OrgLion-ML
/
dlib
mirror of https://github.com/davisking/dlib.git
1
0
Fork 0
Code Issues Releases Wiki Activity

Added use_relative_feature_weights() and use_uniform_feature_weights() 

functions to make it easy to configure image scanners that use the hashed_feature_image.
This commit is contained in:
Davis King 2013-08-06 00:31:58 -04:00
parent 615b3cf6a0
commit 4b29dec604
2 changed files with 68 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
dlib/image_processing/setup_hashed_features.h
View File

@ -24,6 +24,36 @@ namespace dlib
): error(a) {}
};
// ----------------------------------------------------------------------------------------
template <
typename image_scanner
>
void use_uniform_feature_weights (
image_scanner& scanner
)
{
typename image_scanner::feature_extractor_type fe;
fe.copy_configuration(scanner.get_feature_extractor());
fe.use_uniform_feature_weights();
scanner.copy_configuration(fe);
}
// ----------------------------------------------------------------------------------------
template <
typename image_scanner
>
void use_relative_feature_weights (
image_scanner& scanner
)
{
typename image_scanner::feature_extractor_type fe;
fe.copy_configuration(scanner.get_feature_extractor());
fe.use_relative_feature_weights();
scanner.copy_configuration(fe);
}
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// stuff for scan_image_pyramid
@ -66,6 +96,7 @@ namespace dlib
projection_hash phash = create_random_projection_hash(samps, bits);
feature_image<feature_extractor, projection_hash> hfe;
hfe.copy_configuration(scanner.get_feature_extractor());
hfe.set_hash(phash);
hfe.copy_configuration(fe);
scanner.copy_configuration(hfe);
@ -143,6 +174,7 @@ namespace dlib
projection_hash phash = create_random_projection_hash(samps, bits);
feature_image<feature_extractor, projection_hash> hfe;
hfe.copy_configuration(scanner.get_feature_extractor());
hfe.set_hash(phash);
hfe.copy_configuration(fe);
scanner.copy_configuration(hfe);

36
dlib/image_processing/setup_hashed_features_abstract.h
View File

@ -22,6 +22,42 @@ namespace dlib
!*/
};
// ----------------------------------------------------------------------------------------
template <
typename image_scanner
>
void use_uniform_feature_weights (
image_scanner& scanner
);
/*!
requires
- image_scanner should be either scan_image_pyramid or scan_image_boxes and
should use the hashed_feature_image as its local feature extractor.
ensures
- #scanner.get_feature_extractor().uses_uniform_feature_weights() == true
(i.e. Make the scanner's feature extractor use the uniform feature weighting
scheme)
!*/
// ----------------------------------------------------------------------------------------
template <
typename image_scanner
>
void use_relative_feature_weights (
image_scanner& scanner
);
/*!
requires
- image_scanner should be either scan_image_pyramid or scan_image_boxes and
should use the hashed_feature_image as its local feature extractor.
ensures
- #scanner.get_feature_extractor().uses_uniform_feature_weights() == false
(i.e. Make the scanner's feature extractor use the relative feature weighting
scheme)
!*/
// ----------------------------------------------------------------------------------------
template <