Initial commit

.gitignore

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+.idea/
+
+### Python template
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# 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
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__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/
+

deweave/__init__.py

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+__version__ = '0.1.0'

deweave/__main__.py

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+import sys
+import numpy as np
+import cv2 as cv
+import scipy.fftpack as fft
+from pathlib import Path
+from matplotlib import pyplot as plt
+
+plt.rcParams.update(
+    {
+        "figure.figsize": (7, 7),
+        "figure.dpi": 150,
+        "font.family": "serif",
+    }
+)
+
+
+def main(image_file: str | Path):
+    img = cv.imread(str(Path(image_file).resolve()))
+    img = cv.cvtColor(img, cv.COLOR_BGR2GRAY)
+    img = (img / img.max()).astype("float32")
+    fig = plt.figure(figsize=(7 * 2, 7))
+
+    ax = fig.add_subplot(221)
+    ax.imshow(img, "gray")
+    ax.set_title("image")
+    ax.axis("off")
+
+    ax = fig.add_subplot(222)
+    img_fft = fft.fft2(img)
+    power = np.log(fft.fftshift(abs(img_fft)))
+    ax.imshow(power, "gray")
+    ax.set_title("image FT")
+    ax.axis("off")
+
+    ax = fig.add_subplot(223)
+    mask = np.zeros_like(img, dtype="uint8")
+    mask[371:434, 1256:1326] = 1
+    mask[456:474, 1327:1385] = 1
+    mask[486:523, 1434:1491] = 1
+    mask[605:644, 1333:1400] = 1
+    ax.imshow(mask, "gray")
+    ax.set_title("mask")
+    ax.axis("off")
+
+    ax = fig.add_subplot(224)
+    mask_inverse = np.logical_not(mask).astype("uint8")
+    clean = fft.fftshift(img_fft) * mask_inverse
+    clean = fft.ifft2(clean)
+    clean = abs(clean)
+    clean = (clean / clean.max()).astype("float32")
+    ax.imshow(clean, "gray")
+    plt.tight_layout()
+    plt.show()
+
+
+if __name__ == "__main__":
+    main(sys.argv[1])