Abstract
Edge preserving denoising is a realistic procedure in most image-editing methodologies such as privacy protection, action movie creation, and visual aesthetic enhancement. But, the existing image-edge smoothening methods are developed without being semantically aware and content-aware. Earlier developed denoising methods are efficient in reducing Gaussian noise, yet suffer from maintaining the denoised image quality, and also image edges have been blurred. The main intent of this work is to introduce a new denoising approach of a modified Deep Convolutional Neural Network (DCNN) to protect image edges. Initially, the noisy image is decomposed and denoised by the Adaptive thresholding functions-based Discrete Wavelet Transform, in which the thresholding functions of the wavelet are optimized by a hybridized optimization algorithm named Dragonfly-Harris Hawks Optimization (D-HHO). It is used for enhancing the image denoising with the MDCNN. Where the constraints of Deep CNN are tuned by the same D-HHO to minimize the multi-objective function in terms of joint loss representing both MSE loss and perpetual loss. Once the images are decomposed, denoising is performed which ensures the preservation of image edges. The experimental results confirm that the suggested network attains enriched performances.
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Srinivasa Rao Thamanam, K. Manjunathachari & K. Satya Prasad An Edge-Preserving Image Denoising Framework by Adaptive Thresholding-Based DWT and Modified Deep Structured Architecture. Neural Process Lett 55, 9353–9386 (2023). https://doi.org/10.1007/s11063-023-11205-4
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DOI: https://doi.org/10.1007/s11063-023-11205-4