Abstract
Visual examination of a large number of historic photographs indicates a significant variation in the surface texture in the paper on which the prints were made. This suggests that a thorough survey and quantification of surface texture would provide a useful tool for verifying the provenance of historic prints. The objective of the current project was to develop a digital imaging instrument and analytical protocol for capturing and evaluating the surface texture of papers beneath the gelatin/silver image of historic prints. The technique developed to accomplish this objective involves unique characteristics of the gelatin/silver print but is based on well known optical characteristics of materials. In particular, the behavior of first surface reflected light from the gelatin is distinguishable from the diffusely reflected light from the underlying paper, and analysis based on these properties has lead to a useful analytical tool for extracting an image of the paper surface texture and digitally eliminating the diffuse photographic image.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.