The development of the quaternion wavelet transform

P Fletcher, SJ Sangwine - Signal Processing, 2017 - Elsevier
The purpose of this article is to review what has been written on what other authors have
called quaternion wavelet transforms (QWTs): there is no consensus about what these …

Example-based image colorization using locality consistent sparse representation

B Li, F Zhao, Z Su, X Liang, YK Lai… - IEEE transactions on …, 2017 - ieeexplore.ieee.org
Image colorization aims to produce a natural looking color image from a given gray-scale
image, which remains a challenging problem. In this paper, we propose a novel example …

Luminance-chrominance model for image colorization

F Pierre, JF Aujol, A Bugeau, N Papadakis… - SIAM Journal on Imaging …, 2015 - SIAM
This paper provides a new method to colorize gray-scale images. While the computation of
the luminance channel is directly performed by a linear transformation, the colorization …

Influence of color spaces for deep learning image colorization

A Bugeau, R Giraud, L Raad - … of Mathematical Models and Algorithms in …, 2023 - Springer
Colorization is a process that converts a grayscale image into a colored one that looks as
natural as possible. Over the years this task has received a lot of attention. Existing …

Recent approaches for image colorization

F Pierre, JF Aujol - Handbook of Mathematical Models and Algorithms in …, 2023 - Springer
In the last years, image and video colorization has been considered from many points of
view. The technique consists of the addition of a color component to a grayscale image. This …

Fast colorization of grayscale images by convolutional neural network

S Titus, JR NM - 2018 International Conference on Circuits and …, 2018 - ieeexplore.ieee.org
Image colorization is the process of adding chrominance values to an input grayscale
image. A grayscale image is the one which contains only the intensity values. Colorization is …

Hand-drawn grayscale image colorful colorization based on natural image

L Fang, J Wang, G Lu, D Zhang, J Fu - The Visual Computer, 2019 - Springer
This paper presents a novel colorization technique for hand-drawn grayscale images, such
as cartoons and sketches, based on reference natural images and simple user interactions …

Deep palette-based color decomposition for image recoloring with aesthetic suggestion

Z Li, Z Zha, Y Cao - … Modeling: 26th International Conference, MMM 2020 …, 2020 - Springer
Color edition is an important issue in image processing and graphic design. This paper
presents a deep color decomposition based framework for image recoloring, allowing users …

Image recoloring based on fast and flexible palette extraction

S Yan, S Xu, W Yang, S Zhang - Multimedia Tools and Applications, 2023 - Springer
Many operations, such as color transfer, recoloring, and image decomposition, are involved
in the color manipulation of image editing. This paper introduces a simple, intuitive and …

Overview of grayscale image colorization techniques

A Popowicz, B Smolka - Color Image and Video Enhancement, 2015 - Springer
Colorization is the process of adding color information to grayscale images. This operation
may be performed in various ways. The colorization may be automatic, without the user's …