i try to use im2bw function on indexed image, but octave produce a strange
error:
octave:8> bm1 = im2bw (x,double(m)/255,0.5)
error: im2bw: threshold value must be scalar
error: evaluating if command near line 54, column 3
error: called from `im2bw' in file
`/usr/share/octave/packages/image-1.0.6/im2bw.m'
error: evaluating assignment expression near line 8, column 5
i write a patch which fix this error.
--------------- im2bw.patch ---------------
--- im2bw.m--old 2009-03-12 19:03:47.000000000 +0600
+++ im2bw.m 2009-03-12 19:13:25.000000000 +0600
@@ -49,8 +49,9 @@
else
error ("im2bw: first input argument must be an image");
endif
-
+
## Do the thresholding
+ a=t;
if (isscalar (a))
if (a < 0 || a > 1)
error("im2bw: threshold must be in the interval [0, 1]");
--------------- im2bw.patch end here ---------------
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