MATLAB 视频测平面移动距离 1)灰度校正;2)图像滤波;3)阈值分割;4)二值化;5)运动目标检测;6)形态学处理,腐蚀和膨胀运算;7)获取模板图像,并输入视频帧进行图像匹配;8)局部阈值分割提取该区域的灰度中心坐标,获得目标位置。代码实现
时间: 2023-09-07 08:11:22 浏览: 46
以下是一个基本的 MATLAB 代码示例,用于测量平面移动距离。这个代码假定您已经有一个视频文件和一个模板图像,您需要将其替换为自己的文件名。
```matlab
% 读入视频文件
videoFile = VideoReader('example.avi');
% 读入模板图像
templateImage = imread('template.jpg');
% 灰度校正
grayImage = rgb2gray(read(videoFile, 1));
grayImage = imadjust(grayImage);
% 图像滤波
filteredImage = medfilt2(grayImage, [3 3]);
% 阈值分割
thresholdedImage = filteredImage < 50;
% 运动目标检测
movingObject = zeros(size(thresholdedImage));
for i = 2:videoFile.NumberOfFrames
currentImage = rgb2gray(read(videoFile, i));
currentImage = imadjust(currentImage);
currentImage = medfilt2(currentImage, [3 3]);
binaryImage = currentImage < 50;
differenceImage = xor(binaryImage, thresholdedImage);
thresholdedImage = binaryImage;
movingObject = movingObject + differenceImage;
end
% 形态学处理,腐蚀和膨胀运算
se = strel('disk', 3);
erodedImage = imerode(movingObject, se);
dilatedImage = imdilate(erodedImage, se);
% 获取模板图像,并输入视频帧进行图像匹配
[templateHeight, templateWidth] = size(templateImage);
corrMatrix = zeros(size(dilatedImage));
for i = templateHeight/2+1:size(dilatedImage, 1)-templateHeight/2
for j = templateWidth/2+1:size(dilatedImage, 2)-templateWidth/2
corrMatrix(i, j) = corr2(templateImage, dilatedImage(i-templateHeight/2:i+templateHeight/2, j-templateWidth/2:j+templateWidth/2));
end
end
% 局部阈值分割提取该区域的灰度中心坐标,获得目标位置
centerOfMass = zeros(size(corrMatrix, 1), 2);
for i = 1:size(corrMatrix, 1)
localThreshold = graythresh(corrMatrix(i,:));
localBinaryImage = corrMatrix(i,:) > localThreshold;
centerOfMass(i,:) = regionprops(localBinaryImage, 'Centroid').Centroid;
end
% 显示结果
figure;
imshow(dilatedImage);
hold on;
plot(centerOfMass(:,1), centerOfMass(:,2), 'r-', 'LineWidth', 2);
```
请注意,这只是一个示例代码,您可能需要根据自己的实际情况进行修改和优化。
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