User`s manual

Table Of Contents
G-7
Glossary
G
Ë Mask window
The image being examined may contain an area that does not need to be processed. To eliminate such
an area, a mask window is used.
Ë Island
An "island" is a separate area which is created after labeling (object identification) process of the binary
image.
[M]
Ë Main axis angle
The acute angle between the longitudinal and horizontal axes of a shape in the image after the measure-
ment object is converted to binary. This angle cannot be measured for nearly circular or square-shaped
objects.
ËË
ËË
Ë Mid gray level emphasis
Emphasize the mid gray level. This improves contrast while remaining the background image.
255
255
LLevel
WWidth
LW
Input image gray level
Output image gray level
[I]
Ë
Illumination monitor alarm density setting
The "illumination (light level) monitor" is a function which automatically monitors the environmental light-
ing conditions when measuring objects.
If the illuminance exceeds the alarm density setting, the IV-S30 will display an alarm message.
Ë Interline transfer system
The interline transfer system is a system for transferring electrical charges from the CCD receiving ele-
ments to the read-out matrix.
The frame transfer system is a system for transferring electrical charge which uses the photo sensitive
area to read out the charges. This system is subject to smearing noise since the area is used for both
receiving and transferring the image.
+30˚
-30˚
Object to be measured
Measurement window
Mask window