Histogram data collector for applying progressively adjusted...

Details Histogram data collector for applying progressively adjusted... Histogram data collector for applying progressively adjusted...

2006-11-21

2006-11-21

Tran, Phuoc (Department: 2624)

Image analysis

Histogram processing

With a gray-level transformation

Reexamination Certificate

active

07139426

ABSTRACT:
A system is disclosed for equalizing the distribution of pixel intensities in an image displayed by an oscilloscope. In a primarily software implementation, the maximum pixel intensity (I) present in the rasterized input image, the maximum available display intensity (P) and the desired image resolution (R) are the input variables which permit the calculation of thresholds or bins to which each pixel is assigned. By iteratively performing the analysis of existing pixel intensities and bin thresholds, the number of pixels in each bin may be optimized to form an equalized histogram. Another implementation of the histogram equalization system utilizes software to optimize a hardware-based histogram collector.

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patent: 5995656 (1999-11-01), Kim
patent: 6545681 (2003-04-01), Passi et al.
patent: 0822416 (1998-02-01), None
patent: 0947840 (1999-10-01), None
patent: 1022679 (2000-07-01), None
patent: WO0146907 (2001-06-01), None

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