A negative density range control system uses color hue contrast to provide a print of a picture, by comparing the relationship between negative hue density and print emulsion density requirement and providing an appropriate density for a printing process, whether converting a positive digital image to negative digital image with a specific hue density color or making a print by contact printing a hue density negative rendered from a digital image file.

 
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< Automatic focusing apparatus

< Mobile device and mobile telephone device having imaging function

> Apparatus for and method of recording program information

> Music similarity function based on signal analysis

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