Image Processing Apparatus Dynamic Range Adjustment
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Solution Overview
Problem
Existing image processing technologies face challenges in easily adjusting the brightness and exposure of HDR and SDR images without increasing costs or operational burdens, particularly when switching between different display environments or monitors.
Innovation Solution
An image processing apparatus and method that generates a second image with a narrower dynamic range than the first, including a distribution image for luminance distribution and a scale image for indicating a predetermined luminance level, or an exposure index image with a cursor image, to facilitate easy adjustment of brightness and exposure without the need for multiple viewing environments or monitors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two viewing environments or two wave form monitors are prepared to check HDR and SDR images simultaneously, then the ability to check exposure of both image types is improved, but the cost increases
Solution Approach 1:
The patent combines the wave form monitors for HDR and SDR images into a single display device. The control unit processes both image types and presents their wave forms simultaneously on one monitor, eliminating the need for separate viewing environments while maintaining the ability to check exposure of both image types.
Solution Approach 2:
The single wave form monitor is designed to handle multiple functions: displaying wave forms for both HDR and SDR images, showing different luminance level ranges, and providing exposure checking capabilities for multiple image types simultaneously. This multi-functional approach replaces the need for dedicated separate monitors.
2Measurement precision
If the user switches between two images and changes the setting of the display or monitor to determine exposure, then the exposure determination accuracy is improved, but the operational burden increases
Solution Approach 1:
The control unit automatically prepares and displays the wave forms for both HDR and SDR images in advance, with appropriate luminance level ranges already configured. The user does not need to manually switch between images or adjust settings; everything is arranged beforehand for immediate exposure assessment.
Solution Approach 2:
The system performs self-service by automatically managing the display of multiple wave forms with different luminance characteristics. The control unit handles the complexity of presenting both image types appropriately without requiring user intervention to switch images or adjust display settings, thereby reducing operational burden while maintaining accuracy.
Data Source
AI summary
An image processing apparatus generates a second image having a second dynamic range which is narrower than a first dynamic range by processing a first image having the first dynamic range, generates an image that includes a distribution image for indicating luminance distribution of the first image and a scale image for indicating a predetermined luminance level in the second dynamic range, and controls a display unit to display the image.