Initial commit

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+*.iml
+.idea
+*.mp4
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+#poetry.lock
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#pdm.lock
+#   pdm stores project-wide configurations in .pdm.toml, but it is recommended to not include it
+#   in version control.
+#   https://pdm.fming.dev/#use-with-ide
+.pdm.toml
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#  JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#  and can be added to the global gitignore or merged into this file.  For a more nuclear
+#  option (not recommended) you can uncomment the following to ignore the entire idea folder.
+#.idea/

LICENSE

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+MIT License
+
+Copyright (c) 2023 Markus Schmitz
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# demo-face-blur
+Video anonymization software in Python that blurs people's faces using OpenCV, YuNet.
+
+## Requirements
+- Python 3.9
+- OpenCV 4.7.0
+
+OpenCV is not part of requirements.txt as I am using a custom build with CUDA support. 
+You should be able to `pip install opencv-python==4.7.0` 
+
+## Usage
+1. add model files to `models` folder. Download:
+[face_detection_yunet_2022mar.onnx](https://github.com/opencv/opencv_zoo/blob/7e062e54cf5410c09b795ff71b4a255e58498c79/models/face_detection_yunet/face_detection_yunet_2022mar.onnx).
+2. `pip install -r requirements.txt`
+3. install OpenCV (see Requirements)
+4. run `python main.py input.mp4`
+
+## Credits
+Multi-threading video display code Copyright (c) 2018 Najam Syed (MIT License)
+https://nrsyed.com/2018/07/05/multithreading-with-opencv-python-to-improve-video-processing-performance/
+https://github.com/nrsyed/computer-vision/tree/master/multithread

VideoShow.py

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+"""
+Copyright (c) 2018 Najam Syed
+
+This source code is licensed under the MIT license found in the
+LICENSE file in the root directory of this source tree.
+
+@see https://github.com/nrsyed/computer-vision
+"""
+
+from threading import Thread
+import cv2
+
+
+class VideoShow:
+    """
+    Class that continuously shows a frame using a dedicated thread.
+    """
+
+    def __init__(self, frame=None):
+        self.frame = frame
+        self.stopped = False
+
+    def start(self):
+        Thread(target=self.show, args=()).start()
+        return self
+
+    def show(self):
+        while not self.stopped:
+            cv2.imshow("demo-face-blur", self.frame)
+            if cv2.waitKey(1) == ord("q"):
+                self.stopped = True
+
+    def stop(self):
+        self.stopped = True

main.py

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+"""
+Copyright (c) 2023, Markus Schmitz
+
+This source code is licensed under the MIT license found in the
+LICENSE file in the root directory of this source tree.
+"""
+import os
+import cv2
+import time
+import logging
+import argparse
+import numpy as np
+from pathlib import Path
+from imutils.video import FileVideoStream, FPS
+from VideoShow import VideoShow
+from util import log_timing_info, anonymize_roi
+from alive_progress import alive_bar
+
+show_video = True
+default_frame_width = 1280
+fvs_queue_size = 64
+kernel_size = (20, 20)
+device = 'cuda:0'
+use_yolo = False
+resize_video = False
+parser = argparse.ArgumentParser()
+parser.add_argument("path", nargs="?", type=Path)
+args = parser.parse_args()
+
+logging.basicConfig(
+    format='%(asctime)s %(message)s',
+    datefmt='%d.%m.%y %H:%M',
+    stream=os.sys.stdout,
+)
+logging.getLogger().setLevel(logging.INFO)
+
+
+def process_file(input_video):
+    datetime = time.strftime("%Y-%m-%d_%H%M")
+    input_video_path = str(input_video.resolve())
+
+    logging.info(f'Processing {input_video} start time {datetime}')
+
+    fvs = FileVideoStream(input_video_path, None, fvs_queue_size).start()
+
+    while not fvs.more():
+        time.sleep(0.1)
+
+    fps = FPS().start()
+    frame = fvs.read()
+
+    assert len(frame.shape) == 3, logging.critical('Frame has invalid shape')
+    frame_height, frame_width, _ = frame.shape
+    assert frame_height > 0, logging.critical('Frame height too low')
+    assert frame_width > 0, logging.critical('Frame width too low')
+    aspect_ratio = frame_width / frame_height
+    frame_count = int(fvs.stream.get(cv2.CAP_PROP_FRAME_COUNT))
+
+    if show_video:
+        video_shower = VideoShow(frame).start()
+
+    target_frame_width = frame_width
+    target_frame_height = frame_height
+
+    if resize_video:
+        target_frame_width = default_frame_width
+        target_frame_height = int(target_frame_width / aspect_ratio)
+
+    logging.info('Original video dimensions %dx%d' % (frame_width,
+                                                      frame_height))
+
+    if resize_video:
+        logging.info('Applying video dimensions %dx%d' % (target_frame_width,
+                                                          target_frame_height))
+
+    yunet_model = cv2.FaceDetectorYN_create(
+        model='models/face_detection_yunet_2022mar.onnx',
+        config='',
+        input_size=[target_frame_width, target_frame_height],
+        score_threshold=0.7,
+        nms_threshold=0.8,
+        top_k=40)
+
+    frames_processed = 0
+    try:
+        with alive_bar(frame_count) as bar:
+            while fvs.running():
+                frame = fvs.read()
+                if frame is None:
+                    fps.update()
+                    bar()
+                    continue
+
+                _, faces = yunet_model.detect(frame)
+                faces = faces if faces is not None else []
+                faces = np.asarray(faces, dtype=np.int16)
+
+                for face in faces:
+                    x1, y1, w, h = face[:4]
+                    x2 = x1 + w
+                    y2 = y1 + h
+
+                    frame = anonymize_roi(frame, x1, y1, x2, y2)
+
+                # write frame to output video file here
+
+                if show_video:
+                    video_shower.frame = frame
+
+                fps.update()
+                frames_processed += 1
+                bar()
+        return True
+    except KeyboardInterrupt:
+        return False
+    finally:
+        fps.stop()
+        fvs.stop()
+        if show_video:
+            video_shower.stop()
+        if frames_processed > 0:
+            log_timing_info(fps, frames_processed)
+
+
+def main():
+    if args.path is None:
+        logging.critical("Missing input video path")
+        raise SystemExit(1)
+    else:
+        input_video = Path(args.path)
+        if not input_video.exists():
+            logging.critical("Input file doesn't exist")
+            raise SystemExit(1)
+    process_file(input_video)
+
+    cv2.destroyAllWindows()
+
+
+if __name__ == '__main__':
+    main()

requirements.txt

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+alive_progress==3.1.2
+imutils==0.5.4
+numpy==1.24.2