I NEED TO MAKE A HEART in a CANVAS

i have a code in MATLAB,

i created a canvas with 3 pages 1000 rows and 1000 columns with a circle in the middle (the size doesnt matter) such:

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

canvas = ones (1000,1000,3,'uint8'); canvas(:,:,1) = 255; canvas(:,:,2) = 0; canvas(:,:,3) = 0;

rad = 260; rows = 500; col = 500; for n = -rad:rad d = round(sqrt(rad^2 - n^2)); canvas (rows-d:rows+d,col+n,:) = 255; end

imshow (canvas)

%%%%%%%%%%%%%%%

I NEED to generate a HEART IN THE MIDDLE INSTEAD OF THE CIRCLE... can someone help me with that please ???

Answer 1

[Image Analyst]

Try this:

% Plots 2 heart-shaped curves.
clc;    % Clear the command window.
close all;  % Close all figures (except those of imtool.)
clear;  % Erase all existing variables.
workspace;  % Make sure the workspace panel is showing.

t = linspace(-pi,pi, 350);
X =       t .* sin(pi * .872*sin(t)./t);
Y = -abs(t) .* cos(pi *      sin(t)./t);
plot(X,Y);
fill(X, Y, 'r');
axis square;
set(gcf, 'Position', get(0,'Screensize'));
title('Happy Valentines Day', 'FontSize', 28);
% axis off;  % Uncomment to turn off tick labels along the bottom and left axes and remove the box.

%------------------------------------------------------------------------------
% Set up figure properties:
% Enlarge figure to full screen.
set(gcf, 'Units', 'Normalized', 'OuterPosition', [0, 0.04, 1, 0.96]);
% Get rid of tool bar and pulldown menus that are along top of figure.
% set(gcf, 'Toolbar', 'none', 'Menu', 'none');
% Give a name to the title bar.
set(gcf, 'Name', 'Demo by ImageAnalyst', 'NumberTitle', 'Off')

%------------------------------------------------------------------------------
% Another method.
% https://blogs.mathworks.com/cleve/2018/02/14/happy-valentines-day/
figure;
ezplot('(x^2+y^2-1)^3 = x^2*y^3', ...
  [-1.5,1.5,-1.2,1.5])
colormap([.5 .2 .2])

[Image Analyst]

tzela's "Answer" moved here since it's a comment to me rather than an answer to the original question:

thanx, but i need a code that will implement it into CANVAS .... IN THE CENTER. thats where im having an issue

[Image Analyst]

So use scale x and y to the desired size and then use poly2mask() to turn it into an image

scale = 100; % Whatever
canvass = poly2mask(scale*x, scale*y, rows, col);

adjust scale as needed.

Answer 2

[tzela yaish]

thanx, but i need a code that will implement it into CANVAS .... IN THE CENTER. thats where im having an issue