Extract values from a fig file?

Hi, I have a file like "Example.fig" that contains a picture

and I want to extract the values of each pixel and put them in a matrix form so I can work with them

What can I do?

Answer 1

[Star Strider]

Try this —

F = openfig('Example.fig');                             % Load File & Display Contents

Ax = gca;                                               % Get Axis Handle
Fmtx = Ax.Children.CData                                % Get Image Data

Fmtx = 15×15

0.0851 0.0864 0.0822 0.0839 0.0864 0.0862 0.0861 0.0856 0.0849 0.0832 0.0864 0.0823 0.0807 0.0838 0.0772 0.0798 0.0802 0.0836 0.0853 0.0893 0.0905 0.0854 0.0840 0.0849 0.0873 0.0873 0.0827 0.0812 0.0832 0.0807 0.0817 0.0797 0.0840 0.0944 0.1072 0.1059 0.0898 0.0897 0.0885 0.1039 0.1067 0.0885 0.0833 0.0800 0.0836 0.0829 0.0847 0.0847 0.1018 0.1213 0.1168 0.0910 0.0865 0.0894 0.1136 0.1204 0.0982 0.0819 0.0789 0.0803 0.0806 0.0820 0.0830 0.1000 0.1214 0.1198 0.0953 0.0860 0.0931 0.1172 0.1206 0.0995 0.0858 0.0835 0.0790 0.0802 0.0831 0.0833 0.1002 0.1199 0.1165 0.0956 0.0887 0.0947 0.1220 0.1230 0.0983 0.0832 0.0811 0.0801 0.0774 0.0827 0.0854 0.1001 0.1215 0.1168 0.0963 0.0933 0.0989 0.1240 0.1229 0.1021 0.0807 0.0785 0.0804 0.0750 0.0792 0.0802 0.0991 0.1213 0.1218 0.1183 0.1179 0.1190 0.1244 0.1241 0.1115 0.0816 0.0802 0.0801 0.0750 0.0803 0.0815 0.0980 0.1190 0.1192 0.1161 0.1180 0.1216 0.1268 0.1215 0.1138 0.0848 0.0785 0.0777 0.0753 0.0761 0.0797 0.0872 0.0992 0.1037 0.1000 0.0991 0.1024 0.1236 0.1208 0.1072 0.0832 0.0739 0.0741

figure
surf(Fmtx)                                              % Plot Image Data As 'surf'
colormap(turbo)
set(gca, 'YDir','reverse')
view(-30, 60)
title('Recovered Data Matrix')

.

Answer 2

[Vinayak Agrawal]

Hi MementoMori,

According to me these commands will help you get the results

>>s=load('Example.fig','-mat'); %opening the figure

>> values=s.hgS_070000.children(1).children.properties.CData; %storing pixel values

>> fig = imagesc(values); %verifying by plotting the ‘values’ which are our pixel values

You can see the pixel values by double clicking on ‘values’ variable created in your workspace

You can refer to these documents also-

• extracting data series from *.fig file - MATLAB Answers - MATLAB Central (mathworks.com)
• matlab - plot matrices in desired colors - Stack Overflow

Hope it helps!