一种基于自适应Canny算子的舰船红外图像边缘检测方法

提出了一种用于舰船红外图像边缘检测的自适应Canny算子边缘检测方法。先利用图像的局部最大标准差值为参考值设定高斯滤波尺度参数,然后采用基于梯度幅度直方图的类间方差最大法计算Canny算子的高低闽值,从而实现边缘的自动检测。实验结果表明,采用该方法检测出的舰船边缘清晰连续,噪声较少,优于传统的Canny算子边缘检测方法,并且具有很好的工程适用性。

An Adaptive Canny Operator Based Edge Detection Algorithm for Infrared Image of Ship

An adaptive Canny operator edge detection method for detecting the edges of infrared images of a ship is proposed. In the method, the maximum local standard deviation of an image is used to set Gaussian filter scale parameters for the reference value. Then, the maximum variance method based on a gradient histogram is used to calculate the high and low thresholds of the Canny operator so as to implement the automatic detection of edges. The experimental result shows that the ship edges detected by this method are clear and continuous with less noise. The method is better than the traditional Canny operator edge detection method and has a good engineering applicability.