error-creating gui

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Pat
Pat 2012-3-15
I have creating gui and have assigned two pushbuttons for readind an image and for edge detection,
in pushbutton 1 i have coded for reading an image and in pushbutton 2 coded for edge detection,
i read the image and it displays in gui,but when i click 2nd pushbutton ,i get error,undefined variable I and
Error while evaluating uicontrol Callback please help how to correct it
  1 个评论
Jan
Jan 2012-3-15
Please post the original code and a copy of the error message. "I get error, undefined variable" does not contain enough details to allow for an easy and efficient answer.

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回答（1 个）

Sean de Wolski
Sean de Wolski 2012-3-15
  2 个评论
Pat
Pat 2012-3-15
sean i am new to gui ,can u send me the codes plz
Jan
Jan 2012-3-15
The link Sean has posted contains the needed code already. You have asked 137 questions in this forum since September 2011 - I'm sure you have enough Matlab knowhow to copy&paste the lines of code.

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