Patent ID: 7218354
Filing Date: 2007-05-15
Classification: G06T,H04N

Abstract:
1. An image processing apparatus, interpolating pixel data for a part where no data exists in a field of input signals from other pixel data existing in the field, the image processing apparatus comprising: a first correlation detection portion detecting correlation of pixels on a first pixel line and a second pixel line vertically or horizontally adjacent to a pixel to be interpolated in a plurality of directions around the pixel to be interpolated; a second correlation detection portion detecting at least one of correlation between a pixel on the first pixel line and a pixel on a third pixel line positioned two lines away from the pixel to be interpolated in a direction of the first pixel line or correlation between a pixel on the second pixel line and a pixel on a fourth pixel line positioned two lines away from the pixel to be interpolated in a direction of the second pixel line in a plurality of directions around an auxiliary pixel set in a position different from the pixel to be interpolated; a determining means determining an interpolation direction on the basis of detection results of the first correlation detection portion and the second correlation detection portion; and a producing means producing interpolation data of the pixel to be interpolated referring to data of pixels on the first pixel line and the second pixel line existing in the determined interpolation direction, wherein in the second correlation detection portion, if correlation between a pixel on the first pixel line and a pixel on the third pixel line is determined, a pixel on an imaginary line set between the first pixel line and the third pixel line is set as the auxiliary pixel, and if correlation between a pixel on the second pixel line and a pixel on the fourth pixel line is determined, a pixel on an imaginary line set between the second pixel line and the fourth pixel line is set as the auxiliary pixel.