* Simple implementation of lanczos scaling
* Simple implementation of lanczos scaling
* Refactor lanczos into separate header
This commit moves the algorithm
into its own header. It also provides
templated interface now, utilizing
a little bit of decltype and declval
to resolve types for lambdas and stuff
* Zero pixel at start of lanczos_at
This commit fixes a possible bug and
fixes some style incosistencies
* Improve documentation for Lanczos
This commit adds documentation which
describes when to use the algorithm,
a brief description of how it is
supposed to work, and some caution
on the quality of the output
* Address style issues and fix warnings
This commit fixes a style issue realted
to namespace declaration and
fixes a warning in added zeroing of
a pixel at start of lanczos
* text-realign function arguments
* fix formatting issues
* Implement handful of sanity tests
This commit introduces a couple of
sanity tests such as black image
scaling to black image, and lanczos
response being 0 at x = 0
* bracket on newline for for loops
* add lanczos scaling to tests
* more precision in lanczos calculation
This commit migrates integral values
to double precision and uses PI
provided by boost.Math. These changes
solve downscaled image being darker
* Simple implementation of lanczos scaling
* Refactor lanczos into separate header
This commit moves the algorithm
into its own header. It also provides
templated interface now, utilizing
a little bit of decltype and declval
to resolve types for lambdas and stuff
* Zero pixel at start of lanczos_at
This commit fixes a possible bug and
fixes some style incosistencies
* Improve documentation for Lanczos
This commit adds documentation which
describes when to use the algorithm,
a brief description of how it is
supposed to work, and some caution
on the quality of the output
* Address style issues and fix warnings
This commit fixes a style issue realted
to namespace declaration and
fixes a warning in added zeroing of
a pixel at start of lanczos
* text-realign function arguments
* fix formatting issues
* Implement handful of sanity tests
This commit introduces a couple of
sanity tests such as black image
scaling to black image, and lanczos
response being 0 at x = 0
* bracket on newline for for loops
* add lanczos scaling to tests
* more precision in lanczos calculation
This commit migrates integral values
to double precision and uses PI
provided by boost.Math. These changes
solve downscaled image being darker
* Add Jamfile for ip test directory
Add Jamfile for image_processing
test directory and build-project
from outer test directory
* Add IP test directory to ci build
This commit adds a line at the end
of .ci/build-and-test.sh to include
image processing tests in CI builds
* Remove redundant lines from Jamfile
Simplify Jamfile at
test/image_processing
* Rewrite range condition
x > -a && x < a exchange with
-a < x && x < a in lanczos
* Add newline at the end of files
* Add math and lexical_cast to get-boost
As math and lexical_cast are used
in lanczos scaling, both were added
to get-boost
* Revert "Add newline at the end of files"
Since Boost.Math.Constants is
overengineered for use case by
requiring Boost.lexical_cast or
a global define, it is removed
This reverts commit 0743ab072ff3455421853697f7f46aee7d22382c.
* Define pi and use in lanczos
Value of pi is moved out into detail
and used by lanczos
* Move image_processing to test/core
* formatting fixes
* Adjust CMakeLists for moved IP tests
This commit removes image_processing as
subdirectory from test/ and adds to
test/core's CMakeLists
* Remove unused from get-boost
Since lanczos scaling no longer uses
boost.math.constants, lexical_cast
has been removed as well
* Downgrade math to transitive dep
This is a stray change left from
my incorrect resetting of the HEAD
on lanczos branch
* Remove unnecessary includes
io includes are not used in lanczos
scaling test, and they break build
* Fix ambiguous overload issue for min
Since width() and height() now return
std::ptrdiff_t, call to std::min needs
a cast. There was also shadowing of
pi declared in detail/math.hpp,
which is also fixed
* Apply mloskot's patch
The patch provided by Mateusz changes
all usages of long int into ptrdiff_t,
which is returned by width() and
height() functions of image_view
* Apply .editorconfig rules
This commit is a simple reformat of
affected files
* Use aliases x_coord_t and y_coord_t
The change converges integer handling
in arguments, using view' type aliases.
View arguments have to come first to
avoid non-deduced context problem.
Also replaced long int with ptrdiff_t
in lanczos, in numeric.hpp file
* Apply alias usage for rest of the code
Some places with ptrdiff_t were
left out from previous commit, so they
are changed in this one. Plus a fix for
max call being ambiguous.
* Replace all literals with casted vars
This commit takes extreme stance of
never using an integer literal due to
problems in ambiguity of deduction of
min and max functions
* Fix unenclosed foreach
During rebase of gsoc2019 onto develop,
I didn't enclose first foreach with
matching endforeach, hence tests failed
