Invention Grant
US08947740B1 Method and apparatus for adjusting light intensity based on content to achieve a uniform exposure
有权
用于基于内容调节光强度以实现均匀曝光的方法和装置
- Patent Title: Method and apparatus for adjusting light intensity based on content to achieve a uniform exposure
- Patent Title (中): 用于基于内容调节光强度以实现均匀曝光的方法和装置
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Application No.: US14181989Application Date: 2014-02-17
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Publication No.: US08947740B1Publication Date: 2015-02-03
- Inventor: Michael J. Wilsher , Sebastián R. de Echaniz
- Applicant: Xerox Corporation
- Applicant Address: US CT Norwalk
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Norwalk
- Main IPC: H04N1/407
- IPC: H04N1/407 ; H04N1/29 ; H04N1/036 ; G06K15/14 ; B41J2/45 ; H04N1/40 ; H04N1/028

Abstract:
A method, non-transitory computer readable medium, and apparatus for adjusting a light intensity of a printhead are disclosed. For example, the method receives an image comprising a plurality of pixels, calculates a correction factor for each one of a plurality of pixels of the image by applying a filter to each one of the plurality of pixels of the image and summing a contribution of the light intensity of each one of a plurality of surrounding pixels to a pixel being analyzed to calculate an overlap value and comparing the overlap value to a development threshold range and adjusts the light intensity of a light source of the printhead in accordance with the correction factor of each one of the plurality of pixels of the image that require toner.
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