The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 2010
Filed:
May. 02, 2007
Sadami Okada, Sakado, JP;
Satoshi Ejima, Tokyo, JP;
Ken Utagawa, Yokohama, JP;
Hideki Matsuda, Tokyo, JP;
Kenichi Ishiga, Kawasaki, JP;
Sadami Okada, Sakado, JP;
Satoshi Ejima, Tokyo, JP;
Ken Utagawa, Yokohama, JP;
Hideki Matsuda, Tokyo, JP;
Kenichi Ishiga, Kawasaki, JP;
Nikon Corporation, Tokyo, JP;
Abstract
The present invention is intended to record image data having a wide dynamic range is a file together with image data having a narrow dynamic range. First, an image recording apparatus separately gradation-converts image data to be recorded into primary data having a narrow dynamic range and secondary data having a wide dynamic range. Then, the image recording apparatus calculates data that determines correlation between the primary data and secondary data and employs the calculated data as tertiary data. The image recording apparatus records the primary data and the tertiary data in a file. On the other hand, an image reproducing apparatus reads out primary data and tertiary data that were recorded in the above manner and reproduces secondary data having a wide dynamic range based on the primary data and the tertiary data.