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function [ res ] = myradon(img)
%% Padding
center=floor(size(img)/2)+1;
padsize=sqrt(size(img,1)^2+size(img,2)^2);
padsize=2*floor(padsize/2)+1;
padcenter=[ceil(padsize/2),ceil(padsize/2)];
padimg=zeros(padsize);
padimg(padcenter(1)-center(1):padcenter(1)+center(1),...
    padcenter(2)-center(2):padcenter(2)+center(2))...
    =img(1:2*center+1,1:2*center+1);

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import pip
from subprocess import call

for dist in pip.get_installed_distributions():
    call("pip install --upgrade " + dist.project_name, shell=True)

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/*
Raspberry Pi SDL2 image test with gradient and boundry. 
- use keyboard buttons to change frames
- press F4 to exit
- in the boundaries frame, the entire boundry (white) should be visible and as outside as possible 
    to ensure overscan settings is optimal
- in the boundaries frame, the central rectangle should be a perfect square
- in the next frame, the circle should be perfect circle to ensure proper aspect ratio

To test:

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Reddit post (Archived)

Table of Content

• What to expect?
  • Some TLDR about the idea behind
• Prerequisites
  • Hardware
  • System & Software
• Update: Attention for MUXless laptop