Patents by Inventor Cheol Ho Ohk

Cheol Ho Ohk has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9661183
    Abstract: The present disclosure relates an image correction apparatus and method. The image correction apparatus includes a printing unit for printing an image; a scratch detecting unit which detects a scratch region from a scan image scanned per line; and a restoration processing unit which performs the restoration of the scratch region by interpolation if the width of the scratch region detected by the scratch detecting unit is less than a predetermined value and, if the width thereof is not less than the predetermined value, does not perform a restoration of the scratch region but provides the printing unit with the scan image, thereby correcting an image distortion by easily detecting an image distortion due to foreign matter.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 23, 2017
    Assignee: SINDOH CO., LTD.
    Inventors: Nam Ik Cho, Byoung Bag Lee, Cheol Ho Ohk
  • Publication number: 20160088188
    Abstract: The present disclosure relates an image correction apparatus and method. The image correction apparatus includes a printing unit for printing an image; a scratch detecting unit which detects a scratch region from a scan image scanned per line; and a restoration processing unit which performs the restoration of the scratch region by interpolation if the width of the scratch region detected by the scratch detecting unit is less than a predetermined value and, if the width thereof is not less than the predetermined value, does not perform a restoration of the scratch region but provides the printing unit with the scan image, thereby correcting an image distortion by easily detecting an image distortion due to foreign matter.
    Type: Application
    Filed: July 8, 2015
    Publication date: March 24, 2016
    Inventors: Nam Ik CHO, Byoung Bag LEE, Cheol Ho OHK
  • Patent number: 8064654
    Abstract: Disclosed is a method for correcting a facial region detected from image data for photoprinting of improved image quality. The method includes an image data input step of inputting the image data to an image processing device; facial region detection step of extracting a skin color region from the inputted image data and detecting a planar face or a rotated planar face from a face-existing candidate region; a region division step of dividing the facial region detected in the facial region detection step; a correction step of extracting a distortion data value from the region divided in the region division step and conducting correction; and a photoprinting step of visually outputting the image data finally corrected in the correction step. Various types of distortion of the facial image is effectively corrected before it is printed by a photoprinter so that the image quality is improved.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: November 22, 2011
    Assignee: Sindoricoh Co., Ltd.
    Inventors: Cheol Ho Ohk, Hong II Kim
  • Publication number: 20090067682
    Abstract: Disclosed is a method for correcting a facial region detected from image data for photoprinting of improved image quality. The method includes an image data input step of inputting the image data to an image processing device; facial region detection step of extracting a skin color region from the inputted image data and detecting a planar face or a rotated planar face from a face-existing candidate region; a region division step of dividing the facial region detected in the facial region detection step; a correction step of extracting a distortion data value from the region divided in the region division step and conducting correction; and a photoprinting step of visually outputting the image data finally corrected in the correction step. Various types of distortion of the facial image is effectively corrected before it is printed by a photoprinter so that the image quality is improved.
    Type: Application
    Filed: November 16, 2007
    Publication date: March 12, 2009
    Inventors: Cheol Ho Ohk, Hong Il Kim