# Parallel(n_jobs=num_cores)(delayed(plot_cells)(df_list,groups_list,frame,data_dir,plot_traj,z_lim,hide_labels,no_bkg,lengthscale) for frame in df['frame'].unique())
# Parallel(n_jobs=num_cores)(delayed(plot_cells)(df_list,groups_list,frame,data_dir,plot_traj,z_lim,hide_labels,no_bkg,lengthscale) for frame in df['frame'].unique())