Photography – With exposure objective focusing means – focusing aid – or... – Having indicator
Reexamination Certificate
2005-07-26
2005-07-26
Perkey, W. B. (Department: 2851)
Photography
With exposure objective focusing means, focusing aid, or...
Having indicator
C348S346000, C348S333020, C358S453000
Reexamination Certificate
active
06922527
ABSTRACT:
The image display apparatus reads image data, which is recorded by a digital camera etc., from a recording medium etc.; sets an in-focus frequency spectrum threshold for in-focus determination according to the resolution (pixel count) and compressibility of the inputted image data; analyzes a frequency spectrum of the image data; and determines whether a location where frequency components whose levels are higher than the threshold exist in an image. The location having the most frequency components whose levels are higher than the threshold is determined as an in-focus location. If an in-focus location exists, a mark showing the in-focus location is displayed on a screen of a display device. If no in-focus location exists in the image, the image display apparatus performs display of warning information and/or a warning by sound, and prompts the user to confirm necessity of printing.
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patent: 2003/0002870 (2003-01-01), Baron
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