Request user input and using that ans for my functions?

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Gee Cheng Mun
Gee Cheng Mun 2016-1-15
回答： Stephen23 2016-1-15
How can I use the user's input and convert it to a numerical value to be used in my remaining codes?
prompt=('Enter a threshold value to convert the grayscale image to black and white: ');
dlg_title=('Threshold level value');
num_lines=1;
defaultans={'0.5'};
answer=inputdlg(prompt,dlg_title,num_lines,defaultans);

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采纳的回答

Stephen23
Stephen23 2016-1-15
>> val = str2double(answer{1})
val =
3

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