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Method and device for backlighting detection

A detection method and detection equipment technology, applied in the information field, can solve the problems of low accuracy of backlight detection

Active Publication Date: 2014-07-09
HUAWEI DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the backlight detection accuracy of the prior art is low

Method used

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  • Method and device for backlighting detection
  • Method and device for backlighting detection
  • Method and device for backlighting detection

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Embodiment Construction

[0073] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0074] figure 1 It is a flow chart of Embodiment 1 of the backlight detection method of the present invention. This embodiment provides a backlight detection method, which can be executed by any device that implements the backlight detection method, and the device can be implemented by software and / or hardware. Specifically, the device may ...

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Abstract

The embodiment of the invention provides a method and device for backlighting detection. The method comprises the steps that the brightness value of each image block in an image to be detected is obtained; according to the brightness value of each image block, the brightness relation between the adjacent image blocks is determined; according to the brightness relation between the adjacent image blocks, a dark zone and a bright zone in the image to be detected are determined and according to the dark zone and the bright zone, whether the image to be detected is in a backlighting scene or not is determined. The method and device for backlighting detection can improve the accuracy of backlighting detection.

Description

technical field [0001] Embodiments of the present invention relate to the field of information technology, and in particular, to a backlight detection method and device. Background technique [0002] In the imaging process of imaging devices such as digital cameras or video cameras, in the case of shooting against the light, the background part is often too bright and the real object of interest, that is, the object part, is too dark. Backlight detection can be widely used in functions such as intelligent scene recognition and automatic exposure control of imaging devices such as digital cameras and video cameras. [0003] Backlight detection in the prior art first divides the image into multiple rectangular blocks, then searches for continuous rectangular blocks whose luminance value is less than the luminance threshold, and counts the number of rectangular blocks that meet the conditions. If the total number of rectangular blocks is greater than the preset threshold, and ...

Claims

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Application Information

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IPC IPC(8): H04N5/235
CPCG06T7/0002G06T2207/30168G06T7/11G06T7/194G06T7/136H04N23/71G06T5/00
Inventor 周华罗巍邓斌杜成
Owner HUAWEI DEVICE CO LTD
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