How i can display image from MATLAB code file?

Question

Gytis Raudonius 2016-8-18

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/300049-how-i-can-display-image-from-matlab-code-file

回答： Walter Roberson 2016-8-18

Hey, have problem and hope someone help me. So problem is i cant find info about how i can display image from mat file to GUI. Explain i've crated gui which have two axes, one is upload image from disk and then i upload this image automaticly start my code in mat file. In this file works image processing, and i want display one of image processing images display on axes2.

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Adam 2016-8-18

What have you done so far? It should just be a case of loading from the mat file using the full file path and calling imshow, imagesc or image, giving whichever function you choose the axes handle for axes2 - i.e. handles.axes2 if your GUI is created using GUIDE

Gytis Raudonius 2016-8-18

在 MATLAB Online 中打开

i tried this code but, in axes2 i just got black image

function pushbutton1_Callback(hObject, eventdata, handles)
[filename, pathname] = uigetfile({'*.jpg','*.bmp'},'File Selector');
image1 = imread(strcat(pathname, filename));
axes(handles.axes1);
imshow(image1);
filtravimas(image1);
axes(handles.axes2);
imshow(i);

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Answer 1

Walter Roberson 2016-8-18

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/300049-how-i-can-display-image-from-matlab-code-file#answer_232168

在 MATLAB Online 中打开

imshow(i);

http://www.mathworks.com/help/matlab/ref/i.html

i is equivalent to sqrt(-1)

You did not initialize i, so it is going to have its default value of sqrt(-1) -- unless, that is, filtravimas(image1) does an assignin('caller', 'i', some_value) and you are using R2015a or earlier.