kornia.filters
==============

.. meta::
   :name: description
   :content: "The Kornia filters module provides various image filtering operations such as blurring, edge detection, and noise reduction. It includes functions for bilateral, Gaussian, motion, median, and unsharp mask filtering, as well as pooling operations for blurring. These operations are designed to be differentiable and can be integrated seamlessly into deep learning pipelines."

.. currentmodule:: kornia.filters

The functions in this sections perform various image filtering operations.

Blurring
--------

.. autofunction:: bilateral_blur
.. autofunction:: blur_pool2d
.. autofunction:: box_blur
.. autofunction:: gaussian_blur2d
.. autofunction:: guided_blur
.. autofunction:: joint_bilateral_blur
.. autofunction:: max_blur_pool2d
.. autofunction:: median_blur
.. autofunction:: motion_blur
.. autofunction:: unsharp_mask

Interactive Demo
~~~~~~~~~~~~~~~~
.. raw:: html

    <gradio-app src="kornia/kornia-image-filtering"></gradio-app>

Visit the `Kornia image filtering demo on the Hugging Face Spaces
<https://huggingface.co/spaces/kornia/kornia-image-filtering>`_.

Edge detection
--------------

.. autofunction:: canny
.. autofunction:: laplacian
.. autofunction:: sobel
.. autofunction:: spatial_gradient
.. autofunction:: spatial_gradient3d


.. autoclass:: Laplacian
.. autoclass:: Sobel
.. autoclass:: Canny
.. autoclass:: SpatialGradient
.. autoclass:: SpatialGradient3d


Interactive Demo
~~~~~~~~~~~~~~~~
.. raw:: html

    <gradio-app src="kornia/edge_detector"></gradio-app>

Visit the `Kornia edge detector demo on the Hugging Face Spaces
<https://huggingface.co/spaces/kornia/edge_detector>`_.

Segmentation
--------------

.. autofunction:: in_range
.. autoclass:: InRange
.. autofunction:: otsu_threshold
.. autoclass:: OtsuThreshold

Filtering API
-------------

.. autofunction:: filter2d
.. autofunction:: filter2d_separable
.. autofunction:: filter3d

Kernels
-------

.. autofunction:: get_gaussian_kernel1d
.. autofunction:: get_gaussian_erf_kernel1d
.. autofunction:: get_gaussian_discrete_kernel1d
.. autofunction:: get_gaussian_kernel2d
.. autofunction:: get_hanning_kernel1d
.. autofunction:: get_hanning_kernel2d
.. autofunction:: get_laplacian_kernel1d
.. autofunction:: get_laplacian_kernel2d
.. autofunction:: get_motion_kernel2d

Module
------

.. autoclass:: BilateralBlur
.. autoclass:: BlurPool2D
.. autoclass:: BoxBlur
.. autoclass:: MaxBlurPool2D
.. autoclass:: MedianBlur
.. autoclass:: GaussianBlur2d
.. autoclass:: GuidedBlur
.. autoclass:: JointBilateralBlur
.. autoclass:: MotionBlur
.. autoclass:: UnsharpMask