For transferability test, we choose eight pairs of OHS images, and each pair contains one source image (S) and one target image (T):

S1: Changchun
T1: Jilin
S2: Wuxi
T2: Shanghai
S3: Guangzhou
T3: Zhongshan
S4: Xining
T4: Lanzhou
S5: Hetian
T5: Kelamayi
S6: Anyi
T6: Nanchang
S7: Changde
T7: Changsha
S8: Tianjin
T8: Tangshan

The 26 OHS images except for the eight pairs:

O1: Baoding
O2: Chongqing
O3: Fujin
O4: Huainan
O5: Huhehaote
O6: Jinzhong
O7: Luliang
O8: Manasi_1
O9: Manasi_2
O10: Nanmulin
O11: Neimenggu
O12: Qingdao
O13: Qinghuangdao
O14: Shawan
O15: Shenyang
O16: Shuozhou
O17: Songpan
O18: Taian
O19: Tongjiang_1
O20: Tongjiang_2
O21: Wuzhong
O22: Xundian
O23: Xuzhou
O24: Yidu
O25: Zangzu
O26: Zhongshan

The image patches have been normalized and scaled by 10000 to reduce storage cost. Divide the pixel values by 10000 and then the image patches can be used directly.