Apparatus, method, and computer program for processing image, and recording medium storing the computer program

摘要

An image processing apparatus includes a non-linear smoother for smoothing input video data with an edge component thereof preserved, and outputting smoothed video data, a subtractor for subtracting the smoothed video data from the input video data and outputting high-frequency component video data not containing the edge component, an outline extractor (42) for extracting the edge component from the smoothed video data and outputting edge component video data, a first amplifier (43) for varying a signal level of the edge component video data, a second amplifier (41) for varying a signal level of the high-frequency component video data not containing the edge component, and an adder (44) for adding video data output from the first amplifier (43) and video data output from the second amplifier (41) to one of the smoothed video data and the input video data.