After performing processing I want to calculate the percentage of white pixels between this images after the change.
I'm doing this: var = (int2str(nnz(Img2)) / int2str(nnz(Img1))) * 100;
but it returns as result ]
What's the problem ?
+1
A:
The function INT2STR is only needed to convert an integer value to a string (usually for the purpose of displaying it). If you just want the numerical value, leave that out:
var = 100*nnz(Img2)/nnz(Img1);
If you now want to turn var into a string value, you can use NUM2STR (since var is likely not going to be an integer value any more):
varString = num2str(var);
gnovice
2010-05-21 17:48:42
It's giving me: Warning: Out of range or non-integer values truncated during conversionto character.When I use it in this case : title(['Percentage : ' 100 * nnz(Img4) / nnz(image) ]);
dotNET
2010-05-21 17:53:05
@AZIRAR: First, you need to do `num2str(100 * nnz(Img4) / nnz(image))` to convert the number to a string. Second, I would avoid using `image` as a variable name, since there is already a built-in function called IMAGE.
gnovice
2010-05-21 17:58:45
Thanks it's working.
dotNET
2010-05-21 18:12:57