Digital filter for filtering image data

Details Digital filter for filtering image data Digital filter for filtering image data

1990-09-25

1992-09-01

Nguyen, Long T.

Boots, shoes, and leggings

G06F 1531

Patent

active

051445727

ABSTRACT:
A digital filter capable of obtaining a filter output by adding the products of image data in a filter operation area with a set of desired filter constants, selecting a predetermined portion among the calculated bits with an output bit selection circuit, and expressing the result retrieved according to the decimal point format of the filter constants. According to the digital filter described above, different types of filter operations such as a low-pass filter operation and a high-pass filter operation can be performed accurately.

REFERENCES:
patent: 4947446 (1990-08-01), Jutand et al.

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