Interpolation method for binary image

Details Interpolation method for binary image Interpolation method for binary image

1997-11-26

1999-12-14

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382270, 382272, 382298, 382299, 358428, 358525, 348458, 348625, G06K 932

Patent

active

060028122

ABSTRACT:
An improved interpolation method in which a threshold value used for determining a pixel value of a pixel generated by interpolation according to a context which is a 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, thereby reducing the blocking and smoothing phenomena in the restored binary image.

REFERENCES:
patent: 4771471 (1988-09-01), Kitamura
patent: 5054100 (1991-10-01), Tai
patent: 5754706 (1998-05-01), Schweid et al.
patent: 5799113 (1998-08-01), Lee
patent: 5805305 (1998-09-01), Abe
patent: 5818964 (1998-10-01), Itoh
patent: 5832143 (1998-11-01), Suga et al.

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