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我有这 3 个 defcfuns，用于包装在 C 中的 OpenCV 函数（C++）（包括 C 和 C++ 函数定义），前 2 个，%brisk并且surf0都可以用作(self feature-detector)底部的参数，%feat-detect-detect. 如果前两个的输出和self参数feat-detect-detect只是：指针，但是我需要将它们的所有三种类型都定义为与页面底部的类型类似，这样我才能使用终结器。这三个的所有终结器和类型都是相同的，只需在页面底部的四个函数中替换 inbrisk和surffor feature-detector，您就会知道每个函数的样子。我应该只调用输出类型brisk和surf输入类型吗？feat-detect-detect使用相同的名称，并使它们都在页面底部使用相同的 4 个函数类型/终结器组合，或者有更好的方法。

    ;; BRISK::BRISK(int thresh=30, int octaves=3, float patternScale=1.0f)
    ;; BRISK* cv_create_BRISK(int thresh, int octaves, float patternScale)
    (defcfun ("cv_create_BRISK" %brisk) brisk
      (thresh :int)
      (octaves :int)
      (pattern-scale :float))

    ;; SURF::SURF()
    ;; SURF* cv_create_SURF() 
    (defcfun ("cv_create_SURF" surf0) surf)

    ;; void FeatureDetector::detect(const Mat& image, vector<KeyPoint>& keypoints, const Mat& mask=Mat() ) const
    ;; void cv_FeatureDetector_detect3(FeatureDetector* self, Mat* image, vector_KeyPoint* keypoints, Mat* mask)
    (defcfun ("cv_FeatureDetector_detect3" %feat-detector-detect) :void
      (self feature-detector)
      (image mat)
      (keypoints (:pointer vector-keypoint))
      (mask mat))




    (define-foreign-type feature-detector ()
      ((garbage-collect  :reader garbage-collect :initform nil :initarg 
                         :garbage-collect))
      (:actual-type :pointer)
      (:simple-parser feature-detector))


    (defclass cv-feature-detector ()
      ((c-pointer :reader c-pointer :initarg :c-pointer)))


    (defmethod translate-to-foreign ((lisp-value cv-feature-detector) (c-type feature-detector))
      (c-pointer lisp-value))


    (defmethod translate-from-foreign (c-pointer (c-type feature-detector))
      (let ((feature-detector (make-instance 'cv-feature-detector :c-pointer c-pointer)))
        (when (garbage-collect c-type)
          (tg:finalize feature-detector (lambda () (del-feature-detector c-pointer))))
        feature-detector))
    ound matches of keypoints from two images."
       (%draw-matches img1 keypoints1 img2 keypoints2 matches1to2 outimg match-color single-point-color matches-mask flags))
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