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+# Dataset Directory
+
+This directory contains original input, and output of every step would also appear here.
+
+## Dataset
+
+In this repo, the dataset is downloaded from [LONI Image Data Archive (IDA)](https://ida.loni.usc.edu/login.jsp).  
+Collect and download AD and NC screening sample of ADNI1 and ADNI2, and extract them into this folder.  
+Thus, there would be four sub-directories in this floder as shown below:
+ 
+- ADNI1_Screening_AD  
+- ADNI1_Screening_NC  
+- ADNI2_Screening_AD  
+- ADNI2_Screening_NC  
+
+## Template
+
+Create a folder names "Template", copy the template volume from the path:  
+```
+$FSLDIR/data/standard/MNI152_T1_1mm.nii.gz
+```
+In which, *$FSLDIR* is the directory where FSL is installed in.