按面存储BGR文件

        file_out = open('./txt/'+out_txt_name, 'w')
        size=output_pred_mbbox.shape
         for i in range(0,size[0]):
                        every_img = output_pred_mbbox[i,:,:,:]
                        every_img_B = every_img[:,:,0]
                        every_img_G = every_img[:,:,1]
                        every_img_R = every_img[:,:,2]
                        for s in range(every_img_B.shape[0]):
                                for t in range(every_img_B.shape[1]):
                                                item = every_img_B[s,t]
                                                file_out.write(str(item)+'\n') 
                        for s in range(every_img_G.shape[0]):
                                for t in range(every_img_G.shape[1]):
                                                item = every_img_G[s,t]
                                                file_out.write(str(item)+'\n') 
                        for s in range(every_img_R.shape[0]):
                                for t in range(every_img_R.shape[1]):
                                                item = every_img_R[s,t]
                                                file_out.write(str(item)+'\n')   
         file_out.close()