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is it possible to make an image in GUI matlab which is not predefine but define by user input?

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misbah 0332 2015-11-29

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编辑： misbah 0332 2015-12-6

采纳的回答： Walter Roberson

is it possible to make an image in GUI matlab which is not predefine but define by user input?

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Walter Roberson 2015-11-29

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n = input('how big a square do you want?');
v = input('how bright do you want, 0-255');
MyImage = zeros(n,n,'uint8');
MyImage(:) = v;
image(MyImage);
colormap(gray(256))

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Walter Roberson 2015-11-29

http://www.mathworks.com/help/matlab/ref/image-properties.html ButtonDownFcn callback, together with get(gcf,'CurrentPoint')

Or use ginput(). Or datacursormode

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