see illustration of Color Removal as a local image enhancement of OmniPage Zone OCR). Image enhancements are designed to improve the appearance of documents and the accuracy of data extraction processes such as Optical Character Recognition (OCR). Which stage of processing image enhancements are used in can have a dramatic effect on the results. For example, image enhancements applied in Pre-Classification Processing will be applied to every page of every process. However, image enhancements applied in First Page Identification will be applied only for the processes used in First Page Identification, image enhancements used in Page Processing will only be applied to the selected pages, and Local Image Enhancements will be applied only within a particular process.
Consider whether you want the enhancements saved with the documents when they are stored in Laserfiche. Permanent image enhancements are applied to the images that are stored in Laserfiche. The image enhancements applied permanently are usually those that will make the images clearer and more readable for users. Enhancements often applied permanently include Deskew, Despeckle, and Page Removal. Local image enhancements are not applied to the images stored in Laserfiche. They are applied temporarily during the Quick Fields session to improve the accuracy of a specific process. Line Removal, Form Extraction, and Smooth are examples of image enhancements that are commonly used locally.
When more than one process is used, the location of the image enhancement in relation to the processes determines whether the image enhancement is applied to each process. If the image enhancement is listed before the process in the Session Configuration Pane, it will be applied before the process is run. If it is a local image enhancement, it will be listed indented under the process it is local to (see illustration of Color Removal as a local image enhancement of OmniPage Zone OCR).
