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Technique for Analysis of Surface Topography of Photographic Prints by Spatial Analysis of First Surface Reflectance

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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.
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Document Type: Research Article

Publication date: July 1, 2002

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  • The Journal of Imaging Science and Technology (JIST) is dedicated to the advancement of imaging science knowledge, the practical applications of such knowledge, and how imaging science relates to other fields of study. The pages of this journal are open to reports of new theoretical or experimental results, and to comprehensive reviews. Only original manuscripts that have not been previously published, nor currently submitted for publication elsewhere, should be submitted.

    IS&T's JIST-first publication option allows authors wishing to present their work at conferences, but have a journal citation for their paper, to submit a paper to JIST that follows the same rigorous peer-review vetting and publication process as traditional JIST articles, but with the benefit of a condensed time-to-publication time frame and guaranteed conference presentation slot.

    Please note: For purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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