基于matlab的集装箱号码识别代码
时间: 2023-12-12 09:05:05 浏览: 150
以下是基于 MATLAB 的集装箱号码识别代码示例:
```matlab
% 读取图像
img = imread('container.jpg');
% 灰度化
gray_img = rgb2gray(img);
% 二值化
bw_img = imbinarize(gray_img, 'adaptive');
% 腐蚀
se = strel('square', 3);
eroded_img = imerode(bw_img, se);
% 提取连通域
cc = bwconncomp(eroded_img);
% 获取连通域属性
props = regionprops(cc, 'BoundingBox', 'Area');
% 计算连通域的长宽比
ratios = zeros(1, length(props));
for i = 1:length(props)
ratios(i) = props(i).BoundingBox(3) / props(i).BoundingBox(4);
end
% 查找长宽比最接近1的连通域
[~, idx] = min(abs(ratios - 1));
% 截取连通域并进行字符识别
bbox = props(idx).BoundingBox;
cropped_img = imcrop(gray_img, bbox);
recognized_text = ocr(cropped_img);
% 显示结果
figure;
subplot(1, 2, 1); imshow(img); title('原图像');
subplot(1, 2, 2); imshow(cropped_img); title('识别区域');
text(10, 10, recognized_text.Text, 'BackgroundColor', [1 1 1]);
```
需要注意的是,这个示例代码只能识别图像中最接近正方形的连通域,如果图像中存在多个连通域或者没有符合要求的连通域,识别结果可能会出错。此外,字符识别的准确率也受到图像质量、字符字体和大小等因素的影响。
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