IMAGE PROCESSING DEVICE, IMAGE PROCESSING PROGRAM AND RECORDING MEDIUM FOR SAID PROGRAM

The present invention provides an image processing apparatus, comprising: an image signal inputting unit 11 for inputting a plurality of image signals different from one another in exposure time, first and second level converting factor calculating units 12, 13 for calculating a level converting fac...

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Bibliographic Details
Main Authors SUMIYA, KAZUNORI, HIZUME, TAROU, SUBE, MAKOTO, YATA, MANABU
Format Patent
LanguageEnglish
French
German
Published 02.11.2005
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:The present invention provides an image processing apparatus, comprising: an image signal inputting unit 11 for inputting a plurality of image signals different from one another in exposure time, first and second level converting factor calculating units 12, 13 for calculating a level converting factor for each of the image signals, a weighting factor calculating unit 14 for calculating a weighting factor for each of the image signals; and an adding unit 17 for adding up the image signals respectively multiplied by the level converting factors multiplied by the weighting factors. The image processing apparatus thus constructed can obtain images of wide dynamic range in a simply manner as well as reduce loss of minute image information due to accumulated processing delays and computing errors.
Bibliography:Application Number: EP20040708504