Type Alias ImgProc_ContMethod

source

pub type ImgProc_ContMethod = ContourApproximationModes;

Aliased Type§

enum ImgProc_ContMethod {
    CHAIN_APPROX_NONE = 1,
    CHAIN_APPROX_SIMPLE = 2,
    CHAIN_APPROX_TC89_L1 = 3,
    CHAIN_APPROX_TC89_KCOS = 4,
}

Variants§

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CHAIN_APPROX_NONE = 1

stores absolutely all the contour points. That is, any 2 subsequent points (x1,y1) and (x2,y2) of the contour will be either horizontal, vertical or diagonal neighbors, that is, max(abs(x1-x2),abs(y2-y1))==1.

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CHAIN_APPROX_SIMPLE = 2

compresses horizontal, vertical, and diagonal segments and leaves only their end points. For example, an up-right rectangular contour is encoded with 4 points.

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CHAIN_APPROX_TC89_L1 = 3

applies one of the flavors of the Teh-Chin chain approximation algorithm TehChin89

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CHAIN_APPROX_TC89_KCOS = 4