Misalignment of pages usually the result of poor page feeding in a fax machine or scanner. A document scanner that copies single-sided documents. The small dots and miscellaneous marks that show up on image pages that were not on the original. Most often the result of telephone line noise that occurs during a fax transmission. Properly constructed, thumbnails graphically represent the content and layout of the image represented.
Good thumbnails help the user find a specific page in a document for viewing.
TIFF is compatible with all image densities. It is the standard for low-end scanners and comes in 16 and 32 bit versions. If the quality of the resulting OCR is poor, particularly the document reconstruction, the user may wish to perform manual zoning. This helps improve OCR quality and accuracy as well as the quality of document reconstruction. The process of magnifying of the display of an image in a window to more closely inspect areas of a drawing.