Photocopying – Projection printing and copying cameras – Identifying – composing – or selecting
Patent
1990-04-20
1991-06-11
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Identifying, composing, or selecting
355 68, 355 77, G03B 2752, G03B 2774, G03B 2780, G03B 2732
Patent
active
050236563
ABSTRACT:
A recording medium such as a photographic film is recorded with an image of a principal object and distance information of the principal object. The distance information is read during a printing operation for calculating a print exposure amount. In calculating the print exposure amount, a scene of an object image is discriminated in accordance with the object distance, and a calculating equation, which is different for each discriminated scene, is selected for use. Finer discrimination may be conducted by using flash emission data and object brightness data in addition to the distance information. Effective measurement points may be selected from all measurement points within a frame by taking the distance information into consideration, to calculate a print exposure amount by using the selected effective measurement points. A print exposure amount also may be calculated so as to use the distance information of a background image at each divisional frame area, together with the distance information of a principal object image. A characteristic value for each divisional frame area to be used for the calculation is weighted in accordance with a difference between the principal image distance and background image distance.
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Fuji Photo Film Co. , Ltd.
Wintercorn Richard A.
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