Visual Contrast In Photographic Prints*
| Autor: | R. H. Jenneiahn, W. W. Woodbury, C. J. Bartleson |
|---|---|
| Rok vydání: | 1963 |
| Předmět: |
Frequency response
genetic structures Scale (ratio) business.industry Computer science General Arts and Humanities media_common.quotation_subject General Physics and Astronomy Context (language use) eye diseases Visual contrast Contrast (vision) Tone reproduction Computer vision Artificial intelligence business media_common |
| Zdroj: | The Journal of Photographic Science. 11:35-41 |
| ISSN: | 0022-3638 |
| DOI: | 10.1080/00223638.1963.11736895 |
| Popis: | A method of predicting visual contrast in the context of a photographic print is described. The method employs an equation derived from functions of the density scale, average gradient and density frequency response of the objective tone reproduction. Predictions of visual contrast based on this method are in good agreement with average evaluations of contrast made by a panel of 20 observers on a variety of photographic prints. The method also provides information on the relative contributions to over-all contrast of the factors in the prediction equation. In addition, the results provide an indication of the threshold for detection of over-all contrast in the context of a photographic reproduction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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