemplate()，但输出不是我们期望的。所以我现在正在尝试使用 FLANN 实现 SURF 检测器。

我尝试将以下 .cpp 代码移植到 Objective C，

//-- Step 2: Calculate descriptors (feature vectors)
  SurfDescriptorExtractor extractor;

  Mat descriptors_1, descriptors_2;

  extractor.compute( img_1, keypoints_1, descriptors_1 );
  extractor.compute( img_2, keypoints_2, descriptors_2 );

  //-- Step 3: Matching descriptor vectors using FLANN matcher
  FlannBasedMatcher matcher;
  std::vector< DMatch > matches;
  matcher.match( descriptors_1, descriptors_2, matches );

但无法编译它，即使我包含了所有必需的库和头文件。自动完成也没有为

#include "opencv2/features2d/features2d.hpp"

“探测器在头文件中定义为

class CV_EXPORTS FeatureDetector
{
...
}

我在这里做错了什么？” 中存在的任何探测器提供选项。有关如何调用检测器类（抽象基类）中的方法的任何输入？

原文

i am working on an iphone project which uses openCV for some image matching. Initially I was using cvMatchTemplate(), but the output is not what we expected. so I am now trying to implement SURF detector using FLANN.

I tried to port the following .cpp code to objective C,

//-- Step 2: Calculate descriptors (feature vectors)
  SurfDescriptorExtractor extractor;

  Mat descriptors_1, descriptors_2;

  extractor.compute( img_1, keypoints_1, descriptors_1 );
  extractor.compute( img_2, keypoints_2, descriptors_2 );

  //-- Step 3: Matching descriptor vectors using FLANN matcher
  FlannBasedMatcher matcher;
  std::vector< DMatch > matches;
  matcher.match( descriptors_1, descriptors_2, matches );

But couldn't get it compiled, even though I have all the required libraries and header files included. The auto-complete is also not giving options for the any detectors present in

#include "opencv2/features2d/features2d.hpp"

The detector is defined in the header file as

class CV_EXPORTS FeatureDetector
{
...
}

What am I doing wrong here? Any input on how to call methods in the detector class(Abstract base class)?

分享到QQ

分享到微博

如果你对这篇内容有疑问，欢迎到本站社区发帖提问参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。

发布评论

需要登录才能够评论，你可以免费注册一个本站的账号。

陌上青苔 2024-12-23 00:24:45

我没有在 iPhone 上专门使用过 openCV，所以无法提供帮助，但是当我使用特征检测器/描述符/匹配器时，我使用了以下语法（最终可能与您编写的相同） ...):

cv::Ptr<cv::DescriptorExtractor> extractor;
extractor = cv::DescriptorExtractor::create("SURF");

cv::Ptr<cv::DescriptorMatcher> matcher;
matcher = cv::DescriptorMatcher::create("FlannBased");

这种风格适合你吗？

I've not used openCV on the iphone specifically so can't help there, but when I've used feature detector/descriptor/matcher I've used the following syntax (which may end up being the same as what you've written...):

cv::Ptr<cv::DescriptorExtractor> extractor;
extractor = cv::DescriptorExtractor::create("SURF");

cv::Ptr<cv::DescriptorMatcher> matcher;
matcher = cv::DescriptorMatcher::create("FlannBased");

Does that style work for you?

回复收藏 0 原文

~没有更多了~