Imellipse ROI not resizing in MATLAB GUIDE (2017b)

조회 수: 1 (최근 30일)
Pawel Tokarczuk
Pawel Tokarczuk 2019년 11월 22일
댓글: Jayant 2021년 11월 21일
I want to select a circular ROI in a set of image axes in a GUIDE GUI.
The following test code works as expected:
%% Clear the workspace
clear all
close all
clc
fclose('all');
%% Read a standard test image and display it
x = imread('pout.tif');
hf = figure;
ha = axes(hf);
imshow(x);
%% Initialise a circular ROI, allow it to be moved and re-sized, then save the image masked by the selected ROI
x0 = 40;
y0 = 40;
wd = 60;
ht = 60;
Start = [ x0, y0, wd, ht ];
he = imellipse(ha, Start);
setResizable(he, true);
setFixedAspectRatioMode(he, true);
he.Deletable = false;
Venue = wait(he);
BW = createMask(he);
x(~BW) = 0;
imwrite(x, fullfile(pwd, 'ROI.png'));
delete(he);
delete(ha);
delete(hf);
I get the result:
However, the ROI remains fixed at its original size if I attempt the same thing in my GUIDE project. I can move it and double-click to finish, but although there are 4 visible grab handles (NE, NW, SE, SW), I can't resize the circle. The only material change is:
HE = imellipse(handles.ImageDisplayAxes, Start);
I am using 2017b under W10 on a well-specified Dell Precision workstation. Please advise: it is so odd that stepping into GUIDE causes this very simple code to misbehave.

채택된 답변

Pawel Tokarczuk
Pawel Tokarczuk 2019년 11월 25일
편집: Pawel Tokarczuk 2019년 11월 27일
To answer my own question: the solution is to use MATLAB 2015aSP1 rather than 2017b.
This is not the first time that problems with regions of interest (polygons, ellipses) in GUIDE have been resolved in this way.
So, case closed. I shall leave the question available for others to find.
  댓글 수: 1
Jayant
Jayant 2021년 11월 21일
For me with same case, in matlab 19a, for one GUI it is behaving exactly what i want. But for 2nd GUI, strange but ellipse not resizing. Everything is exactly same, copy paste, but still not resizing imellipse...

댓글을 달려면 로그인하십시오.

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Read, Write, and Modify Image에 대해 자세히 알아보기

제품


릴리스

R2017b

Community Treasure Hunt

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

Start Hunting!

Translated by