Chapter 1
Introduction to IMAQ Vision
IMAQ Vision for LabWindows/CVI User Manual
1-2
ni.com
IMAQ Vision Function Tree
The IMAQ Vision function tree (
NIVision.lfp
) contains separate
classes corresponding to groups or types of functions. Table 1-1 lists the
IMAQ Vision function types and gives a description of each type.
Table 1-1.
IMAQ Vision Function Types
Function Type
Description
Image
Management
Functions that create space in memory for images and perform basic image
manipulation.
Memory
Management
Function that returns, to the operating system, previously used memory that is
no longer needed.
Error
Management
Functions that set the current error, return the name of the function in which the
last error occurred, return the error code of the last error, and clear any pending
errors.
Acquisition
Functions that acquire images through an IMAQ hardware device.
Display
Functions that cover all aspects of image visualization and image window
management.
Overlay
Functions that create and manipulate overlays.
Regions of
Interest
Functions that create and manipulate regions of interest.
File I/O
Functions that read and write images from and to files.
Calibration
Functions that learn calibration information and correct distorted images.
Image
Analysis
Functions that compute the centroid of an image, profile of a line of pixels,
and the mean line profile. This type also includes functions that calculate the
pixel distribution and statistical parameters of an image.
Grayscale
Processing
Functions for grayscale image processing and analysis.
Binary
Processing
Functions for binary image processing and analysis.
Color
Processing
Functions for color image processing and analysis.
Pattern
Matching
Functions that learn patterns and search for patterns in images.
