* Implement Sobel and Scharr operators
This commit adds Sobel and Scharr
operators with support for 0th and 1st
degrees with other degrees planned for
later
* Migrate and fix Harris example
Generate Harris entries now uses
signed image view.
The Harris corner detector example
now uses the Scharr filter generator
and convolve_2d to reduce amount
of code needed.
* Fix and migrate Hessian example
The Hessian example now uses signed
image views and uses newly added kernel
generators to compute gradients
* Fix Harris and Hessian tests
The tests broke due to migration to
signed views in algorithms, but tests
were not adjusted
* Fix Jamfile for example/sobel_scharr.cpp
* Cosmetic changes
* Commented out fail tests
* Fixed pixel16 used in image16s
In Harris and Hessian tests, unsigned
pixel values was used to construct
signed image, which was causing
appveyor to error out.
* Reenable failing targets
* Unify kernel generator interface
This commit makes all kernel
generator functions to return kernel_2d
and adapts dependant threshold
function to use the new interface
* Migrate Hessian and Harris tests
Migrate Hessian and Harris tests to new
interface for kernel generators
* Migrate Harris and Hessian examples
Harris and Hessian examples now use
new interface for kernel generation
* Migrate simple_kernels tests
simple_kernels are now using kernel_2d
interface
* Add missing return
Normalized mean generation had missing
return at the end of the function
* Adapt code to namespace move
This commit reacts to kernel_2d,
convolve_2d being moved to
namespace detail
* Hessian plain determinant
This commit partially implements
Hessian corner detector, but only
uses determinant as Hessian response
* Implement full Hessian corner detector
This commit complements last one
by summing in a window and applying
det - k * trace * trace formula to
final Hessian response
* Add docs and make code align with docs
This commit adds docs to new functions,
and makes function and variable names
align with docs to not confuse readers
* Use determinant as response function
A-KAZE uses only determinant in it's
response, and since for now Hessian
is only a mean to advance A-KAZE
implementation, response function is
adjusted to use only determinant
* Create simple test for Hessian detector
This commit adds an s at the end of
function name to make it uniform with
another detector, and adds a simple
test for sanity check
* Improve documentations for d params
dx and similar naming seems to be
confusing, improved documentation
to explain the naming convention
* Address minor comments about style
* Address type based issues
Mostly changes to constness and
integral types, with small cosmetic
changes mixed in
* Fix typo and address review comment
Fixes typo in call for Hessian and
addresses a review comment about
replacing multiple exact indexing
calls to one with a reference
* Reorder includes in Hessian example
* Address review comments
Add literature reference to luminosity
computation, and perform some cosmetic
changes.
