Title
Grey-scale image colorization by local correlation based optimization algorithm
Abstract
In this paper, we present a grey-scale image colorization technique by using local correlation based optimization algorithm. The core of our colorization method is to formalize the colorization problem as minimizing a quadratic cost function under some assumptions that are mainly based on the local image characters. It can be successfully applied in colorization a variety of grey-scale images. In our colorization method, users only need to freely scribble the desired color in the input grey-scale image, which is a great improvement upon the traditional manual colorization techniques. By introducing new local connectivity factor and distance factor, our approach can effectively alleviate the color diffuseness in different regions, which is one of main problem in previous colorization methods. Additionally, by exploiting subsampling in YUV space, we accelerate the colorization process with nearly the same good results. Experiments show that better colorization results can be obtained faster with our method.
Year
DOI
Venue
2005
10.1007/11590064_2
VISUAL
Keywords
Field
DocType
colorization process,optimization algorithm,local correlation,grey-scale image colorization,traditional manual colorization technique,grey-scale image,better colorization result,grey-scale image colorization technique,previous colorization method,colorization method,colorization problem,input grey-scale image,cost function
Computer vision,Scribble,Image colorization,Quadratic cost,Minification,Quadratic function,Correlation,Minimisation (psychology),Artificial intelligence,Optimization algorithm,Mathematics
Conference
Volume
ISSN
ISBN
3736
0302-9743
3-540-30488-6
Citations 
PageRank 
References 
2
0.39
8
Authors
4
Name
Order
Citations
PageRank
Dongdong Nie1202.42
Lizhuang Ma2498100.70
Shuangjiu Xiao34114.18
Xuezhong Xiao41326.33