matlab人脸识别代码
时间: 2023-09-02 16:14:19 浏览: 42
以下是一个基于MATLAB的简单人脸识别代码示例:
```matlab
clear all;
close all;
% Step 1: Load the dataset
data = imageDatastore('path/to/dataset','IncludeSubfolders',true,'LabelSource','foldernames');
% Step 2: Split the dataset into training and testing sets
[trainData,testData] = splitEachLabel(data,0.8);
% Step 3: Extract features using SURF
bag = bagOfFeatures(trainData,'Verbose',false);
trainFeatures = encode(bag,trainData);
testFeatures = encode(bag,testData);
% Step 4: Train a classifier
classifier = fitcecoc(trainFeatures,trainData.Labels);
% Step 5: Test the classifier
predictedLabels = predict(classifier,testFeatures);
% Step 6: Evaluate the performance of the classifier
accuracy = sum(predictedLabels == testData.Labels)/numel(testData.Labels);
disp(['Accuracy: ' num2str(accuracy)]);
```
注意:这只是一个简单的示例代码,实际上,人脸识别是一个非常广泛和复杂的领域。需要更多的数据预处理,特征提取和分类器优化等步骤来获得更好的性能。