Program on digital processing of thoracic x-ray images

I have to make a code that allows me to calculate the RCT, this is the quocient between the width of the heart and the width of the lungs. I am provided with a briefcase that has several images of separate hearts and lungs. These images are identified with the patient ID and structure (heart ou lungs). I also already have a function that allows me to calculate the width and the position of heart or lungs, depends on the image chosen. However, there are patients who only have one of the tests, for exemple, only lungs or only hearts. I think I have to creat an "if" cycle, so that if the patient only has one of the tests, issue an error message, if the patient has both exams calculate the width for each image and then the quotient between them. But I do not know how to do it. If you can help me, I'd appreciate it. Thank you very much.

P.S: I can not use the native Matlab functions

Answer 1

[Image Analyst]

If you cannot use MATLAB, then I'm afraid we cannot help. This is a forum for helping people with their MATLAB programming.

What can be programmed "without any built-in functions" ? - MATLAB Answers - MATLAB Central

% Call your custom-written functions depending on what kind of tests
% this particular patient had performed.
if patientHadHeartTestPerformed % For example, get this flag from your table or database.
    heartResults = ProcessImageForHeart(yourImage);
end
if patientHadLungTestPerformed
    lungResults = ProcessImageForLungs(yourImage);
end

[Maria Vilas Boas]

I have to make a code in Matlab, but I am not sure what function can I use.

[Maria Vilas Boas]

I can use some of the funtions, but not all of them.

[Image Analyst]

You haven't yet said WHY you have this restriction that prevents you from doing the taks most efficiently. If it's homework, then ask your professor what functions are allowed and what functions are banned, and how much help or code you're able to get from other people.

[Maria Vilas Boas]

My teacher gave me a list of functions I can use. However the list has reticence, so I can use a few more. The list he gave me is this one:

clear, clc, close, dir, xlsread, xlswrite, imread, imwrite, length, isempty, size, zeros, ones, eye, double, uint8, uint16, str2num, num2str, figure, subplot, plot, imshow, histogram, title, xlabel, ylabel, ginput, input, disp, fprintf, inputdlg, questdlg, listdlg, strcmp, erase, try, catch, exist, inpolygon, readtable, table2struct, creatMask, imbinarize, regionfill, varargin, varargout, isa, imhist, isfile, datetime, errordlg, pause, cell2mat, menu, im2uint16, break, "for", "if", "and", isnan, return, warning,...

[Image Analyst]

OK, I think my original answer stands:

% Call your custom-written functions depending on what kind of tests
% this particular patient had performed.
if patientHadHeartTestPerformed % For example, get this flag from your table or database.
    heartResults = ProcessImageForHeart(yourImage);
end
if patientHadLungTestPerformed
    lungResults = ProcessImageForLungs(yourImage);
end

You said "I also already have a function that allows me to calculate the width and the position of heart or lungs" so you would just use that function in place of my "ProcessImageForHeart" or "ProcessImageForLungs" function. Just make sure your function doesn't use any of the banned functions. You should ask your professor to review your code just to make sure.