Image analysis – Histogram processing – For setting a threshold
Patent
1989-10-05
1992-01-14
Moore, David K.
Image analysis
Histogram processing
For setting a threshold
358113, 250332, 250334, G06K 920
Patent
active
050816934
ABSTRACT:
Pictorial data from a thermal imager is applied on a line to a RAM at which a histogram representing the numerical distribution of pixel values is produced. This is applied to a microprocessor which uses the histogram to produce a transform to control the gain and offset of the data output of the processor. The microprocessor sets a look-up table to apply the transform to the received data, the output of the table being converted to analogue form at an analogue-to-digital converter.
REFERENCES:
patent: 4419692 (1983-12-01), Modisette et al.
patent: 4719350 (1988-01-01), Alm
patent: 4771267 (1988-09-01), Russell, Jr. et al.
patent: 4948964 (1990-08-01), Gohlke
patent: 4963036 (1990-10-01), Drisko et al.
Couso Jose L.
GEC--Marconi Limited
Moore David K.
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