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Image brightness adjusting method, image brightness adjusting device, computer equipment and storage medium

A technology of image brightness and adjustment method, which is applied in the field of image processing, can solve the problems of image brightness unfavorable image processing, loss of brightness details, image distortion, etc., and achieve the effect of simple and fast implementation process and simple and convenient adjustment process

Active Publication Date: 2018-11-30
PING AN TECH (SHENZHEN) CO LTD
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  • Claims
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Problems solved by technology

[0002] In the traditional image processing process, it is usually necessary to judge and adjust the brightness of the image data in advance. The reason is that the brightness of the image is too high or too low, which is not conducive to subsequent image processing.
However, the existing image brightness adjustment is generally linear adjustment, that is, based on a certain coefficient, the original brightness value is multiplied by the coefficient to adjust the brightness of the image. 255, it is necessary to truncate the brightness values ​​of pixels exceeding the brightness value of 255, so that all of them are set to 255, resulting in the loss of brightness details and image distortion

Method used

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  • Image brightness adjusting method, image brightness adjusting device, computer equipment and storage medium
  • Image brightness adjusting method, image brightness adjusting device, computer equipment and storage medium
  • Image brightness adjusting method, image brightness adjusting device, computer equipment and storage medium

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The image brightness adjustment method provided by the embodiment of the present invention can be applied in such as figure 1 An application environment in which a client communicates with a server over a network. The server receives the image sent by the client, and the server quickly adjusts the brightness of the received image without detecting the content in the image. Among them, the clients can be but not limited to various personal compu...

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Abstract

The invention discloses an image brightness adjusting method, an image brightness adjusting device, computer equipment and a storage medium. The method comprises the steps of: on the basis of the brightness value of each pixel point in an image to be processed, obtaining an original brightness histogram of the image to be processed; on the basis of the original brightness histogram, obtaining thedark boundary brightness value and the bright boundary brightness value of the original brightness histogram; on the basis of the dark boundary brightness value and the bright boundary brightness value of the original brightness histogram, adjusting the brightness of the original brightness histogram, so that a target brightness histogram is obtained; fitting the target brightness histogram, so that a smooth curve is obtained; and, on the basis of the smooth curve, adjusting the brightness value of each pixel point in the image to be processed, so that a balanced image is obtained. Thereby, the brightness of the image to be processed can be adjusted rapidly.

Description

technical field [0001] The invention relates to the field of image processing, in particular to an image brightness adjustment method, device, computer equipment and storage medium. Background technique [0002] In the traditional image processing process, it is usually necessary to judge and adjust the brightness of the image data in advance. The reason is that if the image brightness is too high or too low, it is not conducive to subsequent image processing. However, the existing image brightness adjustment is generally linear adjustment, that is, based on a certain coefficient, the original brightness value is multiplied by the coefficient to adjust the brightness of the image. 255, it is necessary to truncate the brightness values ​​of pixels exceeding the brightness value of 255, so that all of them are set to 255, resulting in the loss of brightness details and image distortion. Contents of the invention [0003] Based on this, it is necessary to provide an image br...

Claims

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Application Information

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IPC IPC(8): H04N9/64H04N9/77G06T5/40
CPCG06T5/40H04N9/643H04N9/77
Inventor 戴磊
Owner PING AN TECH (SHENZHEN) CO LTD
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