Image data processing system with false color suppression signal

Details Image data processing system with false color suppression signal Image data processing system with false color suppression signal

1994-02-02

1995-10-10

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

345153, 348645, G09G 300

Patent

active

054574773

ABSTRACT:
An image data processing system is disclosed which includes an image data receiving element, e.g., a CCD module, for receiving and converting a plurality of image data into electrical signals. The image data processing system further includes a color processing subsystem which includes the color separation unit, the RGB generation unit, the white balance control unit, the gamma correction unit, and the color space converter, for processing the electrical signals for generating color display output representing the color space of the image data. The image data processing system further includes a luminance processing units which includes two 1-H line memory units, the low pass filter, the edge enhancement unit, the summing circuit and the gamma correction unit, for filtering and processing the electrical signals for generating luminance output representing the luminance field of the image data. The luminance processing unit further including a false color suppression signal generating unit for generating a false color suppression signal by using a brightness threshold unit and an edge threshold unit which employs a high edge threshold and low edge threshold. The luminance processing unit further provides the false color suppression signal to the color processing unit, e.g. to the color space converter, for suppressing the display of the false color.

REFERENCES:
patent: 4480266 (1984-10-01), Hashimoto
patent: 4754323 (1988-06-01), Kaji et al.
patent: 4974066 (1990-11-01), Tusji

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