Commits on Jan 11, 2020

1. Add wrappers for imagecorruptions library …

   This patch adds wrappers around the functions from
   package
   https://github.com/bethgelab/imagecorruptions.
   The functions in that package were used in some recent
   papers and are added here for convenience.
   The wrappers produce arrays containing values
   identical to the output arrays from the corresponding
   `imagecorruptions` functions when called via the
   `imagecorruptions.corrupt()` (verified via unittests).
   The interfaces of the wrapper functions are identical to the
   `imagecorruptions` functions, with the only difference of
   also supporting `seed` parameters.
   
   * Add module `imgaug.augmenters.imgcorruptlike`.
     The `like` signals that the augmentation functions do
     not *have* to wrap `imagecorruptions` internally.
     They merely have to produce the same outputs.
   * Add the following functions to module
     `imgaug.augmenters.imgcorruptlike`:
       * `apply_gaussian_noise()`
       * `apply_shot_noise()`
       * `apply_impulse_noise()`
       * `apply_speckle_noise()`
       * `apply_gaussian_blur()`
       * `apply_glass_blur()`
         (improved performance over original function)
       * `apply_defocus_blur()`
       * `apply_motion_blur()`
       * `apply_zoom_blur()`
       * `apply_fog()`
       * `apply_snow()`
       * `apply_spatter()`
       * `apply_contrast()`
       * `apply_brightness()`
       * `apply_saturate()`
       * `apply_jpeg_compression()`
       * `apply_pixelate()`
       * `apply_elastic_transform()`
   * Add function
     `imgaug.augmenters.imgcorruptlike.get_corruption_names(subset)`.
     Similar to `imagecorruptions.get_corruption_names(subset)`,
     but returns a tuple
     `(list of corruption method names,
       list of corruption method functions)`,
     instead of only the names.
   * Add the following augmenters to module
     `imgaug.augmenters.imgcorruptlike`:
       * `GaussianNoise`
       * `ShotNoise`
       * `ImpulseNoise`
       * `SpeckleNoise`
       * `GaussianBlur`
       * `GlassBlur`
       * `DefocusBlur`
       * `MotionBlur`
       * `ZoomBlur`
       * `Fog`
       * `Frost`
       * `Snow`
       * `Spatter`
       * `Contrast`
       * `Brightness`
       * `Saturate`
       * `JpegCompression`
       * `Pixelate`
       * `ElasticTransform`
   * Add context `imgaug.random.temporary_numpy_seed()`.

   

   aleju committed Jan 11, 2020
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