Group average filter algorithm for digital image processing
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United States of America Patent
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Jul 17, 2007
Grant Date -
Aug 31, 2006
app pub date -
Apr 24, 2006
filing date -
Aug 11, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This present invention discloses a system and method for enhancing images of barcodes and other similar objects taken by the digital camera connected to or embedded in a mobile device. This filter works by converting the image into its equivalent gray scale. The algorithm then computes the mean pixel intensity value of a row of pixels in the image. The row is divided into sections and the mean pixel intensity of each section is also calculated. The pixels in each section are processed according to the relation of the relative mean intensities of the row and the section. Once each pixel has been processed, the image is reassembled from its divided sections.
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