Image processing apparatus with good highlight reproduction

Details Image processing apparatus with good highlight reproduction Image processing apparatus with good highlight reproduction

1989-10-19

1992-09-15

Fuller, Benjamin R.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358456, 358457, 358458, H04N 123

Patent

active

051482878

ABSTRACT:
In an image processing apparatus according to the present invention, the density of each pixel in a multi-level pixel block composed of a set of input multi-level pixel data is examined and a decision is made as to whether a pixel having a density which does not reach the minimum density below which printing is impossible, is present in the multi-level pixel block. If a pixel having a density below the minimum density is detected, the density of this pixel is distributed to another pixel position in the multi-level pixel block. In this manner, the number of pixels with a density which does not reach the minimum density below which printing is impossible, is reduced within each multi-level pixel block.

REFERENCES:
patent: 4196454 (1980-04-01), Warren
patent: 4553173 (1985-11-01), Kawamura
patent: 4561025 (1985-12-01), Tsuzuki
patent: 4578713 (1986-03-01), Tsao et al.
patent: 4680645 (1987-07-01), Dispoto et al.
patent: 4709250 (1987-11-01), Takeuchi
patent: 4733230 (1988-03-01), Kurihara et al.
patent: 4763199 (1988-08-01), Suzuki
patent: 4782398 (1988-11-01), Mita et al.
patent: 4783837 (1988-11-01), Kawamura et al.
patent: 4800442 (1989-01-01), Riseman et al.
patent: 4811037 (1989-03-01), Arai
patent: 4819066 (1989-04-01), Miyagi
patent: 4847654 (1989-07-01), Honma et al.
patent: 4847695 (1989-07-01), Arai

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