Apparatus and method for filtering image data
AssigneeRicoh Company, Ltd.
InventorHiroyuki Baba
Life of this patent
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Abstract
An image processing apparatus includes a filtering processor that includes a filter and switches between a pre-filtering path and a post-filtering path; a data compressor that compresses image data output from the filtering processor; an image data storage that stores the image data compressed; and a data expandor that expands the image data stored. The pre-filtering path includes a first path sending a raw image data to the data compressor via the filter and a second path passing the image data expanded. The post-filtering path includes a third path passing the raw image data to the data compressor and a fourth path sending the image data expanded to the filter.
Claims10
An image processing apparatus comprising:
- a filtering processor that includes a filter and switches between a pre-filtering path and a post-filtering path;
- a data compressor that compresses image data output from the filtering processor;
- an image data storage that stores the image data compressed;
- and
- a data expandor that expands the image data stored, wherein
- the pre-filtering path includes a first path sending a raw image data to the data compressor via the filter and a second path passing the image data expanded, and
- the post-filtering path includes a third path passing the raw image data to the data compressor and a fourth path sending the image data expanded to the filter.
A method for filtering image data comprising:
- choosing between a pre-filtering path and a post-filtering path;
- filtering raw image data when the pre-filtering path is chose;
- compressing the image data filtered when the pre-filtering path is chose, and compressing the raw image data when the post-filtering path is chose;
- storing the image data compressed;
- expanding the image data stored;
- and
- filtering the image data expanded when the post-filtering path is chose.
Dependencies are inferred from the claim text.