Setup Zoned Barcodes dialog box

To open the Setup Zoned Barcodes dialog box, click the Setup button on the General tab.

In the Setup Zoned Barcodes dialog box, you can load an image file, navigate through multiple page image file, draw zones around barcodes in images and set options for each zone. When you define zones, the OmniPage Barcode component ignores barcodes outside of the zones. This allows documents to be processed more efficiently. While you work in this dialog box, the status area at the right-top of the dialog box shows the number of zones applied to the image, the number of zones on the selected page.

Preview buttons

Buttons on the zone editor toolbar are used for previewing input images in the image pane.

Button	Description
	The zoom controls may be used for zooming the image in/out.
	Use these buttons to set up image alignment: fit to screen, fit to width, fit to height.
	Use this button to enter selection mode, in which you can select one or more zones.
	Use this button to enter creation mode, in which you can create new zones. The selected zones have to fulfil the following conditions: The whole zone area lies within the page's OCR image area. The whole zone area lies within the given image's area. The top coordinate of the zone has lower values than the bottom coordinate. The left coordinate of the zone has lower values than the right coordinate. The zone does not overlap another zone.
	Use this button to remove selected zones.

Preview Pane

The image pane displays the image for preview. Click and drag to draw zones around barcodes. You can include one or more barcodes in a scan. A zone should be at least slightly larger than barcode images that you want to include in it. You want to be careful to allow sufficient space for variation in positioning that can occur between images. To be detected by the OmniPage Barcode component during processing, barcodes should fit completely into a zone.

Image

The options in this group allow you to select an image and a page for displaying in the preview pane.

Zone

This group contains the options for a selected zone.

Pages tab

This tab contains options to specify on which pages in the input document that the component should search for the specified zone.

Validation tab

Use options on this tab to require validation of the values of the found barcodes. The barcodes whose values do not satisfy the validation criteria will be ignored.

Select the type of validation from the drop down list:

• No validation: This option is set by default. Barcode values are not validated.
• Contains something: This option allows validation to be stopped if there is no value returned from the zone.
• Matches wildcard: This option allows using wildcard characters to validate barcode values.

  Wildcard	Description
  *	Any value of any length.
  ?	Any single character.
  [A]	Any single alphabetic character.
  [#]	Any single numeric character.
  [A#], [#A]	Any letter or number.

  If you want such symbols as * ? [ ] \ to be recognized as characters (not as wildcard characters), use combinations with slash: \*, \?, \[, \], \\. For example, if a string [a*b]*c is desired to be found, use the following expression: \[a\*b\]\*c.
• Matches regular expression: This option requires barcode values to match a regular expression. It relies on the C++ <regex> library and utilizes the std::regex_match method to verify the entire string conforms to specific patterns. This validation represents the entirety of the content within the recognized zone. For example, the pattern ^Auskunft[\s\S]*, used to validate a string that should initiate with the word "Auskunft", captures all content until the end of the string, accommodating multiline text. ^: marks the start of the line. Auskunft: matches the literal term "Auskunft". [\s\S]*: includes any sequence of characters, including both whitespace (\s) and non-whitespace (\S) characters, occurring zero or more times. For matching regular expressions, the component uses the ECMAScript grammar. For more information about ECMAScript grammar, see Regular Expressions in the MSDN Library or the official website.
• Contains regular expression: Use this option when the goal is to find a substring defined by the specific regular expression, rather than matching the entire string. For instance, consider the pattern ^Auskunft, to validate strings that start with the word "Auskunft". ^: Marks the start of the line. Auskunft: Matches the literal term "Auskunft". "Matches regular expression" focuses on matching the entire zone value to the pattern, whereas "Contains regular expression" searches for the pattern anywhere in the zone value. The decision between them depends whether you seek conformity of the entire zone value to the pattern or if you simply need to identify a substring within the zone value that matches the pattern.
• Contains substring: This option requires barcode values to contain the string specified in the Substring field below.

Location tab

On this tab you can modify the selected zone coordinates and preferable measure unit.

Test tab

On this tab you can test the selected zone for barcode recognition. Barcode search is performed based on the barcode types selected in the Types field of the General tab.