Mask (View)

Include <mln/core/image/view/mask.hpp>

1. auto mask(Image ima, BoolImage m)
   

   1. Makes a view where each pixel is kept if and only if the masked boolean m(p) is true.

   Parameters:

   • ima – Input range

   • mask – Input range

   mln::image2d<int> ima = ...;
   mln::image2d<bool> m = ...;
   auto g = mln::view::mask(ima, m);
   

		ima	mask(ima, mask)
Category	Forward	X	X
	Bidirectional	X	X
	Raw	X
Properties	Writable	X	X
	Accessible	X	X
	Indexable	X	X

Examples

• Set all odd values to 42:

mln::image2d<int> ima = { {0, 1, 2}, {3, 4, 5} };
mln::image2d<bool> m = ima % 2 == 1;
auto g = mln::view::mask(ima, m);
mln::fill(g, 42);
mln::io::imprint(ima);

Outputs:

0  42 2
42 4  42