| US 7,586,520 B2 | ||
| Image correction apparatus, image correction program storage medium, image correction method, and image correction system | ||
| Takashi Igarashi, Kanagawa (Japan) | ||
| Assigned to FUJIFILM Corporation, Tokyo (Japan) | ||
| Filed on Jun. 07, 2005, as Appl. No. 11/146,279. | ||
| Claims priority of application No. 2004-168396 (JP), filed on Jun. 07, 2004; and application No. 2005-159413 (JP), filed on May 31, 2005. | ||
| Prior Publication US 2006/0078218 A1, Apr. 13, 2006 | ||
| Int. Cl. H04N 5/228 (2006.01) | ||
| U.S. Cl. 348—208.6 [348/207.2; 382/199; 382/255; 396/52] | 30 Claims |
| 1. An image correction apparatus which corrects image blur caused by movement of a photographic device shooting an image,
comprising:
a blur detection section which detects blur of the image in a main subject area of the image; and
a correction section which corrects the blur detected by the blur detection section; wherein the blur detection section comprises:
an edge analyzing section , which creates multiple edge profiles based on edge analysis post image capture in the context
of a single frame, said edge profiles including edge width information,
a blur direction calculating section, which uses said edge width information to calculate a direction of the blur caused by
the movement of the photografic device,
a blur width calculating section, which calculates an image blur width, said image blur width being an average value of edge
widths in the direction of the blur calculated by the blur direction calculating section, and
an of-focus condition analyzing section, which calculates an out-of-focus condition, said out-of-focus condition being an
average value edge width in all directions; and
wherein the correction section corrects the image based on the calculated image blur width and the calculated out-of-focus
condition.
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