| 摘要 |
Pictures produced by a camera are corrected to eliminate the effect of camera shake or of unwanted movement of the camera relative to the subject being viewed. Using the apparatus of FIG. 1 the adjustments required for each frame of a cine film are established by displaying each frame on a screen 9 and using a light pen 10 to record the co-ordinates of two characteristic features, e.g. bright spots, on each frame. Circuitry 13, 14, 16, 17, 20, 21, 22, 23 calculates from these co-ordinates the correction in x and y directions, tilt and magnification required for each frame. The correction values are stored in a recorder 24 in association with the appropriate frame number derived from a film drive 2. The cine film is then re-filmed using equipment (not shown) which allows adjustment of the original film relative to the new film, and adjustment of magnification. This re-filming allows the appropriate corrections to each frame to be made by manual or automatic adjustment of the re-filming equipment in response to the correction values recorded at 24.
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