发明名称 |
METHOD, APPARATUS FOR ENLARGING OR REDUCING AN IMAGE ON THE BASIS OF PRECALCULATED REFERENCE PEL CONTRIBUTION RATE DATA, TWO-DIMENSIONAL REFERENCE WINDOW SHIFTING AMOUNT DATA STORED IN A TABLE MEMORY |
摘要 |
The apparatus calculates the intensity P of picture points (pels) in a transformed image (filtered, enlarged, reduced) from the equation …<MATH>… where Ii are the intensities of each of m surrounding pels (reference window) in the original image and alpha i the associated weight factors.To allow flexible changes of the conversion, a loadable table (3) is provided which contains, for selected pels in the transformed image (e.g. along a scanning line), the associated weight factors of the pels in the reference window as well as the displacement by which the reference window has to be shifted to calculate the next transformed image pel. |
申请公布号 |
PH25403(A) |
申请公布日期 |
1991.06.03 |
申请号 |
PH19290000335 |
申请日期 |
1986.03.14 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
NAOSHI SUZUKI;HIROSHI YANAGISAWA;TAKETOSHI YOKEMURA |
分类号 |
G06T3/40;H04N1/393 |
主分类号 |
G06T3/40 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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