Image processing with low-resolution to high-resolution conversi

Details Image processing with low-resolution to high-resolution conversi Image processing with low-resolution to high-resolution conversi

1997-01-31

1999-02-23

Johns, Andrew W.

Image analysis

Image transformation or preprocessing

382269, 382299, 382300, G06K 936, G06K 932

Patent

active

058752684

ABSTRACT:
An image processing apparatus for converting low-resolution information to high-resolution information and increasing the number of pixels of input image information by a factor of (N.times.M) includes interpolating unit for interpolating one pixel of low-resolution information to (N.times.M) pixels, quantizing unit for quantizing, to n values (n.gtoreq.2), image information within a block of (N.times.M) pixels after interpolation by the interpolating unit corresponding to a low-resolution pixel of interest, and arithmetic unit for summing and combining, at a set allocation ratio, information quantized by the quantizing unit and interpolated information from the interpolating unit, thereby making it possible to convert a low-resolution image to a high-resolution image and to obtain a high picture quality.

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