How could I divide my data of CNN?

As the picture shows,I use my own pictures as my datas of CNN, and I want to use LeaveOneOut( cross-validation ) to divide my pictures to CNN,but the path can not be changed, how could I do it?![BTBC2BN7LM$9UAN)OI}NPP|549x117![}{78$M[]0P53CK1RDW$BSJ|424x156

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