US 7,508,548 B2
Image processing method and image processing apparatus
Naoki Kuwata, Nagan-ken (Japan); and Yoshihiro Nakami, Nagano-ken (Japan)
Assigned to Seiko Epson Corporation, Tokyo (Japan)
Filed on Apr. 25, 2007, as Appl. No. 11/739,858.
Application 10/742718 is a division of application No. 09/093094, filed on Jun. 08, 1998, granted, now 6,738,527.
Application 11/739858 is a continuation of application No. 10/742718, filed on Dec. 22, 2003, granted, now 7,259,894.
Claims priority of application No. 9-151413 (JP), filed on Jun. 09, 1997; application No. 9-160159 (JP), filed on Jun. 17, 1997; application No. 9-284138 (JP), filed on Oct. 16, 1997; and application No. 9-294051 (JP), filed on Oct. 27, 1997.
Prior Publication US 2007/0201763 A1, Aug. 30, 2007
Int. Cl. G06K 9/40 (2006.01)
U.S. Cl. 358—3.01  [382/254; 382/266; 358/448] 7 Claims
OG exemplary drawing
 
1. An image processing method of processing image data comprising:
inputting image data comprising a plurality of pixels;
carrying out a plurality of predetermined statistical operations based on the image data of each pixel, thereby obtaining statistical results;
evaluating the image data based on the statistical results;
applying a plurality of evaluation criteria to the image data, thereby obtaining a plurality of evaluation results;
applying weighting to each evaluation result;
adding up the weighted evaluation results; and
obtaining a single evaluation result for the image,
wherein the statistical result is obtained based on sample data obtained by applying a predetermined sampling technique to the image data, the evaluation results are obtained individually by applying a plurality of different sampling techniques, and the single evaluation result is obtained by combining each of the statistical results with predetermined weighting.