Data Mining and Algorithms Applied in Image Processing

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "E1: Mathematics and Computer Science".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 792

Special Issue Editors


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Guest Editor
School of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
Interests: image processing; tensor learning; fast algorithm

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Guest Editor Assistant
School of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
Interests: signal processing; image processing; deep learning

E-Mail Website
Guest Editor Assistant
School of Computer Science and Technology, Zhejiang University of Technology, Hangzhou 310023, China
Interests: artificial intelligence; signal analysis; biomedical engineering

Special Issue Information

Dear Colleagues,

Recent advances in mathematical modeling and learning algorithms are reshaping high‑dimensional imaging across multi-/hyperspectral fusion, remote sensing, and multi‑contrast MRI. This Special Issue seeks contributions that connect rigorous mathematics—including low‑rank models, transform‑domain and learnable priors, variational and inverse‑problem formulations, and optimization methods (e.g., ADMM, plug‑and‑play, implicit/explicit deep unfolding)—with scalable data‑driven architectures such as attention/Mamba‑style operators, neural operators, and diffusion models. We welcome works spanning theoretical guarantees (e.g., convergence, stability, identifiability), algorithmic innovations with interpretable structures, and application‑oriented studies on HSI/MSI fusion and super‑resolution, inpainting and completion with nonlocal/self‑similar priors, robust PCA and structured low‑rank recovery, change detection and semantic segmentation under distribution shift, and physics‑guided MRI reconstruction.

Prof. Dr. Jianwei Zheng
Guest Editor

Dr. Honghui Xu
Dr. Jiawei Jiang
Guest Editor Assistants

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Keywords

  • low‑rank tensor modeling
  • cascade/learnable transforms
  • HSI/MSI fusion and super‑resolution
  • nonlocal/self‑similar priors
  • deep unfolding / plug‑and‑play
  • neural operators / Mamba‑style operators
  • diffusion models for imaging
  • MRI reconstruction (multi‑contrast / multi‑sequence)
  • remote sensing change detection
  • semantic segmentation
  • optimization (ADMM, PnP)

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Published Papers (1 paper)

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Research

25 pages, 51444 KB  
Article
Local Contrast Enhancement in Digital Images Using a Tunable Modified Hyperbolic Tangent Transformation
by Camilo E. Echeverry and Manuel G. Forero
Mathematics 2026, 14(3), 571; https://doi.org/10.3390/math14030571 - 5 Feb 2026
Viewed by 474
Abstract
Low contrast is a frequent challenge in image analysis, especially within medical imaging and highly saturated scenes. To address this issue, we present a nonlinear transformation for local contrast enhancement in digital images. Our method adapts the hyperbolic tangent function using two parameters: [...] Read more.
Low contrast is a frequent challenge in image analysis, especially within medical imaging and highly saturated scenes. To address this issue, we present a nonlinear transformation for local contrast enhancement in digital images. Our method adapts the hyperbolic tangent function using two parameters: one to select the intensity range for modification and another to control the degree of enhancement. This approach outperforms conventional histogram-based techniques such as histogram equalization and specification in local contrast enhancement, without increasing computational cost, and produces smooth, artifact-free results in user-defined regions of interest. In addition, the proposed method was compared with CLAHE in MRIs, showing that, unlike CLAHE, the proposed method does not enhance the noise present in the background of the image. Furthermore, in deep learning contexts where dataset size is often limited, our method could serve as an effective data augmentation tool—generating varied contrast images while preserving anatomical structures, which improves neural network training for brain tumor detection in magnetic resonance imaging. The ability to manipulate local contrast may offer a pathway toward better interpretability of convolutional neural networks, as targeted contrast adjustments allow researchers to probe model sensitivity and enhance the explainability of classification and detection mechanisms. Full article
(This article belongs to the Special Issue Data Mining and Algorithms Applied in Image Processing)
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