Image processing apparatus, method of setting tonal...

Details Image processing apparatus, method of setting tonal... Image processing apparatus, method of setting tonal...

2008-01-29

2008-01-29

Poon, King Y. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001900, C358S002100, C358S003100, C358S521000, C358S003010, C358S003280, C382S274000, C382S167000, C382S170000, C345S089000

Reexamination Certificate

active

10702170

ABSTRACT:
Four test patterns are concurrently displayed on a display of a computer. The test patterns include respective backgrounds and contrast areas. The test patterns, different from each other in pixel value, have identically shaped contrast areas. The contrast between the background and the contrast area remains unchanged from test pattern to test pattern. The contrast areas are adjusted in contrast with the pixel value of the background fixed until the test patterns look the same.

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