I am using regionprops to calculate the mean intensity inside three regions of interest on a a number of matrices.
while again
thisRegion = roipoly;
finalImage = finalImage | thisRegion;
promptMessage = sprintf('Do you want to add another region?');
titleBarCaption = 'Continue?';
buttonText = questdlg(promptMessage, titleBarCaption, 'Yes', 'No', 'Yes');
if strcmpi(buttonText, 'No')
again = false;
end
labeledImage = logical(finalImage);
end
mask = labeledImage;
Y = handles.finishCell;
for i = 1 : length(Y)
thisImage = Y(i);
props = regionprops(mask, thisImage, 'Area', 'MeanIntensity');
allAreas = [props.Area];
allMeans = [props.MeanIntensity];
allIGLs = allAreas .* allMeans;
caIGLs{i} = allIGLs;
end
The last time I tried this code it did not generate an error and then I tried using the GUI again, having run it again and a very long series of errors arose. Matlab also stopped responding to some commands. I restarted Matlab and ran the code again. This time this error occurred:
Error using regionprops>getPropsFromInput (line 1179)
PROPERTY must be a string.
Error in regionprops>ParseInputs (line 1133)
reqStats = getPropsFromInput(startIdxForProp, ...
Error in regionprops (line 154)
[I,requestedStats,officialStats] = ParseInputs(imageSize, varargin{:});
Error in hopefully_the_last_window>pushbutton3_Callback (line 196)
props = regionprops(labeledImage, thisImage, 'Area', 'MeanIntensity');
Error in gui_mainfcn (line 96)
feval(varargin{:});
Error in hopefully_the_last_window (line 42)
gui_mainfcn(gui_State, varargin{:});
Error in
@(hObject,eventdata)hopefully_the_last_window('pushbutton3_Callback',hObject,eventdata,guidata(hObject))
Error while evaluating uicontrol Callback
I am not sure if this is due to the inputs (the logical mask and the cell array) or something else. In the code itself, the variable caIGLs has an attention underline stating that the variable appears to change size on every loop iteration. Consider preallocating for speed.
Each of the matrices in the cell array are the same size so I'm not sure how the final variable caIGLs can change each time.
