Title
Image colorization using sparse representation
Abstract
Image colorization is the task to color a grayscale image with limited color cues. In this work, we present a novel method to perform image colorization using sparse representation. Our method first trains an over-complete dictionary in YUV color space. Then taking a grayscale image and a small subset of color pixels as inputs, our method colorizes overlapping image patches via sparse representation; it is achieved by seeking sparse representations of patches that are consistent with both the grayscale image and the color pixels. After that, we aggregate the colorized patches with weights to get an intermediate result. This process iterates until the image is properly colorized. Experimental results show that our method leads to high-quality colorizations with small number of given color pixels. To demonstrate one of the applications of the proposed method, we apply it to transfer the color of one image onto another to obtain a visually pleasing image.
Year
DOI
Venue
2013
10.1109/ICASSP.2013.6637917
ICASSP
Keywords
DocType
ISSN
grayscale image,image representation,overlapping image patches,color pixels,over-complete dictionary,image restoration,image colorization,color cues,high-quality colorizations,colorized patches,color transfer,colorization,yuv color space,sparse representation,image colour analysis,gray scale,vectors,color,dictionaries
Conference
1520-6149
Citations 
PageRank 
References 
9
0.54
5
Authors
4
Name
Order
Citations
PageRank
Jiahao Pang114912.42
Oscar C. Au21592176.54
Ketan Tang310612.98
Yuanfang Guo49518.21