In a file system of image data, since {HEAD ~ a plurality} of images are stored on a file medium for an effective use of a memory area, original images are encoded to obtain compressed data for {TAIL ~ storage} in a common practice 
In a file system of image data , since { HEAD ~ a plurality } of images are stored on a file medium for an effective use of a memory area , original images are encoded to obtain compressed data for { TAIL ~ storage } in a common practice
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH