Processor::ContoursQuery Namespace Reference

The ContoursQuery namespace provides enumeration and mapping utilities for contour detection methods. More...

Enumerations
enum class	Method { CHAIN_APPROX_NONE , CHAIN_APPROX_SIMPLE , CHAIN_APPROX_TC89_L1 , CHAIN_APPROX_TC89_KCOS }
	Enumeration of different contour approximation methods. More...

Variables
const std::map< std::string, Method >	mappings
	String-to-enum mapping for contour approximation methods.

Detailed Description

The ContoursQuery namespace provides enumeration and mapping utilities for contour detection methods.

Enumeration Type Documentation

Method

enum class Processor::ContoursQuery::Method

strong

Enumeration of different contour approximation methods.

These correspond to OpenCV's chain approximation flags used in contour detection.

Enumerator
CHAIN_APPROX_NONE	All points are stored.
CHAIN_APPROX_SIMPLE	Compresses horizontal, vertical, and diagonal segments.
CHAIN_APPROX_TC89_L1	Teh-Chin approximation algorithm (L1).
CHAIN_APPROX_TC89_KCOS	Teh-Chin approximation algorithm (K-cosine).

Variable Documentation

mappings

const std::map<std::string, Method> Processor::ContoursQuery::mappings

Initial value:

= {
        { "ALL_POINT(CHAIN_APPROX_NONE)", Method::CHAIN_APPROX_NONE },
        { "LINE(CHAIN_APPROX_SIMPLE)", Method::CHAIN_APPROX_SIMPLE },
        { "L1(CHAIN_APPROX_TC89_L1)", Method::CHAIN_APPROX_TC89_L1 },
        { "KCOS(CHAIN_APPROX_TC89_KCOS)", Method::CHAIN_APPROX_TC89_KCOS }
    }

String-to-enum mapping for contour approximation methods.