Application Of Tone Mapping Operator Based On Bilateral Filtering In HDR Image And Video Sequence

In recent years,with the rapid development of information technology,the development of image technology has been favored by people.High dynamic range images give you a more intuitive and powerful sensory experience,and are closer to real effects than normal images.In the field of satellite remote sensing and medicine and VR,high dynamic range image technology is frequently used and has considerable research value.Since 90% of the output devices currently only support the dynamic range display,the tone mapping technique is used to compress the dynamic range of the image so that the low dynamic range device can also output.Many scholars have proposed many different algorithms to solve the dynamic range of images.The work carried out in this paper is:(1)This topic first analyzes the relevant situation of bilateral filter mapping and its research status at home and abroad,and focuses on the basic theory of image correlation,and analyzes the global and local bilateral filtering correlation algorithms.After analysis,it is found that most of the algorithms can not be properly reproduced.They only save some aspects of the image,so it is not excluded that the image will have poor contrast,color distortion,and loss of detail.(2)This paper then introduces the solution of the mapping algorithm in image contrast compression.This mapping algorithm can automatically adjust the scale factor of image contrast compression,achieve the target well,and adopt new theory and new methods to crack the bilateral.The filtering problem achieves the effect of approaching the real scene.On this basis,the algorithm design scheme of the subject is proposed.(3)Then,the algorithm of this subject is analyzed in detail,and the structure and processing flow of the algorithm are given.The subject also focused on the detailed design of the adaptive improvement of bilateral filtering parameters,and carried out a large number of experimental demonstrations,determined how to improve the algorithm,and verified.(4)Again,the problem is analyzed and compared by comparing the results of image processing by multiple tone mapping algorithms,and the rationality of the improved bilateral filtering tone mapping algorithm is confirmed.The paper also briefly mentions the application of the bilateral filtering tone mapping algorithm to high dynamic range video sequences.Finally,the experimental results show that the proposed algorithm can well map the HDR image and scientifically solve the problem of halo.This experiment better enhances the contrast of the partial image,and the image brightness change is improved in the layering sense,so that the HDR image can be repro duced well.