Only predict on folders, no longer support single image

Closes #209 (closed)

dan/ocr/predict/__init__.py

@@ -25,20 +25,7 @@ def add_predict_parser(subcommands) -> None:
     parser.add_argument(
         "--model",
         type=pathlib.Path,
-        help="Path to the model to use for prediction.",
-        required=True,
-    )
-    parser.add_argument(
-        "--parameters",
-        type=pathlib.Path,
-        help="Path to the YAML parameters file.",
-        required=True,
-        default="page",
-    )
-    parser.add_argument(
-        "--charset",
-        type=pathlib.Path,
-        help="Path to the charset file.",
+        help="Path to the directory containing the model, the YAML parameters file and the charset file to use for prediction.",
         required=True,
     )
     parser.add_argument(
@@ -129,19 +116,6 @@ def add_predict_parser(subcommands) -> None:
         type=int,
         default=None,
     )
-    parser.add_argument(
-        "--threshold-method",
-        help="Thresholding method.",
-        choices=["otsu", "simple"],
-        type=str,
-        default="otsu",
-    )
-    parser.add_argument(
-        "--threshold-value",
-        help="Thresholding value.",
-        type=int,
-        default=0,
-    )
     parser.add_argument(
         "--gpu-device",
         help="Use a specific GPU if available.",