| 摘要 |
A color film analyser (100) having a plurality of adjustable control elements (121). The elements act on color representative video signals (106, 113, Vo) which are derived from a film (50) being analyzed. The elements vary a video characteristic of the video signals and thereby vary the display (108) of the video signal generated by the analyzer. Peak detectors (200) detect the video level of the color representative video signals. The detected peaks are converted into digital information (300, 301) and compared (400) to a reference. The reference is derived from underexposed, overexposed and properly exposed reference films. The control elements are automatically adjusted (403) in response to the results of the comparison. |
