MATLAB: I’m a beginner at Matlab, I need some help.

and add it in a picture?how to make a blue image?how to make the rectangle its color pink

Best Answer

clear all;

close all;

clc;

figure (1);

i=imread('fabric.png');

imshow(i);

figure (2);

Iind=[2 2 2;2 2 2;2 2 2];

map=[0.5 0.5 0.5;0 0.6 1;1 0 0];

imshow(Iind,map,'InitialMagnification','fit'),

figure (3);

A= gcf;

A.Color = [1 0.4 0.6];

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Read the transperancy map and use it to make the background transparent.

% read small circle
[img, ~, tr] = imread('test.png');
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N = 10000 ;   % can be changed
% x = 1e3:10e6;    % Freq of operation (big vector)
x = linspace(1e3,10e6,N) ;
% y = 3e-3:500e-3;   %resistance in the circuit
y = linspace(3e-3,500e-3,N) ;
a=1e-6; % value that I change every time to get the optimized one
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Best Answer

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MATLAB: I have a transparent .png picture when I add it to the current figure the background of it changes to black!

MATLAB: Plot3 and vector match issue

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