Image processing method and image processing apparatus
AssigneeCanon Kabushiki Kaisha
InventorHiroyuki Sanami
Life of this patent
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Abstract
This invention relates to an image processing method and image processing apparatus for improving the image quality of the boundary part of an image cutout or deletion area. According to this method, an area specified by a user as a cutout or deletion target area is slightly reduced or enlarged to eliminate an undesirable background area. In image cutout, the cutout image side is shaded off. In image deletion, the background image side is shaded off. This increases the image quality at the joint between the boundary part of the cutout image and an image to be composited. The image quality between the remaining background image and the deletion part also improves.
Claims6
An image processing method, comprising the steps of:
- specifying a boundary, designated by a user, of an area for cutting out an image including a plurality of pixels;
- automatically altering the specified boundary to reduce the area defined by the specified boundary;
- effecting a smooth change in pixel value on pixels near the altered boundary;
- and
- cutting out an image including the pixels whose pixel values are changed, of a closed area defined by the altered boundary.
Dependencies are inferred from the claim text.