CIFAR10数据可视化

clear;
clc;
close all;
strings={
    ‘airplane‘
    ‘automobile‘
    ‘bird‘
    ‘cat‘
    ‘deer‘
    ‘dog‘
    ‘frog‘
    ‘horse‘
    ‘ship‘
    ‘truck‘
    };
image_file_name=‘data_batch_1.bin‘;
fid1=fopen(image_file_name,‘rb‘);
images_data=fread(fid1,‘uint8‘);
fclose(fid1);

images_data=reshape(images_data,3073,[])‘;%读取进来的数据按列进行存放，为了之后按行正确读取，要对reshape后的数据进行转置，size为10000x3073
image_idx=images_data(:,1);%10000x1，第一列为图片点的label

for k=1:100:size(images_data,1)
    figure(100);
    for t=1:100
        image_r=reshape(images_data(k+t-1,2:1025),32,[])‘;%reshape且转置
        image_g=reshape(images_data(k+t-1,1026:2049),32,[])‘;
        image_b=reshape(images_data(k+t-1,2050:3073),32,[])‘;
        image_buffer=cat(3,image_r,image_g,image_b);
        subplot(10,10,t);
        imshow(uint8(image_buffer));
        title(strings{image_idx(k+t-1)+1});%label对应的string
    end
    input(‘press enter to next picture:‘);
    pause;
end