| 摘要 |
<p>PROBLEM TO BE SOLVED: To magnify or reduce image data through interpolation by partly changing the sharpness of the image data. SOLUTION: A cubic spline interpolation operating means 31 and a B-spline interpolation operating means 32 obtains interpolation signal SC, SB from original image data Sorg received by an interpolation arithmetic unit 30. An adder means 33 obtains a difference signalΔS of the interpolation signals SC, CB and a correction means 34 corrects the difference signalΔS to obtain a correction signalΔS'. An adder means 35 subtracts the correction signalΔS' from the interpolation signal SC to obtain interpolation image data S'. A reproduction means 40 receives the interpolation image data S' and reproduces the data into a visible image.</p> |
