Abstract: An object of the present invention is to provide an image processing apparatus capable of obtaining a sharp image having less noise, comprising: a horizontal edge strength calculating unit 22 for calculating an edge strength along a horizontal direction of a concerned pixel; and a prefilter 24 for carrying out a filter processing based on the horizontal edge strength, and performing noise reduction and edge enhancement, a vertical edge strength calculating unit 23 for calculating an edge strength along a vertical direction of the concerned pixel; and a prefilter 25 for carrying out a filter processing based on the vertical edge strength, and performing noise reduction and edge enhancement, thereby enabling to sharpen image data in the vicinity of the concerned pixel respectively along horizontal and vertical directions, and obtain an image having less noises as well as sharp for edge directions.

Abstract: An image signal inputted from an image signal input unit (10) is passed through LPFs (14 and 16) having different frequency response characteristics to remove a color signal component. A feature value calculator (20) calculates an edge value, saturation, and hue from pixels surrounding a target pixel, and a weighting coefficient calculator (22) determines a weighting coefficient k from the feature values calculated by the feature value calculator (20) and from the amounts of changes therein.

Abstract: [PROBLEM TO BE SOLVED] It is an object of the present invention to provide an image processing apparatus capable of obtaining a sharp image having less noise.

Abstract: It is an object of the present invention to provide an image processing device which can reduce time required to eliminate noises in motion pixels, in an image signal processing device using image signals composed of a plurality of frames to enhance a noise eliminating effect.