Image analysis – Image enhancement or restoration – Intensity – brightness – contrast – or shading correction
Reexamination Certificate
2007-05-08
2007-05-08
Alavi, Amir (Department: 2624)
Image analysis
Image enhancement or restoration
Intensity, brightness, contrast, or shading correction
Reexamination Certificate
active
10237658
ABSTRACT:
The present invention provides a determination method to obtain the optimum image output quality. The method comprising the standard white plate is scanned prior to the scanning document sheet to obtain a first image data. Then, the first image data is calculated to generate the shading curve, noise level, and brightness data, which corresponding to each sensor device. Next, the shading curve or standard values returned to input into the calibration database. Thereafter, the scanning device scanned and exposed the document sheet to obtain a second imaging data that corresponding to each sensor device and to read out the standard curve (shading curve) from the calibration memory simultaneously. Next, a determination method utilized to determine the difference value between the two pixels at neighboring position, if the difference value is smaller than the standard value, then the two neighboring pixels is to be averaged and outputted the average value; else, the output pixel value is equal to the original position of the pixel value. Finally, the corrected image data is outputted which is corrected by calibration method.
REFERENCES:
patent: 6535302 (2003-03-01), Ikeda et al.
patent: 6801670 (2004-10-01), Kijima et al.
patent: 6920251 (2005-07-01), Toriyama
patent: 2002/0054395 (2002-05-01), Kubo
Alavi Amir
Berkeley Law & Technology Group LLP
LandOfFree
Method for adjusting image data with shading curve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for adjusting image data with shading curve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for adjusting image data with shading curve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3763097