Colouring the near-infrared

C Fredembach, S Süsstrunk - Color and imaging conference, 2008 - library.imaging.org
Current digital camera sensors are inherently sensitive to the near-infrared part of the
spectrum. To prevent the near-IR contamination of images, an IR blocking filter (hot mirror) is …

Multispectral image enhancement for effective visualization

N Hashimoto, Y Murakami, PA Bautista… - Optics express, 2011 - opg.optica.org
Color enhancement of multispectral images is useful to visualize the image's spectral
features. Previously, a color enhancement method, which enhances the feature of a …

A perceptual approach to the fusion of visible and NIR images in the examination of ancient documents

M Gargano, D Bertani, M Greco, J Cupitt… - Journal of Cultural …, 2015 - Elsevier
Imaging techniques are commonly used to improve the legibility of text in ancient or
degraded documents. Infrared reflectography is one of the best methods for examining …

[HTML][HTML] Personalizing image enhancement for critical visual tasks: improved legibility of papyri using color processing and visual illusions

V Atanasiu, I Marthot-Santaniello - International Journal on Document …, 2022 - Springer
This article develops theoretical, algorithmic, perceptual, and interaction aspects of script
legibility enhancement in the visible light spectrum for the purpose of scholarly editing of …

Multispectral system for reflectance reconstruction in the near-infrared region

M Vilaseca, J Pujol, M Arjona, M de Lasarte - Applied optics, 2006 - opg.optica.org
We analyze the performance of a multispectral system that works in the near-infrared (NIR)
region of the electromagnetic spectrum (NIR: 800-1000 nm). The system, which uses a CCD …

[PDF][PDF] Color embedding and recovery based on wavelet packet transform

KW Ko, OS Kwon, CH Son, YH Ha - Journal of Imaging Science …, 2008 - library.imaging.org
Colorization algorithms, which hide color information in gray images and find them to
recover color images, have recently been developed. In these methods, it is important to …

Enhancing infrared color reproducibility through multispectral image processing using RGB and three infrared channels

M Sobue, H Otake, H Takehara, M Haruta… - Optical …, 2022 - spiedigitallibrary.org
Various techniques for image color reproducibility under low-light conditions have been
proposed, such as high sensitivity, a combination of visible (VIS) and infrared (IR) light, and …

[PDF][PDF] Color embedding and recovery using wavelet packet transform with pseudorandomized saturation code

KW Ko, DC Kim, WJ Kyung… - Journal of Imaging Science …, 2011 - library.imaging.org
Color embedding and recovery are investigated using a wavelet transform that enables
color information to be hidden in gray images and then retrieved to recover color images. In …

Non-Destructive Determination of Plant Pigments Based on Mobile Phone Data

M Vasilev, V Stoykova, P Veleva, Z Zlatev - TEM Journal, 2023 - ceeol.com
This paper proposes methods and tools for determining plant pigments using data from a
mobile phone video sensor. A disadvantage of the known studies in this field is that they are …

[HTML][HTML] Urban Environmental Quality Assessment by Spectral Characteristics of Mulberry (Morus L.) Leaves

S Dineva, P Veleva-Doneva, Z Zlatev - Environments, 2021 - mdpi.com
In this paper, an analysis of the possibility of passive determination of the degree of
environmental pollution based on data from the leaf blade of mulberry is made. With existing …