What is wrong with A = alter(a)?

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Eiman Rana
Eiman Rana 2021-9-19
回答： yanqi liu 2021-11-5
N = 500;
A = zeros(N);
A(20:50, 75:100) = 6;
for i = 1:10
A = alter(A);
figure(1);
imagesc(A);
pause
end
When I run this, it shows me an error Undefined function or variable 'alter'.

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回答（2 个）

Steven Lord
Steven Lord 2021-9-19
Ran in:
which -all alter
'alter' not found.
What function are you trying to call?
From the tag can I assume you're trying to use Computer Vision Toolbox? Looking at the list of functions in that toolbox I don't see one named alter.
  1 个评论
Walter Roberson
Walter Roberson 2021-9-20
I searched all of the .m files for all of the toolboxes that I have (I have most but not all). I was not able to find any function named alter or any class method named alter

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yanqi liu
yanqi liu 2021-11-5
Ran in:
clc; clear all; close all;
N = 500;
A = zeros(N);
A(20:50, 75:100) = 6;
for i = 1
A = alter(A);
figure(1);
imagesc(A);
%pause
end
function A=alter(A)
A = imadjust(A);
end

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