摘要
针对阴影C1C2C3彩色不变性检测法时间开销大的缺陷,提出了改进的D1D2D3模型阴影检测法,减少了算法的时间复杂度;针对阴影LBP纹理不变性检测法在图像纹理不明显时所存在的误检现象,提出了改进的LPTD算子,提高了算法的准确率。进一步将上述两种改进方法进行有效融合,提出了一种阴影消除新算法,采用SUSAN算子去除阴影强边缘,有效解决了强光给阴影检测带来的误差,再通过形态学处理,消除了图像内部孔洞和噪声。实验结果表明,新算法的阴影消除效果更为理想。
According to defects existing in time complexity in the shadow model of the C1C2C3 which uses invariant color features, a method of DID2D3 shadow model is proposed, which can reduce the time complexity of the algorithm. According to defects existing in mistake detection in shadow LBP using invariant texture method when the image texture is not evident, the LPTD operator is put forward. And by fusing the two improved methods effectively, a new algorithm to eliminate shadows is proposed, which uses the SUSAN operator to remove the strong edge of shadow arid effectively solves the error caused by the strong light in the shadow eliminating. Through the morphological processing, the internal holes and noise of image are eliminated. Experimenl results show that the new algorithm is more ideal in the effect of shadow eliminating.
出处
《微型机与应用》
2013年第5期38-41,45,共5页
Microcomputer & Its Applications
基金
国家自然科学基金(51277032)
关键词
彩色不变性
纹理不变性
阴影消除
SUSAN
the invariance of the color
the invariance of the texture
shadow eliminate
SUSAN
