Tripartite sub-image histogram equalization for slightly low contrast gray-tone image enhancement

作者：

Highlights：

• A robust TSIHE method is proposed for slightly low contrast image enhancement, a less explored field in the literature.

• The proposed method is tested using 60 standard slightly low contrast test images.

• The proposed method enhances the image contrast and preserves the mean brightness very well.

• Statistical analyses reveal improvement in the BRISQUE, GMSD, MSSIM, FSIM, and PSNR measurements.

摘要

•A robust TSIHE method is proposed for slightly low contrast image enhancement, a less explored field in the literature.•The proposed method is tested using 60 standard slightly low contrast test images.•The proposed method enhances the image contrast and preserves the mean brightness very well.•Statistical analyses reveal improvement in the BRISQUE, GMSD, MSSIM, FSIM, and PSNR measurements.

论文关键词：Contrast enhancement,Slightly low contrast image,Histogram equalization,Mean brightness sustainability,Image quality assessment,Bit-plane specific measure

论文评审过程：Received 23 February 2021, Revised 23 June 2022, Accepted 11 September 2022, Available online 17 September 2022, Version of Record 30 September 2022.

论文官网地址：https://doi.org/10.1016/j.patcog.2022.109043