Color temperature detection method and device, computer readable storage medium and computer equipment
A detection method and a detection device technology, which are applied in the field of image processing, can solve problems such as picture color jumps, changes in main light sources, and affecting user experience, and achieve the effects of preventing color jumps, improving stability, and improving user experience
Active Publication Date: 2019-07-19
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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However, when the lens is tilted or moved to cause a slight angle change, the selected main light source will change frequently, which will cause the color tone of the image after white balance correction to jump all the time, affecting the user experience
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[0038] In order to make the purpose, technical solutions and advantages of the present application more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.
[0039] It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish a first element from another element.
[0040] see figure 1 , the color temperature detection method of the embodiment of the present application comprises the following steps:
[0041] S12: Divide the image into multiple regions;
[0042] S14: Process the image to identify the light source of each area;
[0043] S16: Calculate the col...
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The present application discloses a color temperature detection method, comprising: dividing an image into a plurality of regions; processing the image to identify the light source of each region; calculating the color temperature evaluation value and weight value of each region according to the light source; and Value calculates the equivalent color temperature estimate of the image. The application also discloses a color temperature detection device, a computer-readable storage medium and computer equipment. The color temperature detection device, computer-readable storage medium and computer equipment of the present application identify the light source of each area by partitioning the image, determine the color temperature evaluation value and weight of each area according to the light source of each area, and then according to each The color temperature evaluation value and weight of the area determine the equivalent color temperature evaluation value of the image, instead of relying solely on the color temperature of the main light source for white balance processing. In this way, it can prevent the color tone of the preview image from jumping when the main light source switches when the lens shakes , improve white balance stability, and improve user experience.
Description
technical field [0001] The present application relates to the technical field of image processing, and in particular, to a color temperature detection method, a color temperature detection device, a computer-readable storage medium, and a computer device. Background technique [0002] In a multi-light source scenario, when using the specular reflection method to correct the white balance of an image, one light source will be selected from multiple light sources as the main light source, and white balance compensation will be performed based on the color of the main light source. However, when the lens is tilted or moved to cause a slight angle change, the selected main light source will frequently change, which in turn causes the color tone of the image after white balance correction to keep jumping, which affects the user experience. SUMMARY OF THE INVENTION [0003] Embodiments of the present application provide a color temperature detection method, a color temperature d...
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IPC IPC(8): H04N17/02H04N9/73
CPCH04N17/02H04N23/88
Inventor 王会朝
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD