Group average filter algorithm for digital image processing

Details Group average filter algorithm for digital image processing Group average filter algorithm for digital image processing

2007-07-10

2007-07-10

Bella, Matthew C. (Department: 2624)

Image analysis

Image enhancement or restoration

Variable threshold, gain, or slice level

C382S176000, C382S172000, C382S266000, C235S462010

Reexamination Certificate

active

10832319

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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