Dating images from scanned watermarks
AssigneeEastman Kodak Company
InventorsAnthony Scalise, Andrew C. Blose
Life of this patent
Estimating the term…
Abstract
A method for dating photographic prints comprising scanning a front side of a photographic print forming an image scan; scanning a back side of the photographic print forming a back scan; defining a database of photographic print watermarks, each photographic print watermark comprising a representation of a watermark pattern and an associated date range; analyzing the back scan using a cross-correlation process between the back scan and the watermark patterns in the database of photographic print watermarks to identify a matching photographic print watermark; determining a date range for the image scan responsive to the identified matching photographic print watermark; and associating the determined date range with the image scan.
Claims22
A method for dating photographic prints comprising:
- a) scanning a front side of a photographic print forming an image scan;
- b) scanning a back side of the photographic print forming a back scan;
- c) defining a database of photographic print watermarks, each photographic print watermark comprising a representation of a watermark pattern and an associated date range;
- d) analyzing the back scan using a cross-correlation process between the back scan and the watermark patterns in the database of photographic print watermarks to identify a matching photographic print watermark;
- e) determining a date range for the image scan responsive to the identified matching photographic print watermark;
- and
- f) associating the determined date range with the image scan.
A system for dating photographic prints comprising:
- a) a scanner for scanning a front side of a photographic print forming an image scan;
- b) a scanner for scanning a back side of the photographic print forming a back scan;
- c) a database of photographic print watermarks, each photographic print watermark comprising a representation of a watermark pattern and an associated date range;
- d) a processor for analyzing the back scan using a cross-correlation process between the back scan and the watermark patterns to identify a matching photographic print watermark from the database of photographic print watermarks and determining a date range responsive to the matching photographic print watermark;
- and
- e) a means for associating the date range associated with the identified photographic print watermark with the image scan.
Dependencies are inferred from the claim text.