Thread Subject: tukey window

hey can anyone guide me to use a tukey window in 2-d??
M working with images so require a 2 dimensional approach..

On Jun 30, 3:40 pm, "manika babbar" <babbar_man...@yahoo.co.in> wrote:
> hey can anyone guide me to use a tukey window in 2-d??
> M working with images so require a 2 dimensional approach..

w=tukeywin(10,0.25)*tukeywin(10,0.25)'

would make your 2d filter, obviously change the window size and other
parameters accordingly.

Do you need halep on appying the filter too or can you do that?

On Jun 30, 5:12 pm, Adam Chapman <adamchapman1...@hotmail.co.uk>
wrote:
> On Jun 30, 3:40 pm, "manika babbar" <babbar_man...@yahoo.co.in> wrote:
>
> > hey can anyone guide me to use a tukey window in 2-d??
> > M working with images so require a 2 dimensional approach..
>
> w=tukeywin(10,0.25)*tukeywin(10,0.25)'
>
> would make your 2d filter, obviously change the window size and other
> parameters accordingly.
>
> Do you need halep on appying the filter too or can you do that?

Here's demo code:

--------------------------------

L=5; %window width
r=0.25; %taper ratio of tukey window

%produce 2d tukey window
w=tukeywin(L,r)*tukeywin(L,r)';

%load and scale image.
im=imread('pout.tif');
im=double(im);
im=im/255;

%plotting
figure
subplot(1,2,1)
imshow(im,[])
title('original')
subplot(1,2,2)
imshow(imfilter(im,w),[])
title('filtered')

----------------------------

Adam Chapman <adamchapman1985@hotmail.co.uk> wrote in message <251c3d67-5c72-484c-953c-dd175a3e441b@c36g2000yqn.googlegroups.com>...
> On Jun 30, 5:12 pm, Adam Chapman <adamchapman1...@hotmail.co.uk>
> wrote:
> > On Jun 30, 3:40 pm, "manika babbar" <babbar_man...@yahoo.co.in> wrote:
> >
> > > hey can anyone guide me to use a tukey window in 2-d??
> > > M working with images so require a 2 dimensional approach..
> >
> > w=tukeywin(10,0.25)*tukeywin(10,0.25)'
> >
> > would make your 2d filter, obviously change the window size and other
> > parameters accordingly.
> >
> > Do you need halep on appying the filter too or can you do that?
>
> Here's demo code:
>
> --------------------------------
>
> L=5; %window width
> r=0.25; %taper ratio of tukey window
>
> %produce 2d tukey window
> w=tukeywin(L,r)*tukeywin(L,r)';
>
> %load and scale image.
> im=imread('pout.tif');
> im=double(im);
> im=im/255;
>
> %plotting
> figure
> subplot(1,2,1)
> imshow(im,[])
> title('original')
> subplot(1,2,2)
> imshow(imfilter(im,w),[])
> title('filtered')
>
> ----------------------------
hey thanks for the assistance..[:)]

On Jun 30, 6:01 pm, "manika babbar" <babbar_man...@yahoo.co.in> wrote:
> Adam Chapman <adamchapman1...@hotmail.co.uk> wrote in message <251c3d67-5c72-484c-953c-dd175a3e4...@c36g2000yqn.googlegroups.com>...
> > On Jun 30, 5:12 pm, Adam Chapman <adamchapman1...@hotmail.co.uk>
> > wrote:
> > > On Jun 30, 3:40 pm, "manika babbar" <babbar_man...@yahoo.co.in> wrote:
>
> > > > hey can anyone guide me to use a tukey window in 2-d??
> > > > M working with images so require a 2 dimensional approach..
>
> > > w=tukeywin(10,0.25)*tukeywin(10,0.25)'
>
> > > would make your 2d filter, obviously change the window size and other
> > > parameters accordingly.
>
> > > Do you need halep on appying the filter too or can you do that?
>
> > Here's demo code:
>
> > --------------------------------
>
> > L=5; %window width
> > r=0.25; %taper ratio of tukey window
>
> > %produce 2d tukey window
> > w=tukeywin(L,r)*tukeywin(L,r)';
>
> > %load and scale image.
> > im=imread('pout.tif');
> > im=double(im);
> > im=im/255;
>
> > %plotting
> > figure
> > subplot(1,2,1)
> > imshow(im,[])
> > title('original')
> > subplot(1,2,2)
> > imshow(imfilter(im,w),[])
> > title('filtered')
>
> > ----------------------------
>
> hey thanks for the assistance..[:)]- Hide quoted text -
>
> - Show quoted text -

np, was it what you were trying to achieve?

no, it was just one of the steps in my algorithm. m still working on my algorithm..
thankyou..