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Image detection method, device and equipment and computer storage medium

A technology for image detection and to-be-detected images, which is used in image communication, parts of color TVs, parts of TV systems, etc., to achieve the effect of improving image recognition performance

Active Publication Date: 2021-02-02
APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current backlight detection method usually has good detection performance for the situation where the global image is affected by the backlight scene, but there is still a lack of a good detection scheme for the situation where the image is partially backlighted

Method used

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  • Image detection method, device and equipment and computer storage medium
  • Image detection method, device and equipment and computer storage medium
  • Image detection method, device and equipment and computer storage medium

Examples

Experimental program
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Embodiment 1

[0042] figure 1 The flow chart of the method provided by Embodiment 1 of the present invention, such as figure 1 As shown in , the method may include the following steps:

[0043] In 101, the image data of the image to be detected in the grayscale color space is acquired.

[0044] The backlight detection in the present invention is based on the image to be detected, and the way to acquire the image to be detected is different for different scenes. This part will be specifically covered in the subsequent scenario examples.

[0045] The so-called color space refers to the use of spatial coordinates to describe the color range. The commonly used color spaces mainly include RGB (red, green, blue) color space, CMYL (cyan, magenta, yellow, black) color space, LAB (lightness, A channel) , B channel) color space, etc. The color space used in the embodiment of the present invention is a grayscale color space. After the image to be detected is obtained, the color space used by the ...

Embodiment 2

[0060] figure 2 The flow chart of the method provided by Embodiment 2 of the present invention, such as figure 2 As shown in , the method may include the following steps:

[0061] In 201, the image data of the image to be detected in the grayscale color space is acquired.

[0062] In 202, execute figure 1 102 and 103 in the flow shown.

[0063] use figure 1 In the manner described above, determine the luminance cumulative histogram of the image data to be detected under the grayscale color space, and determine the slope of the luminance cumulative histogram variation of each luminance interval relative to the luminance value. For details, refer to relevant records in Embodiment 1, and details are not repeated here.

[0064] In 203, determine the grayscale distribution mean and variance of the image data to be detected under the grayscale color space.

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Abstract

The embodiment of the invention provides an image detection method, apparatus and device, and a computer storage medium. The method comprises the steps of obtaining to-be-detected image data of a to-be-detected image in a grayscale color space; determining a brightness accumulation histogram of the to-be-detected image data in the gray scale color space; determining the slope of the brightness accumulation histogram variation of each predetermined brightness interval relative to the brightness value; comparing the corresponding slope of each predetermined brightness interval with a preset slope threshold value; and determining that the to-be-detected image is related to a backlight scene if it is counted that the number of the predetermined brightness intervals of which the corresponding slopes are greater than a preset slope threshold meets a preset requirement. According to at least one embodiment of the invention, the image recognition performance under the condition of local backlight can be improved.

Description

【Technical field】 [0001] The embodiments of the present invention relate to the technical field of computer applications, and in particular to an image detection method, device, equipment and computer storage medium. 【Background technique】 [0002] Image acquisition equipment is currently widely used in many electronic devices, such as mobile phones equipped with cameras, digital cameras equipped with cameras, drones equipped with visual sensors, etc. In the process of image acquisition, it is inevitable to encounter specific shooting scenes such as backlighting. For the convenience of subsequent image processing or the accuracy of various decision-making based on the image, it is necessary to detect whether the image is backlit or not and other specific shooting scenes. [0003] The current backlight detection method usually has good detection ability for the situation where the global image is affected due to the backlight scene, but there is still a lack of a good detect...

Claims

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Application Information

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IPC IPC(8): H04N5/232H04N5/235
CPCH04N23/61H04N23/64H04N23/80H04N23/71
Inventor 张俊飞钱芳卫勇禤彪田山
Owner APOLLO INTELLIGENT DRIVING (BEIJING) TECHNOLOGY CO LTD
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