| 摘要 |
An electrophotographic printer including feature extraction means 12 for judging on the basis of pattern matching whether a reference area generated by area generating means 11 is an image which should be subjected to smoothing processing, and detecting the gradient of a contour portion of the image when the image is judged to be subjected to the smoothing processing, resolution enhancing means 13 for subdividing each pixel in the reference area generated by the area generating means 11 into small areas in accordance with the extraction result of the feature extraction means 12 to thereby perform resolution enhancing correction processing, density calculation means 15 for calculating the density of an overall selected area of the corrected pixels generated by the resolution-enhancing means 13 on the basis of the respective pixel values of the selected area, center-of-gravity calculation means 16 for calculating the center of gravity of an overall selected area of the corrected pixels generated by the resolution-enhancing means 13 on the basis of the respective pixel values of the selected area, and characteristic correction means 17 for correcting the density and the center of gravity calculated by the density calculation means 15 and the center-of-gravity calculation means 16 in accordance with preset input/output characteristic information of the engine.
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