display a 0 value in a string

Am making a face counter , my main problem is that whe it dosent detect a face, matlab dosent print a '0' value , on the command box just dosent apear anything unless it detects a face.
Am ussing the following code.
n= size (bbox,1);
str_n= num2str(n);
str= strcat( 'number of faces are ', str_n);
display(str);

3 个评论

How exactly are you detecting a face? by the number of rows of bbox?
yes, the bbox is the bounding box & 1 represents the # of rows in bounding box
We would probably need to see the surrounding code to see if possibly that code is not executed in that situation.
By the way, I recommend you have a look at fprintf

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