EdgePitch

Measures edge pitch

int EdgePitch(
        const float             *profile,
        const int               num,
        const int               type,
        const double    density,
        const int               edgeLevelIn,
        const int               edgeLevelOut,
        const int               noiseLevel,
        const int               noiseWidth,
        const int               maxPosNum,
        int                     *edgeNum,
        double          *edgePos
)

Parameters

*profile	Edge profile data
num	Number of profile data
type	Profile type
density	Edge profile density
edgeLevelIn	Edge level IN (0 to 100: default is 50)
edgeLevelOut	Edge level OUT (0 to 100: default is 50)
noiseLevel	Noise level (0 to D_MAX: default is 0)
noiseWidth	Noise width (0 to 511: default is 0)
maxPosNum	Maximum stored number of edge position data
*edgeNum	Edge pitch (measurement result)
*edgePos	Edge detection position data (measurement result) edgePos[N][0] the Nth detection position (IN) edgePos[N][1] the Nth detection position (OUT)

Return Value

NORMAL(0): Successful completion

ERROR(-1): Unsuccessful completion

Description

Performs the edge pitch measurement of a straight line region. Edge pitch is the measurement of the number of edges in a color based on the color specified using a RGB value.

For edgePos, you need to allocate the space for storing the edge position data in advance. You need to specify the number of allocated data in maxPosNum. The library stores data items up to this max number. If you specify 0 in maxPosNum, the library does not store any data.

The edge detection mode is only enabled for the monochrome images.

For the profile type and density, you need to use the value obtained by "

EdgePitchProfile Creates an edge pitch profile".

There are two edge levels, "IN" and "OUT": "IN" indicates the level entering into the target color, and "OUT" indicates the level leaving from the target color.

In a profile, "IN" is displayed as an upward peak, and "OUT" is displayed as an downward peak.

The upper limit of the range (D_MAX) of the noise level is within one of the following ranges depending on the image type.

Color image: 0 to 442

Monochrome image: 0 to 255

Notes