Browsing Institutt for datateknologi og informatikk by Journals "Journal of Imaging Science and Technology"
Now showing items 1-20 of 26
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An Adaptive Combination of Dark and Bright Channel Priors for Single Image Dehazing
(Journal article; Peer reviewed, 2017)Dehazing methods based on prior assumptions derived from statistical image properties fail when these properties do not hold. This is most likely to happen when the scene contains large bright areas, such as snow and sky, ... -
An Appearance Reproduction Framework for Printed 3D Surfaces
(Peer reviewed; Journal article, 2023)Bidirectional reflection distribution function (BRDF) is used to measure colour with gloss and surface geometry. In this paper, we aim to provide a practical way of reproducing the appearance of a 3D printed surface in ... -
Comparison of Pigment Classification Algorithms on Non-Flat Surfaces using Hyperspectral Imaging
(Peer reviewed; Journal article, 2023)Cultural heritage objects, such as paintings, provide valuable insights into the history and culture of human societies. Preserving these objects is of utmost importance, and developing new technologies for their analysis ... -
Data Hiding by White Modulation in Color Direct Binary Search Halftones
(Journal article; Peer reviewed, 2017)In this article, the authors propose a method for hiding a visual watermark in color printed images with arbitrary, natural content. The embedded watermark is imperceptible under normal illumination, but it is revealed ... -
Deep Learning Approaches for Whiteboard Image Quality Enhancement
(Peer reviewed; Journal article, 2019)Different whiteboard image degradations highly reduce the legibility of pen-stroke content as well as the overall quality of the images. Consequently, different researchers addressed the problem through different image ... -
Demosaicing of periodic and random colour filter arrays by linear anisotropic diffusion
(Journal article; Peer reviewed, 2018)The authors develop several versions of the diffusion equation to demosaic color filter arrays of any kind. In particular, they compare isotropic versus anisotropic and linear versus non-linear formulations. Using these ... -
The effect of camera calibration on multichannel texture classification
(Peer reviewed; Journal article, 2021)Abstract The efficiency of a texture classification procedure depends on the color space in which it is performed. Classification in a perceptually meaningful space requires chromatic coordinates obtained from a calibrated ... -
Evaluating Entropy of Geometric Accuracy in 3D Objects During Mesh Simplification
(Peer reviewed; Journal article, 2024)Size reduction of a point cloud or triangulated mesh is an intrinsic part of a three-dimensional (3D) documentation process, reducing the data volume and filtering out erroneous and redundant data obtained during acquisition. ... -
An Experiment-based Comparative Analysis of Pigment Classification Algorithms using Hyperspectral Imaging
(Peer reviewed; Journal article, 2023) -
Grey Balance in Cross Media Reproductions
(Peer reviewed; Journal article, 2023)Grey balance plays an important role in determining the device values needed to reproduce colours which appear achromatic throughout the tonal range. However, complete observer adaptation to the media white rarely occurs, ... -
Image Quality Assessment by Comparing CNN Features between Images
(Peer reviewed; Journal article, 2016)Finding an objective image quality metric that matches the subjective quality has always been a challenging task. We propose a new full reference image quality metric based on features extracted from Convolutional Neural ... -
Image Quality Metrics for the Evaluation and Optimization of Capsule Video Endoscopy Enhancement Techniques
(Journal article; Peer reviewed, 2017)Capsule endoscopy, using a wireless camera to capture the digestive track, is becoming a popular alternative to traditional colonoscopy. The images obtained from a capsule have lower quality compared to traditional ... -
Influence of acquisition parameters on pigment classification using hyperspectral imaging
(Peer reviewed; Journal article, 2021)Abstract Pigment classification of paintings is considered an important task in the field of cultural heritage. It helps to analyze the object and to know its historical value. This information is also essential for curators ... -
The Influence of Wedge Angle, Feedstock Color, and Infill Density on the Color Difference of FDM Objects
(Peer reviewed; Journal article, 2021)The surface appearance in additive manufacturing (AM) has attracted attention in recent years due to its importance in evaluating the quality of 3D printed structures. Fused Deposition Modeling (FDM), also known as Fused ... -
The Influence of Wedge Angle, Feedstock Color, and Infill Density on the Color Difference of FDM Objects
(Peer reviewed; Journal article, 2021)The surface appearance in additive manufacturing (AM) has attracted attention in recent years due to its importance in evaluating the quality of 3D printed structures. Fused Deposition Modeling (FDM), also known as Fused ... -
Multi-Attention Guided SKFHDRNet For HDR Video Reconstruction
(Peer reviewed; Journal article, 2023) -
On Large Local Error Accumulation in Multilevel Error Diffusion
(Journal article; Peer reviewed, 2016)Error diffusion is an often used method that transforms a continuous tone (multibit) image into an image of lower bit depth, most commonly into a binary output of black and white. The simplicity of the processing and the ... -
Orientation Modulation for Data Hiding in Chrominance Channels of Direct Binary Search Halftone Prints
(Journal article; Peer reviewed, 2016)In this article, we propose a joint halftoning and data hiding technique for color images. To ensure high quality of the printed image, the color direct binary search (CDBS) iterative halftoning algorithm is used. The ... -
RGB-NIR image enhancement by fusing bilateral and weighted least squares filters
(Journal article; Peer reviewed, 2017)Image enhancement using visible (RGB) and near-infrared (NIR) image data has been shown to enhance useful details of the image. While the enhanced images are commonly evaluated by observers’ perception, in the present work, ... -
Smartphones’ Skin Colour Reproduction Analysis for Neonatal Jaundice Detection
(Peer reviewed; Journal article, 2021)Abstract In recent years, smartphone-based colour imaging systems are being increasingly used for Neonatal jaundice detection applications. These systems are based on the estimation of bilirubin concentration levels that ...