import random 
DPDT = "双塔动态池化"
UEFDT = "双塔联合融合"
IEFDT = "双塔嵌入融合"
ViLT = "视觉语言预训练"

def postprocess(method, recall_imgs):
    
    tmp1 = []
    tmp2 = []
    swap_width = 5
    if method == ViLT: 
        pass
    else:
        if method == DPDT: swap_width = 5
        elif method == UEFDT: swap_width = 2
        elif method == IEFDT: swap_width = 1

        random.seed(swap_width * 1001)
        tmp1 = recall_imgs[: swap_width]
        random.shuffle(tmp1)
        tmp2 = recall_imgs[swap_width: swap_width * 2]
        random.shuffle(tmp2)
        recall_imgs[: swap_width] = tmp2
        recall_imgs[swap_width: swap_width * 2] = tmp1