Patent ID: 7639880
Filing Date: 2009-12-29
Classification: G06K,H04N

Abstract:
1. An image processing apparatus, comprising: means for inputting an original multivalue image to be processed; means for classifying a pixel attribute of the original multivalue image into a plurality of pixel attribute classes comprising a first pixel attribute class and a third pixel attribute class; means for generating a fourth layer image comprising a first type pixel having a pixel attribute corresponding to one of the first pixel attribute class and the third pixel attribute class; means for generating a first layer image comprising a plurality of first pixels, pixels of which having a pixel attribute belonging to the first pixel attribute class, the plurality of first pixels comprising a set of first defined pixels and a set of first undefined pixels; and means for generating a third layer image comprising a plurality of third pixels, pixels of which having a pixel attribute belonging to the third pixel attribute class, the plurality of third pixels comprising a set of third defined pixels and a set of third undefined pixels.