Local Tone Mapping Operator based on Layer Decomposition

Abstract

Abstract— The amount of levels that a picture can support is directly determined by its dynamic range. A dynamic range of 256 is often utilised. The display device that the picture will be presented on must be taken into account when defining the dynamic range of an image. A dynamic range is considered large dynamic range if it exceeds 256. This range might go as high as 10,000. Display devices are unable to display this type of picture.

This is unable to distinguish between a lot of visual information. In order for the standard display units to adapt the format, this type of visual information must be translated. This needs to be completed with little information loss. Several tone mapping operators carry out this really important task. There are two kinds of tone mapping operators: local and global. The same mapping function is applied throughout the picture using global tone mapping operators, whereas local tone mapping

For local areas of the picture, operators employ several mapping functions. Despite the improved quality of global TMOs, the converted picture has several halo effects. To lessen these consequences, a global TMO based on decomposition is presented in this study. The image is broken down into two layers: base and detail. To enhance the quality of the transformed picture, a hybrid decomposition and optimisation are suggested.