What should I do?-Array indices must be positive integers or logical values.

1 次查看（过去 30 天）
Worrakarn Panyaboon
评论： Worrakarn Panyaboon 2021-8-26
My code
clc
clear
close all
a=imread('Screenshot_20210628.jpg');
g =rgb2gray(a);
arr=zeros(1,256);
[x,y,z]=size(g);
for i=1:x
for j=1:y
m=g(i,j);
arr(m)=arr(m)+1;
end
end
stem(arr);
Array indices must be positive integers or logical values.
Error in line 11
arr(m)=arr(m)+1;

请先登录，再回答此问题。

采纳的回答

Wan Ji
Wan Ji 2021-8-26
Hi,
g(i,j) may be zero, then m becomes zero. change it like this
clc
clear
close all
a=imread('Screenshot_20210628.jpg');
g =rgb2gray(a);
arr=zeros(1,256);
[x,y,z]=size(g);
for i=1:x
for j=1:y
m=g(i,j)+1;
arr(m)=arr(m)+1;
end
end
stem(arr);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Graphics Object Programming 的更多信息

标签

产品


版本

R2021a

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by