Filter (View)

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

1. auto filter(Image ima, Predicate pred)
   

   1. Makes a view where each pixel is kept if and only if the predicate pred(ima(p)) is true.

   Parameters:

   • ima – Input range

   • pred – Predicate to apply on pixel values

   mln::image2d<int> ima = ...;
   auto g1 = mln::view::filter(ima, [](int v) { return v > 125; });
   

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

Examples

• Keep all add values:

mln::image2d<int> input = { {0, 1, 2}, {3, 4, 5} };
auto g = mln::view::transform(input, [](int v) { return v % 2 != 0; });
mln::io::imprint(g);

Outputs:

0 1
3 5