How to convert the MATLAB code into the Python?

Question

Milind dilipkumar Patel 2018-10-26

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评论： Puma 2024-4-16，13:22

Hello, I have a matlab code for the quantitative differential phase contrast imaging and the code is very big and complicated as well. But the problem is the institute where I am working does not allow to use matlab and they have python and LabVIEW, so I would like to convert the matlab code to python or someone knows how to run the matlab code in python then it also be very helpful.

I have attached the main code.

Thank you.

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Suma K 2023-12-16

can u tell how to convert matlab simulink to python programm

Puma 2024-4-16，13:22

c=math.copysign(y, z) covertir a matalb

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Answer 1

madhan ravi 2018-10-26

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编辑：madhan ravi 2018-10-26

You can use numpy framework which contains matlab libraries.

See cheat sheet , I faced similar situation as you but raged with the cheat sheet, good luck!

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Answer 2

MathWorks Support Team 2022-10-25

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MATLAB provides two-way integration with many programming languages, including Python. The MATLAB Engine API for Python allows you to call MATLAB functions from Python. Similarly, if you have functions and objects in Python, you can call them directly from MATLAB using the Python Interface. Finally, you can build Python packages from MATLAB programs by using MATLAB Compiler SDK™. These packages can be integrated with Python applications and can be shared with desktop users or deployed to web and enterprise systems. To learn more about using MATLAB with Python go here.

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Walter Roberson 2023-9-17

@Daniel

The original poster of the question used the term "problem", rather than a phrasing such as "great thing", so it was not a "feature" to the original poster.

Daniel 2023-9-17

@Walter Roberson - ChatGPT may be useful to help you understand sarcasm as well :)

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Answer 3

Gurubasava Bhure 2021-7-24

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https://ww2.mathworks.cn/matlabcentral/answers/426258-how-to-convert-the-matlab-code-into-the-python#answer_752934

编辑：Walter Roberson 2022-10-26

在 MATLAB Online 中打开

clc()
clear(mstring('all'))
close(mstring('all'))
# Generating the bit pattern with each bit 20 samples long
b = round(rand(1, 30))
pattern = mcat([])
for k in mslice[1:30]:
  if b(1, k) == 0:
      sig = -ones(1, 20)
  else:
      sig = ones(1, 20)
  end
    pattern = mcat([pattern, sig])
end
subplot(4, 1, 1)
plot(pattern)
axis(mcat([-1, 600 - 1.5, 1.5]))
title(mstring('Original Bit Sequence'))
# Generating the pseudo random bit pattern for spreading
d = round(rand(1, 120))
pn_seq = mcat([])
carrier = mcat([])
t = mcat([mslice[0:2 * pi / 4:2 * pi]])# Creating 5 samples for one cosine
for k in mslice[1:120]:
    if d(1, k) == 0:
        sig = -ones(1, 5)
    else:
        sig = ones(1, 5)
    end
    c = cos(t)
    carrier = mcat([carrier, c])
    pn_seq = mcat([pn_seq, sig])
end
# Spreading of sequence
spreaded_sig = pattern *elmul* pn_seq
subplot(4, 1, 2)
plot(spreaded_sig)
axis(mcat([-1, 600 - 1.5, 1.5]))
title(mstring('Spreaded signal'))
# BPSK Modulation of the spreaded signal
bpsk_sig = spreaded_sig *elmul* carrier# Modulating the signal
subplot(4, 1, 3)
plot(bpsk_sig)
axis(mcat([-1, 600 - 1.5, 1.5]))
title(mstring('BPSK Modulated Signal'))
#Plotting the FFT of DSSS signal
y = abs(fft(xcorr(bpsk_sig)))
subplot(4, 1, 4)
plot(y / max(y))
xlabel(mstring('Frequency'))
ylabel(mstring('PSD'))
#Demodulation and Despreading of Received Signal
figure()
rxsig = bpsk_sig *elmul* carrier
demod_sig = mcat([])
for i in mslice[1:600]:
    if rxsig(i) >= 0:
        rxs = 1
    else:
        rxs = -1
    end
    demod_sig = mcat([demod_sig, rxs])
end
subplot(3, 1, 1)
plot(demod_sig)
axis(mcat([-1, 600 - 1.5, 1.5]))
title(mstring('Demodulated Signal'))
despread_sig = demod_sig *elmul* pn_seq
subplot(3, 1, 2)
plot(despread_sig)
axis(mcat([-1, 600 - 1.5, 1.5]))
title(mstring('Despreaded data'))
#Power Spectrum of Despreaded data 
z = 0.5 + 0.5 * despread_sig
y = abs(fft(xcorr(z)))
subplot(3, 1, 3)
plot(y / max(y))
axis(mcat([0, 500, 0, 1.5]))
xlabel(mstring('Frequency'))
ylabel(mstring('PSD'))

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Deepu S S 2022-1-5

Python is one of the easiest high-level programming languages ever created which is as easy as reading and writing English. It was first released in the 1990s by Guido van Rossum and now is been contributed by hundreds of developers worldwide.

Whereas, Matlab is closed source software managed by Mathworks. And most importantly, Python is free, unlike Matlab.

We can get thousands of modules within Python that can be helped to access any kind of API you need in your project. Moreover, you can edit the original source code of modules in Python.

Whereas, in Matlab, this is next to impossible. Also, the support for python by developers all around the world is increasing at an exponential rate.

According to StatisticsTimes, python is the most searched language in the PYPL index1. Also, considering the usage efficiency and support available, it’s already concluded that Python is way more flexible than Matlab.

Matlab is used by many students for their thesis projects and many other tasks. Especially in the field of computing and mathematics, Matlab is considered to be a prominent programming language among all. Moreover, as it supports Object-Oriented Programming and Data Visualization codes, you can easily use it to your advantage. But as the world changes, new programming languages come into the picture. To convert Matlab to python, we have two options, either do it manually or take the help of some tool.

To convert Matlab to python, a tool named SMOP (Small Matlab and Octave to Python Compiler) is used. This tool is capable of understanding basic Matlab code and then parsing it to python. Although there are always limitations to every tool, this tool works best for small-level codes.

In this post, we’ll go through all the available ways to convert Matlab code into python code without any difficulty.

Samuel Gray 2022-5-3

...see?

So it's like other forums in that way, especially like YT forums, but there's no obvious indication of that...

But if you've spent most of your formative years posting on forums that support @ replies, you'd just do that by rote and find that it works. I did find it by typing in @ (for another reason) and as you see if you try that, all sorts of user names will pop up.

So it's dangerous to assume that something is or is not a certain way because quite often it's just a matter of your background and your willingness to experiment and do some research on Google. Some people like that about Life and some don't.

Walter Roberson 2023-11-15

When you are in the editor here, the right hand side has a circled question mark with notation HELP . If you click on that you get documentation about the editor, including

https://www.mathworks.com/matlabcentral/help/rtc#mentions_feature

When you type @, a popup displays the community members already in the Q/A thread. As you keep typing, the list expands to include members not in the thread. A mentioned community member receives a notification when the question/answer/comment is posted. Each mention links the post to the community member's user profile.

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Answer 4

Arthi Raj 2022-3-29

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编辑：Walter Roberson 2022-5-3

在 MATLAB Online 中打开

%clc;
clear;
close all;
% [filename, pathname] = uigetfile('*.jpg', 'CHOOSE A IMAGE');
A=imread('C:\Users\Administrator\Desktop\Mango_Database\RIPE\R22.jpg');
% A=imread('C:\Users\Administrator\Desktop\Mango_Database\UNRIPE\U1.jpg');
% A=imcrop(A);
A=imresize(A,[256 256]);
A=immultiply(A,1.5);
figure;imshow(A);impixelinfo;
ro=size(A,1);
co=size(A,2);
H=0;
for n=1:ro
    for m=1:co
        R=A(n,m,1);
        G=A(n,m,2);
        B=A(n,m,3);
        if(R>180&&G<200&&G>150&&B<100)  
            H=H+1;
        end
    end
end