Image Color Temperature Correction via External Object Recognition
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Solution Overview
Problem
Existing electronic devices face difficulties in correcting white balance for images lacking achromatic colors, and they struggle with recognizing various colors due to hardware limitations in size and storage capacity.
Innovation Solution
An electronic device with a camera module and communication capabilities that recognizes external objects, transmits image color information to a server, receives attribute information about the light source, and corrects the image's color temperature using this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a database for storing information about various colors is implemented to recognize various colors and achromatic colors in an image, then color recognition capability is improved, but hardware size and storage capacity requirements increase
Solution Approach 1:
The patent introduces an external electronic device (server) as an intermediary to store and process color database information. The electronic device transmits only necessary color information to the external device, which then determines light source attributes and returns correction parameters. This mediator approach allows comprehensive color recognition without requiring large local storage capacity in the electronic device.
2Measurement precision
If the electronic device processes all color information locally to correct white balance, then correction accuracy is improved, but processing complexity and time increase
Solution Approach 1:
The patent segments the white balance correction process into multiple stages: the electronic device performs initial image acquisition and transmits color information to an external device, which then performs light source determination and returns correction parameters. This segmentation distributes computational complexity across different devices, maintaining high correction accuracy while reducing local processing burden.
3Ease of operation
If the electronic device uses only achromatic colors for white balance correction, then processing simplicity is improved, but correction reliability deteriorates when achromatic colors are absent in the image
Solution Approach 1:
The patent changes the approach from relying solely on achromatic color parameters to using chromatic color parameters as well. By transmitting color information about various objects to an external device, the system can determine light source attributes based on chromatic colors when achromatic colors are absent, thereby maintaining correction reliability while expanding the适用范围 beyond simple achromatic-based methods.
Data Source
AI summary
Disclosed is an electronic apparatus comprising: a camera module; a communication module; and a processor electrically connected to the camera module and the communication module, wherein the processor is capable of: obtaining an image of one or more external objects by using the camera module; recognizing at least one specified external object among the one or more external objects; transmitting image color information, corresponding to said at least one recognized specified external object, to an external electronic apparatus via the communication module; receiving attribute information on a light source for the image, determined using reference color information, corresponding to said at least one specified external object, and the image color information, from the external electronic apparatus; and correcting the color temperature of the image by using the attribute information received from the external electronic apparatus. Other various embodiments identified in the description are possible.