hi everyone i just want to know how to take input from the user that which frame user wants to process from a certain video

i will post the code if someone is not able to understand my question

Answer 1

[Geoff Hayes]

Umair - how do you wish to ask the user which frame she or he wishes to process? You can make the request in the Command Window using input, or by creating an input dialog using inputdlg, or by creating a GUI.

Answer 2

[Image Analyst]

Try this robust snippet that asks the user for an integer (which will be the frame number they want to process). It also handles the case where they don't do as they're told:

% Ask user for an integer number.
defaultValue = 45;
titleBar = 'Enter an integer value';
userPrompt = 'Enter the integer';
caUserInput = inputdlg(userPrompt, titleBar, 1, {num2str(defaultValue)});
if isempty(caUserInput),return,end; % Bail out if they clicked Cancel.
% Round to nearest integer in case they entered a floating point number.
integerValue = round(str2double(cell2mat(caUserInput)));
% Check for a valid integer.
if isnan(integerValue)
    % They didn't enter a number.  
    % They clicked Cancel, or entered a character, symbols, or something else not allowed.
    integerValue = defaultValue;
    message = sprintf('I said it had to be an integer.\nI will use %d and continue.', integerValue);
    uiwait(warndlg(message));
end