How to load image through dialog box in GUI creation?

Hello,

I've been working on my bachelors work and got stuck at GUI creation. After loading an image to my GUI, I want to proceed with an image segmentation and analysis. But I keep recieving an error

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Index exceeds matrix dimensions.

Error in rozhrani>segmentation_button (line 87) model_RG(:,:,2)= A (:,:,2);

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in rozhrani (line 42) gui_mainfcn(gui_State, varargin{:});

Error in @(hObject,eventdata)rozhrani('segmentation_button',hObject,eventdata,guidata(hObject))

Error while evaluating UIControl Callback

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Program works fine when Iam loading the image manualy through imread('image.jpg'). But after using a dialog box I immediately end up with the error.

I've already tried all I could find on the internet and also in some matlab guides, but nothing worked. I would be really glad if someone could help me to solve this. Down below I will include an example of my code.

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function LoadImageButton_Callback(hObject, eventdata, handles)

image=uigetfile('*.jpg*')

axes(handles.axes2)

imshow(image)

handles.image=image;

guidata(hObject,handles);

function segmentation_button(hObject, eventdata, handles)

A=handles.image

axes(handles.axes2)

[r s k]=size(A);

model_RG(:,:,1)= A (:,:,1);

model_RG(:,:,2)= A (:,:,2);

model_RG(:,:,3)= zeros (r,s);

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This is the part of the code Iam getting error at.

I thank everyone who will try at least helping me out.

Answer 1

[Jakub Slonka]

For anyone having the same problem. I have solved this issue by loading the file name in a variable at first and then loading the image using the file name with command imread('image').. I will include the code I used down below.

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[fileName,filePath] = uigetfile('*', 'Select data file', '.');

if filePath==0, error('None selected!'); end

image = imread( fullfile(filePath,fileName) );

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Now it works perfectly.