在MATLAB上使用FilePart时出错

Question

我正在尝试将一组图像的文件路径拆分为trainingLabel数组，因为图像名称包含其ID。但是此错误总是弹出“输入必须是字符的行向量”。

文件路径示例：'C:\...\Folhas_1\1.jpg'

代码：

imageDatabase = imageSet('Folhas_1','recursive');

[training, test] = partition(imageDatabase, [0.8, 0.2]);

trainingFeatures = zeros(training.Count,10404);

featureCount = 1;
for i=1:training.Count
    sizeNormalizedImage = imresize(read(training(1),10),[150 150]);
    trainingFeatures(featureCount,:) = extractHOGFeatures(sizeNormalizedImage);
    [filepath,name,ext] = fileparts(training.ImageLocation(i));
    trainingLabel{featureCount} = name;    
    featureCount = featureCount + 1;
end

您对此有何线索？谢谢。