期刊论文

中文

武汉轻工大学学报

2095-7386

2017

36

4

54-58

10.3969/j.issn.2095-7386.2017.04.011

本校为第一机构

针对传统浮雕生成算法中存在的图像轮廓模糊、细节特征不清晰这一问题,为了生成具有立体感的清晰浮雕图像,提出了一种基于光照方向的浮雕图像生成算法.首先利用Pre-witt梯度算子对灰度图像进行边缘提取并反色处理,得到轮廓清晰的梯度图像;然后设置照明光源的位置分别为左侧,上侧以及左上侧以求得不同光照方向下浮雕图像的显示效果;最后将不同光照方向下的浮雕图像进行合并,从而生成立体感强,层次鲜明的浮雕图像.实验结果表明,该方法依据光源照射方向与成像之间的关系对图像进行的二次处理,可以更好的显示出图像的细节特征以及边缘轮廓,与传统的单一采用主对角线光源的浮雕生成算法相比,更加清晰...

Aiming at the problem of how to make the relief more stereoscopic and esthetic,a new method based on lighting direction is proposed.The relief image represents a three-dimensional effect of sculpture and the direction of the light is related to its effect,in order to obtain a clear gradient image based on the relationship between the direction of light and the imaging,this paper uses the Prewitt operator to extract the gray image and reverse its color.And then the position of light source is set to the left side,the upper side,and the upper left side respectively to obtain the display in diffe...