STV3550 datasheet(31/144 Pages) STMICROELECTRONICS

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STV3550 데이터시트(PDF) 31 Page - STMicroelectronics

부품명	STV3550

상세설명	LCD and Matrix Display TV Processor

PDF	144 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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STV3550

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3.3.6.2 White Stretch

The White Stretch algorithm is used on a dark sequence in order to increase the contrast on the

entire image. By default, the inflexion point is based on the average brightness, but another value

can be set by user. Two modes are available by setting the range parameter:

1. When Range = 0, the inflection point is based on the value the average brightness.

2. When Range = 1, 2 or 3, the inflexion point IS NOT BASED on the value of the average

brightness, but is used as parameter for an extended set of possibilities.

The following figures shows various examples of the white stretch algorithm with the following

values: Gain = 7, Range = 0 and an Average Brightness of 64.

Figure 19: White Stretch 1

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