Patent ID: 8478063
Filing Date: 2013-07-02
Classification: G06T,H04N

Abstract:
1. An image processing apparatus for generating a smoothed image obtained by blurring an input image, the image processing apparatus comprising: a first smoothed image generating unit that sets pixels of the input image as process target pixels by using a plurality of low pass filters each having a plurality of different level value ranges, computes average values of the pixels included in the level value ranges from the pixels of the input image including process target pixels included within the filter sizes of the plurality of low pass filters, and generates a plurality of level-value-limited smoothed images limited by the plurality of level values; a second smoothed image generating unit that sets the pixels of the input image as process target pixels by using a plurality of low pass filters each having a plurality of level value ranges or filter sizes different from those of the first smoothed image generating unit, computes average values of the pixels included in the level value ranges from the pixels of the input image including process target pixels included within the filter sizes of the plurality of low pass filters, and generates a plurality of level-value-limited smoothed images limited by the plurality of level values; a selecting unit that selects one or more of the level-value-limited smoothed images generated by the first smoothed image generating unit or the second smoothed image generating unit on the basis of the process target pixels and level values different from the level values utilized by the first and second smoothed image generating units; and a synthesis processing unit that generates a smoothed image that uses values computed from level values of one or more of the pixels located at a position of the process target pixel or positions near the process target pixel in the one or more of the level-value-limited smoothed images selected by the selecting unit as the level values of the process target pixels.