how to detect oval shape

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Abdul
Abdul 2012 年 1 月 1 日
i want to detect oval shape only in image. how can i do this using matlab in easy way. http://i1108.photobucket.com/albums/h404/abdulhadi3/ConferenceSurveyForm.png

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Walter Roberson
Walter Roberson 2012 年 1 月 1 日
Probably much like the code Chandra provided you for detecting squares, except changing the arguments to the rectangle() call a bit. The rectangle() call is able to draw ovals if you give it the proper arguments. regionprops() can tell you the major and minor axes of the object.

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