Method and apparatus for selectively linearizing cells in an engraver
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United States of America Patent
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May 21, 1996
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N/A
app pub date -
Apr 6, 1994
filing date -
Apr 6, 1994
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Abstract
This invention relates to a method and apparatus for linearizing engraving cells to be engraved in order to adjust for visual discontinuities. An engraver for engraving a cylinder comprises a controller having data stored therein. The data generally corresponds to at least one line of cells to be engraved on the cylinder. The engraver also comprises an engraving head coupled to the controller and operatively mounted in the engraver. The engraver further comprises means located in the controller for using filter criteria to selectively filter and linearize the data so that the controller can subsequently energize the engraving head to engrave the at least one line of cells so that it appears continuous. A method for engraving the cells comprises the steps of examining present pixel data associated with a line of cells to be engraved; determining whether the present pixel data should be linearized; and selectively linearizing the present pixel data if it is determined that the present pixel data should be linearized.
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