清空筛选条件
清空筛选条件

Undefined function or variable 'im'.

1 次查看（过去 30 天）
Hazel Sialongo
Hazel Sialongo 2016-9-24
评论： Image Analyst 2016-9-24
Also I got error for " imM=im>80;" in pushbutton2 function
Code:
% --- Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
[fname path]=uigetfile('*.jpg');
fname=strcat(path,fname);
im=imread(fname);
im=rgb2gray(im);
axes(handles.axes1)
imshow(im);
title('Grayscale Iris Image');
% --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata,handles)
imM=im>80;
axes(handles.axes2)
imshow(imM);
title('Threshold Image');

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2016-9-24
I answered this already in your other question. Basically, see the FAQ http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F to see a variety of ways how you can get "im" into that function.
  3 个评论
显示 1更早的评论
Hazel Sialongo
Hazel Sialongo 2016-9-24
By the way, thank you for helping me solving my first problem.
Image Analyst
Image Analyst 2016-9-24
I guess you didn't want to read the FAQ, or didn't understand it. If you didn't understand it, probably the simplest approach for you is to simply put
global im;
as the first line of every function where you expect to use im. Just be aware that if you change it in any function, it's global so it will change in all functions from that point in time onwards. Functions that have that global line will see im, and functions that don't have that line won't see im.

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Introduction to Installation and Licensing 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by