IMAGE NOISE REDUCTION APPARATUS AND METHOD, RECORDED MEDIUM RECORDED THE PROGRAM PERFORMING IT
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United States of America Patent
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Issued Date -
Jul 30, 2009
app pub date -
Aug 10, 2007
filing date -
Aug 11, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An apparatus and a method of reducing a noise component existed in a surrounding part of an image photographed in an image sensor. According to an aspect of the present invention, an apparatus differentially reducing a noise of an image according to an area of the image includes a filter area selecting unit, selecting a filter area including a plurality of adjacent pixels based on an object pixel; and a noise reducing unit, computing pixel data of the object by using pixel data of the plurality of adjacent pixels in the filter area, whereas the filter area selecting unit determines the size of the filter area according to the distance between the object pixel and a center pixel of the image. The present invention can prevent a noise component of a surrounding part from being amplified by using a different low pass filter in a center part and a surrounding part of an image and can acquire the resolution and quality of the desired image.
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