Interpolation method for binary image

Details Interpolation method for binary image Interpolation method for binary image

1998-05-29

2000-01-25

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382270, 382272, 382299, G06K 932

Patent

active

060186011

ABSTRACT:
An interpolation method in which a threshold value used for determining a pixel value of a pixel generated by interpolation according to a context (state value of adjacent pixels). In the interpolation method, the ambiguity between the interpolation value and the threshold value is removed by using the context (state value of the reference pixels around the interpolated pixel), thereby reducing the blocking and smoothing phenomena in the restored binary image.

REFERENCES:
patent: 4771471 (1988-09-01), Kitamura
patent: 5121447 (1992-06-01), Tanioka et al.
patent: 5703965 (1997-12-01), Fu et al.
patent: 5754710 (1998-05-01), Sekine et al.
patent: 5818964 (1998-10-01), Itoh
patent: 5875268 (1999-02-01), Miyake
patent: 5911007 (1999-06-01), Miyake

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