diff options
Diffstat (limited to 'ml/dlib/dlib/image_transforms/thresholding_abstract.h')
| -rw-r--r-- | ml/dlib/dlib/image_transforms/thresholding_abstract.h | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/ml/dlib/dlib/image_transforms/thresholding_abstract.h b/ml/dlib/dlib/image_transforms/thresholding_abstract.h deleted file mode 100644 index e7c1e8826..000000000 --- a/ml/dlib/dlib/image_transforms/thresholding_abstract.h +++ /dev/null @@ -1,139 +0,0 @@ -// Copyright (C) 2006 Davis E. King (davis@dlib.net) -// License: Boost Software License See LICENSE.txt for the full license. -#undef DLIB_THRESHOLDINg_ABSTRACT_ -#ifdef DLIB_THRESHOLDINg_ABSTRACT_ - -#include "../pixel.h" - -namespace dlib -{ - -// ---------------------------------------------------------------------------------------- - - const unsigned char on_pixel = 255; - const unsigned char off_pixel = 0; - -// ---------------------------------------------------------------------------------------- - - template < - typename in_image_type, - typename out_image_type - > - void threshold_image ( - const in_image_type& in_img, - out_image_type& out_img, - typename pixel_traits<typename image_traits<in_image_type>::pixel_type>::basic_pixel_type thresh - ); - /*! - requires - - in_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - out_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::grayscale == true - - pixel_traits<typename image_traits<in_image_type>::pixel_type>::has_alpha == false - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::has_alpha == false - ensures - - #out_img == the thresholded version of in_img (in_img is converted to a grayscale - intensity image if it is color). Pixels in in_img with grayscale values >= thresh - have an output value of on_pixel and all others have a value of off_pixel. - - #out_img.nc() == in_img.nc() - - #out_img.nr() == in_img.nr() - !*/ - - template < - typename image_type - > - void threshold_image ( - image_type& img, - typename pixel_traits<typename image_traits<image_type>::pixel_type>::basic_pixel_type thresh - ); - /*! - requires - - it is valid to call threshold_image(img,img,thresh); - ensures - - calls threshold_image(img,img,thresh); - !*/ - -// ---------------------------------------------------------------------------------------- - - template < - typename in_image_type, - typename out_image_type - > - void auto_threshold_image ( - const in_image_type& in_img, - out_image_type& out_img - ); - /*! - requires - - in_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - out_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - pixel_traits<typename image_traits<in_image_type>::pixel_type>::max() <= 65535 - - pixel_traits<typename image_traits<in_image_type>::pixel_type>::has_alpha == false - - pixel_traits<typename image_traits<in_image_type>::pixel_type>::is_unsigned == true - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::grayscale == true - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::has_alpha == false - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::is_unsigned == true - ensures - - #out_img == the thresholded version of in_img (in_img is converted to a grayscale - intensity image if it is color). Pixels in in_img with grayscale values >= thresh - have an output value of on_pixel and all others have a value of off_pixel. - - The thresh value used is determined by performing a k-means clustering - on the input image histogram with a k of 2. The point between the two - means found is used as the thresh value. - - #out_img.nc() == in_img.nc() - - #out_img.nr() == in_img.nr() - !*/ - - template < - typename image_type - > - void auto_threshold_image ( - image_type& img - ); - /*! - requires - - it is valid to call auto_threshold_image(img,img); - ensures - - calls auto_threshold_image(img,img); - !*/ - -// ---------------------------------------------------------------------------------------- - - template < - typename in_image_type, - typename out_image_type - > - void hysteresis_threshold ( - const in_image_type& in_img, - out_image_type& out_img, - typename pixel_traits<typename image_traits<in_image_type>::pixel_type>::basic_pixel_type lower_thresh, - typename pixel_traits<typename image_traits<in_image_type>::pixel_type>::basic_pixel_type upper_thresh - ); - /*! - requires - - in_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - out_image_type == is an implementation of array2d/array2d_kernel_abstract.h - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::grayscale == true - - pixel_traits<typename image_traits<in_image_type>::pixel_type>::has_alpha == false - - pixel_traits<typename image_traits<out_image_type>::pixel_type>::has_alpha == false - - lower_thresh <= upper_thresh - - is_same_object(in_img, out_img) == false - ensures - - #out_img == the hysteresis thresholded version of in_img (in_img is converted to a - grayscale intensity image if it is color). Pixels in in_img with grayscale - values >= upper_thresh have an output value of on_pixel and all others have a - value of off_pixel unless they are >= lower_thresh and are connected to a pixel - with a value >= upper_thresh, in which case they have a value of on_pixel. Here - pixels are connected if there is a path between them composed of pixels that - would receive an output of on_pixel. - - #out_img.nc() == in_img.nc() - - #out_img.nr() == in_img.nr() - !*/ - -// ---------------------------------------------------------------------------------------- - -} - -#endif // DLIB_THRESHOLDINg_ABSTRACT_ - - |