Patent ID: 6088065
Filing Date: 2000-07-11
Classification: G06T

Abstract:
A contour correction apparatus comprising:first means for selecting a first sample from among at least five plural samples of an input digital video signal as an indication of an upper limit value, the plural samples corresponding to neighboring pixels respectively, the first sample having a value greater than a center value among values of the plural samples;second means for selecting a second sample from among at least the five plural samples as an indication of a lower limit value, the second sample having a value smaller than the center value among the values of the plural samples;third means for generating high-frequency signal components with respect to a center sample among the plural samples;fourth means for adding the high-frequency signal components generated by the third means to the center sample among the plural samples to generate an addition-resultant signal; andfifth means for limiting a value of the addition-resultant signal generated by the fourth means to within a range between the upper limit value and the lower limit value provided by the first and second means.