一种彩色图像边缘检测方法

详细信息

Method of edge detection for colour images

1.
Communication college,Xi′an University of Science and Technology,Xi′an 710054,China;
2.
College of Electron and Information,Xi′an Polytechnic University,Xi′an 710048,China

摘要: 研究了基于小波的彩色图像多尺度边缘检测的方法。选择了感知性强的YUV色彩空间，根据小波理论用多分辨分析的张量积代替小波函数的张量积，建立了二维的Mallat算法以实现快速小波变换。并对1个标准图样进行了多尺度的小波分解，得到各尺度下的边缘检测结果。可以看出，在较高尺度和较低尺度检测时，实验结果与理论分析相吻合，效果较好。
- 小波 /
- 边缘检测 /
- 彩色图像
Abstract: A method of multi-scale edge detection for colour images based on the wavelet was studied. By selecting perceptible YUV colour space, the tensor product of multi-resolution-analysis was substituted for the tensor product of the wavelet function to build up the two dimensional Mallat algorithm to implement the fast wavelet transform, according to wavelet analytical theory. A standard pattern was applied to the multi-scale wavelet decomposition and the edge-detection results were obtained in the case of each scale. The experiment result coincided with theory analysis in high multi-scale and low multi-scale detection.
- wavelet /
- edge detection /
- colour image