Academia Journal of Scientific Research 4(2): 027-036, February 2016
DOI: 10.15413/ajsr.2016.0265
ISSN 2315-7712
©2016 Academia Publishing
Research Paper
Pyrography Style Rendering with Line Enhanced
Accepted 22
nd
February, 2016
ABSTRACT
This paper proposes a non-photorealistic rendering technique that automatically
generates a Chinese pyrography style illustration from a 2D photograph. We
aimed at extracting and simulating a set of coherent, smooth lines from input
image which is the most important character of the real pyrography style. The
algorithm first obtains line drawings through DoG filter method, and these line
drawings were enhanced to generate smooth and coherent illustrations. We then
input different texture images as the background images, and merged the line
drawings to the different background images to acquire pyrography illustrations.
A variety of experimental results are presented to show the effectiveness of our
method in producing pyrography stylistic illustrations. Meanwhile, the proposed
method is simple, fast, and easy to implement.
Key words: Non-photorealistic rendering, pyrography simulating, line enhanced,
mergence.
INTRODUCTION
Nowadays, Non-Photorealistic Rendering (NPR) in general
can involve abstraction and stylization of the target images
which help people obtain sketch painting (Song et al.,
2014), Chinese calligraphy (Zhang et al., 2010) and pencil
drawing (Cewu et al., 2012) etc with the aid of computer.
Many of the existing image-based NPR methods are
intended to simulate the west aesthetic art paintings
including pen-and-ink illustration (Salisbury et al., 1994;
Salisbury et al., 1997), stipple drawing (Deussen et al.,
2000; Secord, 2002) and mosaic (Hausner, 2001) etc. In
addition, China has its own unique styles in art and culture
of east civilization during its history in five thousand years.
Then, many researchers also render some art works with
Chinese artistic character, such as Chinese calligraphy
(Song et al., 2005), Chinese ink (Fang et al., 2007) and
Chinese paper-cut (Tu et al., 2009) etc. Simulating different
art styles is a challenge of NPR technology, and realizing
different art styles has important theoretical and
application significance. However, there is a modest
method used to simulate national pryography of China.
Pyrography artistic is a very famous national artistic
work in Henan, Fujian province of China. With the heated
iron wire or iron pen, lines or patterns will be marked or
decorated in the wood or other materials. Different tones,
shades of painting will be created through varying the type
of tip used, temperature, or the manner in which the iron is
shaped. Chinese pyrography style can be generated in the
fine basswood, paper, silk, beech and leaf etc. Other woods
such as pine or oak, are also used (Han et al., 2011). Figure
1 shows the real pyropraphy work. It is observed that
outstanding and smooth lines or curves are the most
important character of this art. The key hue of this art work
is often brown and black, and the color effects can be
obtained through filling pigments. Chinese pyrography
maintains the traditional Chinese painting national style
and performances with strong lines, curves and
stereoscopic sense and as such it is very fascinating.
Some rendering method was proposed to simulate
pyrography style. Wang et al. (2010) simulated a
pyrography rendering method based on texture synthesis
and transfer. During the process, he improved the matching
texture method from source image to optimize errors
Qian Wenhua, Xu Dan, Yue Kun, Guan
Zheng, Pu Yuanyuan
School of Information Science and
Engineering, Yunnan University,
Kunming 650091.
*Corresponding author. E-mail:
qwhua003@sina.com