Image processing apparatus, image processing method, and a program, for removing low-frequency noise from image data
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United States of America Patent
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Sep 20, 2011
Grant Date -
Dec 11, 2003
app pub date -
May 29, 2003
filing date -
Jun 5, 2002
priority date (Note) -
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Abstract
This invention provides an image processing apparatus, image processing method, and computer program, which can visually remove low-frequency noise contained in image data. Image data containing low-frequency noise is input from an input terminal (201). A window unit (202) designates a window made up of a pixel of interest, and its surrounding pixels. A pixel selector (204) selects a selected pixel to be compared with the pixel of interest from the window, and a pixel value determination unit (206) determines a new pixel value of the pixel of interest on the basis of the pixel values of the selected pixel and pixel of interest. New image data is generated by substituting the pixel value of the pixel of interest by the new pixel value.
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