National Instruments IMAQ Vision for LabWindows TM /CVI User Manual

Page 50

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Chapter 4

Performing Particle Analysis

IMAQ Vision for LabWindows/CVI User Manual

4-8

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IMAQ_MT_MAX_FERET_DIAMETER_START_Y

Y-coordinate of the start of the
line segment connecting the two
perimeter points that are the furthest
apart

IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_LEFT

X-coordinate of the leftmost pixel in
the longest row of contiguous pixels
in the particle

IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_RIGHT

X-coordinate of the rightmost pixel
in the longest row of contiguous
pixels in the particle

IMAQ_MT_MAX_HORIZ_SEGMENT_LENGTH_ROW

Y-coordinate of all of the pixels in the
longest row of contiguous pixels in
the particle

IMAQ_MT_MOMENT_OF_INERTIA_XX

Moment of inertia in the x direction
twice

IMAQ_MT_MOMENT_OF_INERTIA_XY

Moment of inertia in the x and y
directions

IMAQ_MT_MOMENT_OF_INERTIA_YY

Moment of inertia in the y direction
twice

IMAQ_MT_MOMENT_OF_INERTIA_XXX

Moment of inertia in the x direction
three times

IMAQ_MT_MOMENT_OF_INERTIA_XXY

Moment of inertia in the x direction
twice and the y direction once

IMAQ_MT_MOMENT_OF_INERTIA_XYY

Moment of inertia in the x direction
once and the y direction twice

IMAQ_MT_MOMENT_OF_INERTIA_YYY

Moment of inertia in the y direction
three times

IMAQ_MT_NORM_MOMENT_OF_INERTIA_XX

Normalized moment of inertia in the
x direction twice

IMAQ_MT_NORM_MOMENT_OF_INERTIA_XY

Normalized moment of inertia in the
x and y directions

IMAQ_MT_NORM_MOMENT_OF_INERTIA_YY

Normalized moment of inertia in the
y direction twice

Table 4-1. Particle Measurements (Continued)

Measurement

Description

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