- improved clipping

- matte is clipped matte white git-svn-id: http://moon:8086/svn/matlab/trunk@150 801c6759-fa7c-4059-a304-17956f83a07c
2020-10-07 19:50:13 +00:00
parent 58b94067b1
commit 130f83a27f
3 changed files with 8 additions and 12 deletions
@@ -24,9 +24,7 @@
 ## Created: 2020-10-04

 function y = clip_black (x, thresh, k)
-ind = find (x >= thresh);

-y = x/k;
-y(ind) = thresh/k + (x(ind)-thresh)*(1+thresh);
+y = 1 - min(1, exp(-k*max(0,((1-thresh)-(1-x)))));

 endfunction