matlab dde图像处理算法
时间: 2023-08-20 11:11:32 浏览: 66
MATLAB中有多种图像处理算法可以用于边缘检测,其中包括LOG算子和Canny算子。LOG算子可以通过使用edge函数来实现,代码如下:
```matlab
I = imread('xian.bmp');
I1 = rgb2gray(I);
I2 = edge(I1, 'log');
imshow(I2);
title('LOG算子分割结果');
```
Canny算子也可以通过使用edge函数来实现,代码如下:
```matlab
I = imread('xian.bmp');
I1 = rgb2gray(I);
I2 = edge(I1, 'canny');
imshow(I2);
title('Canny算子分割结果');
```
此外,MATLAB还提供了边界跟踪函数bwtraceboundary,可以用于提取图像的边界。代码如下:
```matlab
I = imread('xian.bmp');
I1 = rgb2gray(I);
threshold = graythresh(I1);
BW = im2bw(I1, threshold);
dim = size(BW);
col = round(dim(2)/2) - 90;
row = find(BW(:, col), 1);
connectivity = 8;
num_points = 180;
contour = bwtraceboundary(BW, \[row, col\], 'N', connectivity, num_points);
imshow(I1);
hold on;
plot(contour(:, 2), contour(:, 1), 'g', 'LineWidth', 2);
title('边界跟踪图像');
```
这些算法可以用于在MATLAB中进行图像处理和边缘检测。
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