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Brightness correction method and device, storage medium and electronic device

A brightness and correction value technology, which is applied in the field of image processing, can solve problems such as discrepancies and inability to display uniformity on LED displays

Active Publication Date: 2021-07-30
ZHEJIANG DAHUA TECH CO LTD
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Problems solved by technology

[0005] Embodiments of the present invention provide a brightness correction method and device, a storage medium, and an electronic device, so as to at least solve the problem of the discrepancy between the light point data obtained from the image and the actual light point data in the related art, resulting in the unevenness of the corrected LED display screen. display problem

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  • Brightness correction method and device, storage medium and electronic device
  • Brightness correction method and device, storage medium and electronic device

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Embodiment Construction

[0027] Embodiments of the present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence.

[0029] The method embodiments provided in the embodiments of the present application may be executed in mobile terminals, computer terminals or similar computing devices. Taking running on a mobile terminal as an example, figure 1 It is a block diagram of the hardware structure of a mobile terminal of a brightness correction method according to an embodiment of the present invention. Such as figure 1 As shown, the mobile terminal may include one or more ( figure 1 Only one is shown in the figure) processor 102 (processor 102 may include but not limited to a processing device s...

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Abstract

The embodiment of the invention provides a brightness correction method and device, a storage medium and an electronic device. The method comprises the following steps: determining an image coordinate of a lighting point in an obtained light emitting diode (LED) display screen image; determining brightness information of the lighting points based on the image coordinates; performing inverse transformation processing on a brightness distribution trend in the brightness information to obtain a brightness value and a chrominance value of the lighting point; determining a target correction value of the lighting point by using the brightness and chrominance value; and based on the actual brightness value of the lighting point and the target correction value, determining a correction coefficient of the lamp point in the LED display screen, and the correction coefficient is used for correcting the brightness of the lamp point in the LED display screen. According to the method and the device, the problem that the corrected LED display screen cannot uniformly display due to the difference between the lamp point data obtained by the image and the actual lamp point data in the related technology is solved, and the effect of accurately adjusting the display of the LED display screen is achieved.

Description

technical field [0001] Embodiments of the present invention relate to the field of image processing, and in particular, relate to a brightness correction method and device, a storage medium, and an electronic device. Background technique [0002] Light Emitting Diode (LED for short) display screen is a display screen that displays text, images, videos and other information by controlling semiconductor light emitting diodes. Advantages, it is widely used in various large public places such as railway stations, airports, concerts, etc. However, due to the limitations of the existing technology level and the unevenness of the manufacturers, the LED devices themselves have serious differences, resulting in uneven brightness and chromaticity in the final LED imaging picture, which greatly affects the visual effect. For this reason, point-by-point correction technology came into being. This technology collects the brightness and chromaticity information of each LED lamp on the s...

Claims

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Application Information

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IPC IPC(8): G06T5/00
CPCG06T5/92G06T5/70
Inventor 刘硕刘晓沐王松俞克强朱国卿张晴晴涂永亮
Owner ZHEJIANG DAHUA TECH CO LTD
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