matlab课程设计题目及程序
时间: 2023-08-03 11:06:16 浏览: 171
这里给出一个基于 MATLAB 的课程设计题目以及对应的程序,仅供参考:
题目:使用 MATLAB 实现一个简单的人脸识别系统。
程序:
首先需要准备一个包含多个人脸图像的数据集,可以使用已有的数据集或者自己收集并处理。
1. 读入数据集并进行预处理
```matlab
faceDataset = imageDatastore('faceDatasetPath', 'IncludeSubfolders', true, 'LabelSource', 'foldernames');
[trainingDataset, validationDataset] = splitEachLabel(faceDataset, 0.8, 'randomized');
imageSize = [224 224];
inputLayer = imageInputLayer(imageSize);
numClasses = numel(categories(faceDataset.Labels));
augmentedTrainingDataset = augmentedImageDatastore(imageSize, trainingDataset, 'ColorPreprocessing', 'gray2rgb');
augmentedValidationDataset = augmentedImageDatastore(imageSize, validationDataset, 'ColorPreprocessing', 'gray2rgb');
```
2. 定义卷积神经网络模型
```matlab
layers = [
inputLayer
convolution2dLayer(3, 16, 'Padding', 'same')
batchNormalizationLayer
reluLayer
maxPooling2dLayer(2, 'Stride', 2)
convolution2dLayer(3, 32, 'Padding', 'same')
batchNormalizationLayer
reluLayer
maxPooling2dLayer(2, 'Stride', 2)
convolution2dLayer(3, 64, 'Padding', 'same')
batchNormalizationLayer
reluLayer
maxPooling2dLayer(2, 'Stride', 2)
fullyConnectedLayer(numClasses)
softmaxLayer
classificationLayer];
```
3. 训练模型
```matlab
options = trainingOptions('adam', ...
'MiniBatchSize', 32, ...
'MaxEpochs', 10, ...
'InitialLearnRate', 1e-4, ...
'ValidationData', augmentedValidationDataset, ...
'ValidationFrequency', 30, ...
'ValidationPatience', Inf, ...
'Verbose', false, ...
'Plots', 'training-progress');
trainedNet = trainNetwork(augmentedTrainingDataset, layers, options);
```
4. 使用训练好的模型进行人脸识别
```matlab
testImage = imread('testImagePath');
testImage = imresize(testImage, imageSize(1:2));
testImage = imadjust(testImage);
predictedLabel = classify(trainedNet, testImage);
imshow(testImage)
title(['Predicted: ', char(predictedLabel)])
```
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