imaqROIProfile

NI Vision for LabWindows/CVI Function

imaqROIProfile

Usage

ROIProfile* imaqROIProfile(const Image* image, const ROI* roi);

Purpose

Calculates the profile of the pixels along the edge of each contour in a region of interest (ROI).

Image Types Supported

IMAQ_IMAGE_U8, IMAQ_IMAGE_I16, IMAQ_IMAGE_SGL

Parameters

Name

Type

Description

image const Image* The image from which the function gets the profile.
roi const ROI* The ROI describing the pixels about which the function gets information.

Return Value

Type

Description

ROIProfile* On success, this function returns a pointer to information about the points along the edge of each contour in the ROI. On failure, this function returns NULL. To get extended error information, call imaqGetLastError(). When you are finished with the return value, dispose of it by calling imaqDispose().