How to dispaly the value in imshow

Question

Kwanghun Choi 2017-12-12

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https://ww2.mathworks.cn/matlabcentral/answers/372473-how-to-dispaly-the-value-in-imshow

编辑： Chris Perkins 2017-12-14

采纳的回答： Chris Perkins

I make code for inserting elevation value into pixel on contour line

Red line : not inserted

yellow point : Selected point to insert elevation

violet line : already inserted<-automatically when I insert elevation into yellow point

problem is I forget the value easily. So I want to display the value of violet line. I use imshow to display that image. How can I add displaying value of pixel on that image??

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Answer 1

Chris Perkins 2017-12-14

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编辑：Chris Perkins 2017-12-14

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Hi Kwanghun,

You can use "annotation" to place text on your figure.

Here is an example:

% Just setting up a sample image, your image would replace this section
>> figure
>> imshow('peppers.png');
% You can set this to be any value you would like, 
% depending on how your violet line value is represented in your code
>> valueOfVioletLine = 27.3;
% Making the Annotation
>> annotation('textbox',[.2 .2 .3 .3],'String',valueOfVioletLine,'LineStyle','none')