System and method for dynamic zoom to view documents on small displays

摘要

A system and method for dynamic zoom adjustment based, in part, upon: the raster data in the user selected local area is disclosed; and/or the knowledge of a prevailing font size in a user selected region such that the text in that region is enlarged to be just readable. To achieve this, the detail in the local area is examined and a zoom factor is calculated that depends on the image detail and/or the viewing screen resolution. A document server may be employed to develop the information needed to enable this functionality. In one embodiment, the information is developed by RIPping the document, and then storing a spatial map of localized details (e.g., font sizes at several display resolutions) to automatically adjust a zoom level or factor and thereby facilitate navigation and reading.

主权项

1. A method for providing a source document image for display, comprising:
identifying a plurality of sections of the source document image, and at least one characteristic of each of the sections; associating a display zoom factor with each of the identified sections based upon the at least one characteristic of each section; creating an adjusted zoom image of at least a selected section for display in response to the display zoom factor for the selected section; sending the adjusted zoom image of the selected image section for display; and displaying the adjusted zoom image.