IMAGE ROTATION DEVICE, IMAGE ROTATION METHOD, AND PROGRAM,申请号JP20130059427-传众专利搜索

IMAGE ROTATION DEVICE, IMAGE ROTATION METHOD, AND PROGRAM

申请公布号：JP2014187451(A)

申请号：JP20130059427

申请日期：2013.03.22

申请公布日期：2014.10.02

申请人：

DAINIPPON PRINTING CO LTD

发明人：TABATA SATOSHI;MOMOHARA MOEKO;MATSUBA YASUHISA;OGAWA TAKASHI

分类号：H04N5/225;G06T1/00;G06T7/60;H04N5/232

主分类号：H04N5/225

摘要：PROBLEM TO BE SOLVED: To provide an image rotation device for rotating a photographed image in a correct direction even when condition information in photographing does not exist.SOLUTION: An image input unit 21 rotates an input photographed image at 0 degree, 90 degrees, 180 degrees, and 270 degrees to obtain input images of four patterns. A face detection unit 22 detects a face region in each of the input images of four patterns. A centroid estimation unit 24 estimates a region whose density is an extreme value from a plurality of face regions detected by the face detection unit 22. A primary determination processing unit 25 determines a face direction on the basis of a face region which is detected by the face detection unit 22 and estimated as one region corresponding to one person by the centroid estimation unit 24; and rotates the input image on the basis of a result of the determination. A secondary determination processing unit 26 determines a face direction on the basis of a plurality of feature regions detected correspondingly to one person by the face detection unit 22, when the face direction cannot be detected by the primary determination processing unit 25; and rotates the input image on the basis of a result of the determination.