Personalized Tone Mapping via Feature-Based Preset Selection
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Solution Overview
Problem
The Dynamic Tone Mapping (DTM) scheme requires high-spec equipment and professional mastering technologies, making it difficult for individuals to produce images that reflect their personal preferences, as they often rely on pre-set schemes provided by device manufacturers or professional companies.
Innovation Solution
An electronic device that allows users to select a DTM scheme based on their preferences through user input, using a processor to analyze image features and apply tone mapping information sets stored in memory, enabling personalized image generation and reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If DTM scheme is used to apply different tone mapping information to each image frame, then image quality and realism are improved, but device complexity and operational difficulty increase significantly
Solution Approach 1:
The patent segments the tone mapping process by storing multiple pre-configured tone mapping information sets (first set, second set, third set, etc.) in memory, each corresponding to different image characteristics. The processor selectively applies the appropriate set based on analyzing specific image features, thereby achieving DTM-quality results without requiring complex real-time processing for each frame.
Solution Approach 2:
The patent performs preliminary action by pre-configuring multiple tone mapping information sets in advance, each optimized for different image types (e.g., high brightness, low brightness, specific color ranges). This allows the device to quickly select and apply the most suitable preset without performing complex real-time analysis, reducing operational difficulty while maintaining high image quality.
2Manufacturing precision
If professional mastering technologies are used to produce DTM images, then image production quality is improved, but ease of operation deteriorates as specialized tools and expertise are required
Solution Approach 1:
The patent implements self-service by enabling the electronic device to automatically analyze image features and select the most appropriate tone mapping information set without requiring user expertise in DTM techniques. The processor autonomously compares image characteristics against stored sets and applies the optimal preset, allowing ordinary users to achieve professional-quality results through simple operation.
Solution Approach 2:
The patent utilizes parameter changes by varying the tone mapping information sets based on detected image parameters such as brightness levels, color ranges, and contrast characteristics. The system adjusts which preset to apply by monitoring these parameters, thereby adapting to different image types automatically and simplifying the user experience while maintaining high production quality.
3Ease of operation
If pre-set DTM schemes are provided by manufacturers, then ease of operation is improved, but adaptability deteriorates as users cannot customize images according to their preferences
Solution Approach 1:
The patent introduces dynamics by allowing users to freely select from multiple tone mapping information sets (first set, second set, third set, etc.) based on their personal preferences and the specific image characteristics. This dynamic selection capability enables users to adapt the tone mapping process to their needs while maintaining ease of operation through a user-friendly interface.
Solution Approach 2:
The patent achieves universality by providing a multi-functional tone mapping system that can handle various image types (different brightness levels, color ranges, and characteristics) through a single device. The processor can select from multiple stored tone mapping information sets to accommodate diverse user preferences and image requirements, making the device versatile while remaining easy to operate.
Data Source
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AI summary
An electronic device comprises a camera; a memory configured to store a plurality of tone mapping information sets, each of the tone mapping information sets comprising image information of an image frame and tone mapping information of the image frame; and a processor, wherein the processor is configured to: select a tone mapping information set based on user input; acquire a first image frame captured through the camera; obtain a first feature of the first image frame by analyzing the first image frame; identify a second feature of second image frame corresponding to the selected tone mapping information set, based on image information of the second image frame; compare the first feature and the second feature; based on the comparison result, apply tone mapping to the first image frame using tone mapping information of the second image frame; and store image data of the first image frame, in the memory.