Method, apparatus, and storage media for image processing
AssigneeCanon Kabushiki Kaisha
InventorsKiyoshi Kusama, Kentaro Matsumoto, Miyuki Enokida, Kunihiro Yamamoto, Yasuo Fukuda
Life of this patent
Estimating the term…
Abstract
To generating a mosaic image by combining a plurality of material images, an original image is divided into tiles and a material image having a characteristic similar to that of an image in each tile is applied to the tile. If more than one version of image data having different resolutions is provided as the image data for the material image, a low-resolution version of the image data is used to calculate a characteristic quantity of the image. Thus, the amount of time required to generate the mosaic image can be reduced.
Claims21
An image processing method comprising;
- a first calculation step, of calculating a characteristic quantity of a target image,
- a second calculation step, of calculating a characteristic quantity of a plurality of material images, and
- a selection step, of selecting a material images similar to the target image from among the according to the results of said first and second calculation steps,
- wherein, in a case where, for any of the plurality of material images, image data having different image qualities including different resolutions, different gradation levels, representing the material image is provided, a characteristic quantity of the material image is calculated from image data which does not have the highest image quality among the image data representing each of the plurality of material images and having different image qualities in said second calculation step.
An image processing apparatus comprising:
- first calculation means for calculating a characteristic quantity of a target image;
- second calculation means for calculating a characteristic quantity of a plurality of material images;
- and
- selection means for selecting one material image from among the plurality of material images similar to the target image according to the results of said first and second calculation means,
- wherein, in a case where, for any of the plurality of material images, image data having different image qualities including different resolutions, different gradation levels, representing the material image is provided, said second calculation means calculates a characteristic quantity of the material image from image data which does not have the highest image quality among the image data representing each of the plurality of material images and having different image qualities.
Dependencies are inferred from the claim text.