Dalsa BOA Manuel d'utilisateur télécharger pdf (Page 69)

iNspect Express User’s Manual405-00026-00

61Rev 1600; 12 July 2010

• Fielding – limit positions in the string to be specific character types. This can speed up the

OCR Tool by reducing the number of characters compared to the found characters.

character defined (allowed) characters

? any alphanumeric character

# numeric characters only

a lower case letters only

A upper case letters only

$ letters only, both upper and lower case

e. Click the “A” button to open the Font Editor.

f. Click the “Preprocess” button

to add image filtering, or feature enhancement. Adding

preprocessing may increase inspection time. Please refer to page 15.

g. Click the “check” button

to accept changes and close the OCR Properties box. Click the

X button

to close without changes.

Using the Font Editor

The Font Editor allows you to import fonts or individual characters, train new charac-

ters, and save trained fonts or characters.

a. The Font editor opens to the “Edit” tab (bottom half of the window). Clear the “All charac-

ters same size” if your characters are different sizes or widths.

b. Click on the “Add” tab in the Font Editor. Your OCR rectangle (Region) is displayed in this

new window. Use the zoom in and zoom out buttons to change the size of the Region. Use

the rotate button if your characters are at a different orientation (direction).

NOTE For this example, the Rotate parameter was set to “90” in the OCR Properties

box, to make the text appear horizontal in the Font Editor.

c. Click above the top left of the first character, move your mouse to resize the “rubber band”

box, and click below the bottom right of the first character. A “Label” window opens. Type a

label or name for this character; usually the character itself is the label (for this example, D).

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Dalsa BOA Manuel d'utilisateur Page 69