Rockwell Automation 5370-OCR2 PAK - Manual (Page 54)

Chapter 5
Creating and Editing Fonts
5–19
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Vertical Character Spacing should be set to the vertical distance from the
center of one line of characters to the center of the next line.
Characters below this line will
be considered part of the next string.
The vertical character spacing is used to separate the characters into
multiple lines, as follows:
1. When the system detects two characters and the vertical distance
between them is less than 1/2 the vertical character spacing, the system
treats them as belonging to the same string of characters.
2. When the system detects two characters and the vertical distance
between them is greater than 1/2 the vertical character spacing, the system
treats them as belonging to different strings of characters.
Gray Spaces
When Gray Spaces are enabled, the Space Dimensions are used as follows:
When the system detects a space between characters, it measures the
percentage of white pixels within a box located in the region of the space. If
this percentage is more than the Gray Space percentage, the system treats it
as a true ”white” space. Otherwise, it treats it as an unrecognized character,
or ”gray” space. In this case the gray space character “_” will be inserted
into the string of read characters.