Insert Shape and Inserttext in same Image

Question

Adrian Pielmeier 2018-6-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/405202-insert-shape-and-inserttext-in-same-image

评论： Walter Roberson 2018-6-12

Hello

how can i display my circle and a text in the same Image using imshow ? This is my Code. But it doesnt really work. I only get one of both but not Text and Shape in the Same figure/ image:

%Image 
I = imread ('bonds_image.jpg');
%Draw circle with a border line width of 5
RGB = insertShape ( I , 'circle', [527 626 20] , 'LineWidth' , 5 , 'Color' , 'red');
imshow (RGB);
%Insert Bond Text
text_str =  'Bond 1   Draht 38';
position = [532 26];
RGB_text = insertText (I, position, text_str, 'FontSize', 18, 'BoxColor', 'red', 'TextColor', 'black');
imshow (RGB_text);

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Answer 1

Guillaume 2018-6-12

3
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https://ww2.mathworks.cn/matlabcentral/answers/405202-insert-shape-and-inserttext-in-same-image#answer_324289

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All functions in matlab work the same way, they never modify the input. Instead they return a copy of the input with the required modifications. Hence, when you call insertShape or insertText, your I is never changed. The inserted text or shape is only visible in the returned image. Thus you need to pass that returned image to the next insertXXX to insert both:

I = imread ('bonds_image.jpg');
I_with_circle =  insertShape(I , 'circle', [527 626 20] , 'LineWidth' , 5 , 'Color' , 'red');
I_with_circle_and_text =  insertText(I_with_circle, [532, 26], 'Bond 1 Draht 38', 'FontSize', 18, 'BoxColor', 'red', 'TextColor', 'black');
imshow(I_with_circle_and_text);