Image processing method and device

Abstract

The invention provides an image processing method and an image processing device for determining an environmental brightness value. The environmental brightness value is analyzed from three different environments, namely a static environment, a dynamic environment and a backlight environment. The method and the device are implemented mainly by receiving an image in an image flow, averaging brightness values of a part of pixels in the image under different selection conditions to generate a plurality of different brightness average value, and determining the environmental brightness value from the brightness average values. An environmental light source can be analyzed in an image processing way, and a sensing effect the same as that of an environmental light source sensor is achieved.

Description

[0001] This application is a divisional application of the invention patent application with the application number of 200910173431.7 and the application date of September 16, 2009, and the title is "image processing method and device". technical field [0002] The present invention relates to image processing technology, and in particular, to an image processing method and device for obtaining an ambient brightness value by analyzing the brightness information corresponding to pixels in an image, wherein the ambient brightness value can be further used to control the setting of other hardware devices. settings (eg output brightness). Background technique [0003] Nowadays, the design of electronic products is often closer to the needs of users and the use environment. For example, in order to achieve better use effects in different light environments, electronic products provide control devices that can adjust the light source output elements. For example, the LCD will adju...

AI Technical Summary

Problems solved by technology

However, power consumption is usually an aspect that needs to be considered in the design of notebook computers. Therefore, when providing a backlit keyboard, manufacturers usually add a control device that detects ambient light to switch the keyboard backlight, so that the keyboard backlight can only be turned on and off. It will only be turned on in a dark environment. Such a design often requires an additional ambient light sensor

Although the above design provides greater convenience for users, it also indirectly increases the overall hardware cost

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