View source for TONE MAPPING METHOD AND APPARATUS: abstract simplified (18336837)

*This abstract for appeared for patent application  number 18336837 Titled 'TONE MAPPING METHOD AND APPARATUS'

==Simplified Explanation==

This abstract describes a method and device for tone mapping, which is a technique used to adjust the contrast and brightness of high dynamic range (HDR) images. The backend device receives metadata and an HDR image from a frontend device. The metadata includes feature parameters that define a mapping curve. The frontend device determines these feature parameters based on the luminance distribution of the HDR image. The mapping curve is then used to perform tone mapping on the HDR image, improving its display effect. This approach allows for more flexibility in designing the mapping curve and effectively enhances the visual quality of the HDR image.


==Original Abstract Submitted==

Tone mapping methods and apparatus provide for receipt by a backend device may of metadata and an HDR image from a frontend device and the generation of a mapping curve based on feature parameters of the mapping curve included in the metadata. Tone mapping on the HDR image can be performed based on the mapping curve. The feature parameters of the mapping curve are determined by the frontend device based on a luminance distribution status of the HDR image. In this way, the mapping curve parameters are determined based on the luminance distribution status of the HDR image so that design of the mapping curve is more flexible, and display effect of the HDR image can be effectively improved.