.. meta::
	:keywords: CV2 ORB DETECTANDCOMPUTE

.. role:: raw-html(raw)
	:format: html

cv2_orb_detect
=============================

키포인트를 감지하고 설명자를 계산한다.

입력 슬롯
---------

* **image**

출력 슬롯
---------

* **keypoints**

* **descriptors**

속성 목록
---------

* **nfeatures**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 500           |
+-----------------+-------+----------+---------------+

유지할 최대 기능 수.

* **scaleFactor**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + float + True     + 1.2           |
+-----------------+-------+----------+---------------+

1보다 큰 피라미드 데시메이션 비율.

* **nlevels**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 8             |
+-----------------+-------+----------+---------------+

피라미드 레벨 값.

* **edgeThreshold**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 31            |
+-----------------+-------+----------+---------------+

기능이 감지되지 않는 경계의 크기.

* **firstLevel**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 0             |
+-----------------+-------+----------+---------------+

소스 이미지를 넣을 피라미드의 레벨.

* **WTA_K**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 2             |
+-----------------+-------+----------+---------------+

Oriented BRIEF 디스크립터의 각 요소를 생성하는 포인트 수.

* **scoreType**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + str   + True     + HARRIS        |
+-----------------+-------+----------+---------------+

순위를 매기는 방법.

* **patchSize**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 31            |
+-----------------+-------+----------+---------------+

Oriented BRIEF 설명자가 사용하는 패치의 크기.

* **fastThreshold**

+-----------------+-------+----------+---------------+
| Rule            + Type  + Required + Default value |
+=================+=======+==========+===============+
| initialize_only + int   + True     + 20            |
+-----------------+-------+----------+---------------+

빠른 임계 값.