how to fix these code lines for app designer

2022 12 4
1 个回答
回答已采纳
更新时间：2022 12 5
13 次查看（30 天）

0 个投票

e gaussian and periodic noise this is my code for them and they didnt work how can i fix them plz?
this is the gaussina noise code
a=(app.Image);
noise=imnoise(a,'gaussian');
I=imshow(noise,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2)];
and this the periodic noise code
a=(app.Image);
s=size(a);
[x,y]=meshgrid(1:s(1),1:s(2));
p=sin(x/3+y/5)+1;
noise=(im2double(a)+p/2)/2;
I=imshow(noise,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2)];
i also have this low pass filter also doesnt work how can i fix it
a=(app.Image);
f1=fspecial('average',[5,5]);
I=imshow(f1,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2

3 个评论
显示 1更早的评论 隐藏 1更早的评论

Jan
Jan 2022-12-4
"they didnt work" is not a useful explanation of what the problem is. It is easier to solve an error than to guess, what it is.
jana
jana 2022-12-4
编辑：Jan 2022-12-5
ok so basically what i meant by didnt work is it didnt show the mdifiedimage my app has an axes that shows the before image and that is its code
[filename,pathname] = uigetfile();
app.imageEditField.Value=strcat(pathname,filename);
app.Image=imread(app.imageEditField.Value);
app.Modified= app.Image;
imshow(app.Modified,'parent',app.UIAxes)
and it works and the other n=buttons including the codes i written show the after image and the ones i wrote dont show the after image what can i emmit of add that would make it work
Image Analyst
Image Analyst 2022-12-5
编辑：Image Analyst 2022-12-5
Not sure what that means. Does it now work, or not? Since you accepted my suggested fix, I assume it's all working now. If not, attach your .mlapp file with the paperclip icon.

请先登录，再进行评论。

请先登录，再回答此问题。

 采纳的回答

Image Analyst
Image Analyst 2022-12-4

1 个投票

Instead of
f1=fspecial('average',[5,5]);
I=imshow(f1,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2
try
f1=fspecial('average',[5,5]);
imshow(f1, [], 'parent',app.UIAxes2)
axis('on', 'image')
@jana you've asked 15 questions but have never awarded any of the people who helped you with "reputation points" by clicking the "Accept this answer" link. They'd appreciate it if you did that. 🙂

3 个评论
显示 1更早的评论 隐藏 1更早的评论

jana
jana 2022-12-5
so after i hit the lpf button and the periodic noise one they just show a black screen while i want the lpf to blur the image and that is not what happened ill attach the file below
Image Analyst
Image Analyst 2022-12-5
You had a number of major errors in those functions. I fixed them.
jana
jana 2022-12-5
thank u so much genuienly i cant thank you enough truly last thing though these codes for turning the grayiage to blue and green whats the problem with them a=(app.Image);
green=a;
green(:,:,3)=0
setappdata(0,'filename',green);
setappdata(0,'imrotation',green);
I=imshow(green,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2)];
the blue code
a=(app.Image);
blue=a;
blue(:,:,2)=0
setappdata(0,'filename',blue);
setappdata(0,'imrotation',blue);
I=imshow(blue,'parent',app.UIAxes2,...
'XData',[1 app.UIAxes2.Position(3)],...
'YData',[1 app.UIAxes2.Position(4)]);
app.UIAxes2.XLim=[0 I.XData(2)];
app.UIAxes2.YLim=[0 I.YData(2)];

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Image Preview and Device Configuration 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