FFT
...\china_basic_map
...\...............\bou2_4l.dbf
...\...............\bou2_4l.shp
...\...............\bou2_4l.shx
...\...............\bou2_4p.dbf
...\...............\bou2_4p.shp
...\...............\bou2_4p.shx
...\demo.m
...\Image
...\.....\jiangnan.bmp
...\main.m
...\readshp.m
...\recover.m
...\Rmse.m
...\rmse1.m
...\test.m
...\watermark.m