                                "rounding": 20,
                                "help": "Filters out faces detected below this size. Length, in "
                                        "pixels across the diagonal of the bounding box. Set to 0 "
                                        "for off"})
          argument_list.append({"opts": ("-s", "--skip-existing"),
                                "action": "store_true",
                                "dest": "skip_existing",
                                "default": False,
                                "help": "Skips frames that have already been "
                                        "extracted and exist in the alignments "
 
</s> remove         to_process = self.images.images_found - processed
 </s> add         to_process = (self.images.images_found - processed) // self.skip_num
        argument_list.append({"opts": ("-een", "--extract-every-n"),
                              "type": int,
                              "action": Slider,
                              "dest": "extract_every_n",
                              "min_max": (1, 100),
                              "default": 1,
                              "rounding": 1,
                              "help": "Extract every 'nth' frame. This option will skip frames "
                                      "when extracting faces. For example a value of 1 will "
                                      "extract faces from every frame, a value of 10 will extract "
                                      "faces from every 10th frame."})
                                "rounding": 20,
                                "help": "Filters out faces detected below this size. Length, in "
                                        "pixels across the diagonal of the bounding box. Set to 0 "
                                        "for off"})
        argument_list.append({"opts": ("-een", "--extract-every-n"),
                              "type": int,
                              "action": Slider,
                              "dest": "extract_every_n",
                              "min_max": (1, 100),
                              "default": 1,
                              "rounding": 1,
                              "help": "Extract every 'nth' frame. This option will skip frames "
                                      "when extracting faces. For example a value of 1 will "
                                      "extract faces from every frame, a value of 10 will extract "
                                      "faces from every 10th frame."})
          argument_list.append({"opts": ("-s", "--skip-existing"),
                                "action": "store_true",
                                "dest": "skip_existing",
                                "default": False,
                                "help": "Skips frames that have already been "
                                        "extracted and exist in the alignments "
keep keep keep add keep keep keep keep keep keep
 Extract: Add option to extract faces from every nth frame 
lib/cli.py