Image processing apparatus having an automatic sampling modifica

Details Image processing apparatus having an automatic sampling modifica Image processing apparatus having an automatic sampling modifica

1985-02-26

1988-03-29

Groody, James J.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358287, 358 77, H04N 1387, H04N 1393, H04N 146

Patent

active

047347856

ABSTRACT:
An image processing apparatus for printing an image signal consisting of a number of horizontal scanning lines comprises: a sampling circuit for sampling this image signal; an interval changing circuit for changing the sampling interval in the horizontal direction of the sampling circuit; a region changing circuit for narrowing the sampling region of the sampling circuit whenever the sampling interval becomes narrow; and an interpolating circuit for performing the interpolation in the vertical scanning direction in response to the sampling interval becoming narrow. The number of sampling points or the number of horizontal scanning lines which are sampled by the sampling circuit may be changed. In this case, the interpolating circuit performs the interpolation in the vertical direction in response to such a reduction. The image signal may be a television signal consisting of color image signals of R, G and B. With this apparatus, the image signal can be recorded on a recording medium of the same size even in case of enlarging the original image.

REFERENCES:
patent: 4417805 (1983-11-01), Kishi
patent: 4558374 (1985-12-01), Kurata et al.
patent: 4568973 (1986-02-01), Ishida
patent: 4587621 (1986-05-01), DuVall
patent: 4658300 (1987-04-01), Kawamura et al.

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