Color image transferring method and apparatus

Details Color image transferring method and apparatus Color image transferring method and apparatus

1991-05-06

1992-12-22

Couso, Jose

Image analysis

Histogram processing

For setting a threshold

382 17, 358 75, 358 80, 358298, G06K 940

Patent

active

051739500

ABSTRACT:
In transferring color image data having a tone on a recording paper, a threshold matrix data for adjusting the tone is selected in accordance with the image data having a dot arrangement. The threshold conversion curve of the threshold matrix data selected is used to correct a variation in the tone of the image data due to mechanical and electrical variations in a color image transferring apparatus including variations in the rotation speed of a transferring drum, a power source voltage to be applied to a transferring head and a relative position between the transferring drum and the recording paper. This correction can achieve improved transference of the image data on the recording paper.

REFERENCES:
patent: 4117293 (1992-05-01), Asada et al.
patent: 5113248 (1992-05-01), Hibi et al.

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