fid_image=fopen（‘train-images.idx3-ubyte‘‘r‘）;
fid_label=fopen（‘train-labels.idx1-ubyte‘‘r‘）;
%?Read?the?first?16?Bytes
magicnumber=fread（fid_image4）;
size=fread（fid_image4）;
row=fread（fid_image4）;
col=fread（fid_image4）;
%?Read?the?first?8?Bytes
extra=fread（fid_label8）;
%?Read?labels?related?to?images
imageIndex=fread（fid_label）;
Num=length（imageIndex）;
%?Count?repeat?times?of?0?to?9
cnt=zeros（110）;
mkdir（‘train_img‘）;
mkdir（‘train_label‘）;
for?k=1:10000
????image=fread（fid_image[max（row）max（col）]）;?????%?Get?image?data
????val=imageIndex（k）;??????%?Get?value?of?image
????for?i=0:9
????????if?val==i
????????????cnt（val+1）=cnt（val+1）+1;
????????end
????end
????if?cnt（val+1）<10
????????str=[num2str（val）‘_000‘num2str（cnt（val+1））‘.bmp‘];
????elseif?cnt（val+1）<100
????????str=[num2str（val）‘_00‘num2str（cnt（val+1））‘.bmp‘];
????elseif?cnt（val+1）<1000
????????str=[num2str（val）‘_0‘num2str（cnt（val+1））‘.bmp‘];
????else
????????str=[num2str（val）‘_‘num2str（cnt（val+1））‘.bmp‘];
????end
????imwrite（image‘[‘./train_img/‘num2str（10000+k）‘.jpg‘]‘jpg‘）;
????fid=fopen（[‘./train_label/‘num2str（10000+k）‘.txt‘]‘w‘）;
????fprintf（fid‘%d‘val）;
????fclose（fid）;
end
fclose（fid_image）;
fclose（fid_label）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-01-06?21:05??mnist_data\
?????文件????????1262??2018-01-06?21:00??mnist_data\read_img.m
?????文件?????1648877??2017-11-26?21:39??mnist_data\t10k-images-idx3-ubyte.gz
?????文件????????4542??2017-11-26?21:39??mnist_data\t10k-labels-idx1-ubyte.gz
?????文件?????9912422??2017-11-26?21:30??mnist_data\train-images-idx3-ubyte.gz
?????文件???????28881??2017-11-26?21:30??mnist_data\train-labels-idx1-ubyte.gz