Method and apparatuf for processing an image
By synthesizing and compressing HDR images in a Luma or YUV domain, the electronic device addresses the display limitations of LDR/SDR mobile devices, enabling effective display of HDR content with improved brightness and contrast control.
KR102993505B1Active Publication Date: 2026-07-21SAMSUNG ELECTRONICS CO LTD
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Patent Information
- Authority / Receiving Office
- KR · KR
- Patent Type
- Patents
- Current Assignee / Owner
- SAMSUNG ELECTRONICS CO LTD
- Filing Date
- 2021-04-22
- Publication Date
- 2026-07-21
AI Technical Summary
Technical Problem
Mobile devices with low dynamic range (LDR) or standard dynamic range (SDR) displays are unable to effectively display high dynamic range (HDR) images, as existing multi-frame processing technologies do not account for the limitations of these displays.
Method used
An electronic device processes HDR images by synthesizing multiple images of different exposure levels, converting them into a Luma or YUV domain, fusing them, generating a gain map, and applying pixel-unit compression to generate a displayable bit range image suitable for LDR or SDR displays.
Benefits of technology
The solution allows HDR images to be compressed and displayed on LDR or SDR devices, preserving image details and user preferences for brightness and contrast, thereby enhancing the visual experience.
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Smart Images
Figure R1020210052525_ABST
Abstract
An electronic device is disclosed comprising: a memory for storing at least one instruction; and at least one processor, wherein the at least one processor executes the at least one instruction to acquire a first image, synthesizes a plurality of images of a transformed domain having different exposure levels based on the first image, fuses the plurality of images of the transformed domain, generates a gain map based on the first image and the fused image, and acquires a second image by applying a gain to the first image based on the gain map.
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