Removed extra variable, updated README.md

Author: Boris Sekachev

utils/dicom_converter/README.md

@@ -11,5 +11,11 @@ DICOM files with series (multi-frame) are saved under the same name with a numbe
 python3 -m venv .env
 . .env/bin/activate
 pip install -r requirements.txt
-python3 script.py input_data output_data
+```
+
+# Running
+
+```
+. .env/bin/activate # if not activated
+python script.py input_data output_data
 ```

utils/dicom_converter/script.py

@@ -80,7 +80,6 @@ def main(root_dir, output_root_dir):
     pbar = tqdm(dicom_files)
     for input_filename in pbar:
         pbar.set_description('Conversion: ' + input_filename)
-        input_subpath = input_filename.split(os.sep)[1:-1]
         input_basename = os.path.basename(input_filename)
 
         output_subpath = os.path.relpath(os.path.dirname(input_filename), root_dir)