如何用matlab读取ct图像边缘

用edge指令

----帮助文件-----

EDGE Find edges in intensity image.

EDGE takes an intensity or a binary image I as its input, and returns a

binary image BW of the same size as I, with 1's where the function

finds edges in I and 0's elsewhere.

一个简单的例子 Example

-------

Find the edges of the circuit.tif image using the Prewitt and Canny

methods:

I = imread('circuit.tif')

BW1 = edge(I,'prewitt')

BW2 = edge(I,'canny')

figure, imshow(BW1)

figure, imshow(BW2)

如果原图是不是二值图像的话可以先试试1楼所说的中值滤波。

如果想处理问题中的二值图像，可以试试连通区域检测算法，统计各个连通区域的面积，然后将面积很小的白色连通区域填充为黑色。

---