[Olena-patches] 3580: Add a small tool to invert b&w in a color image.

* exec/Makefile, * exec/bw_negate_in_color.cc: new tool. --- milena/sandbox/ChangeLog | 7 ++++ milena/sandbox/exec/Makefile | 7 ++++ milena/sandbox/exec/bw_negate_in_color.cc | 46 +++++++++++++++++++++++++++++ 3 files changed, 60 insertions(+), 0 deletions(-) create mode 100644 milena/sandbox/exec/Makefile create mode 100644 milena/sandbox/exec/bw_negate_in_color.cc diff --git a/milena/sandbox/ChangeLog b/milena/sandbox/ChangeLog index 1290810..11b814e 100644 --- a/milena/sandbox/ChangeLog +++ b/milena/sandbox/ChangeLog @@ -1,5 +1,12 @@ 2009-03-25 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Add a small tool to invert b&w in a color image. + + * exec/Makefile, + * exec/bw_negate_in_color.cc: new tool. + +2009-03-25 Guillaume Lazzara &lt;z(a)lrde.epita.fr&gt; + Update Scribo's code. * scribo/Makefile: add a new target. diff --git a/milena/sandbox/exec/Makefile b/milena/sandbox/exec/Makefile new file mode 100644 index 0000000..050d9cd --- /dev/null +++ b/milena/sandbox/exec/Makefile @@ -0,0 +1,7 @@ +TARGET = \ + bw_negate_in_color + +.cc: + g++ -I../../ -O1 -DNDEBUG $< -o $@ + +all: $(TARGET) diff --git a/milena/sandbox/exec/bw_negate_in_color.cc b/milena/sandbox/exec/bw_negate_in_color.cc new file mode 100644 index 0000000..2c69f75 --- /dev/null +++ b/milena/sandbox/exec/bw_negate_in_color.cc @@ -0,0 +1,46 @@ +// +// Invert black and white in a color image. +// + +#include <mln/essential/2d.hh> + +namespace mln +{ + + struct bw_negate_in_color + : Function_v2v<bw_negate_in_color> + { + typedef value::rgb8 result; + + value::rgb8 operator()(const value::rgb8& v) const + { + if (v == literal::white) + return literal::black; + else if (v == literal::black) + return literal::white; + else + return v; + } + + }; + +} + + +int main(int argc, char *argv[]) +{ + using namespace mln; + + if (argc < 3) + { + std::cout << "Usage: " << argv[0] << " <input.ppm> <out.ppm>" + << std::endl; + return 1; + } + + image2d<value::rgb8> input; + io::ppm::load(input, argv[1]); + + bw_negate_in_color f; + io::ppm::save(level::transform(input, f), argv[2]); +} -- 1.5.6.5