Method for correcting color photographic image data on the basis

Facsimile and static presentation processing – Static presentation processing – Attribute control

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Details

358 29, 358163, 355 38, G03F 308, G03B 2773, H04N 5228, H04N 973

Patent

active

048455512

ABSTRACT:
Data regarding color photographic images are detected with respect to three primary colors (red, green and blue) by receiving transmitted light through a color original film or light reflected thereon with respect to the three colors by an image sensor and detecting the image data of the original film with respect to the picture elements obtained by dividing the whole picture surface of the film. In this method, the image data is corrected in accordance with a manner in which image data of a reference film corresponding to the original film with respect to three primary colors is detected respectively by the image sensor and the thus detected data is preliminarily stored in the memory unit as calibration data. In connection with the calibration data, the image data of the original film is operated upon and processed every time that the image data of the original film is detected by the image sensor, whereby corrected image data is obtained. In practice, the image data is digitized and a subtraction method is utilized to subtract previously stored digital correction data obtained by scanning the reference film from the image data of the original film.

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