[vtkusers] Fwd: Quality of a vtkImageData

[Paulo Henrique Junqueira Amorim]

---------- Forwarded message ----------
From: CLEMENTS, ROBERT <rclement at kent.edu>
Date: 2008/11/5
Subject: RE: [vtkusers] Quality of a vtkImageData
To: Paulo Henrique Junqueira Amorim <paulojamorim at gmail.com>


Would it work if you reduced the size of the image with  vtkImageResample ,
then resample the image again back to the original  size?

Rob

Hi,

Thank you, but talk of reducing the number of pixels without changing the
picture size. The vtkImageResample change the spacing. Since no change?


Regards,
Paulo Amorim




2008/11/5 Marcel Weiss <mweiss at cbs.mpg.de<mailto:mweiss at cbs.mpg.de>>
whart do you understand as "image quality" ?

the amount of noise? sharpness of boundaries?

vtkImageNoiseSource might help to add artificial noise.

Marcel

----- Original Message -----
From: "Paulo Henrique Junqueira Amorim" <paulojamorim at gmail.com<mailto:
paulojamorim at gmail.com>>
To: vtkusers at vtk.org<mailto:vtkusers at vtk.org>
Sent: Wednesday, November 5, 2008 4:28:33 PM GMT +01:00 Amsterdam / Berlin /
Bern / Rome / Stockholm / Vienna
Subject: [vtkusers] Quality of a vtkImageData


Hi,

how can diminish the quality of a vtkImageData without changing the size and
spacing, ?


Regards,
Paulo Amorim

_______________________________________________
This is the private VTK discussion list.
Please keep messages on-topic. Check the FAQ at:
http://www.vtk.org/Wiki/VTK_FAQ
Follow this link to subscribe/unsubscribe:
http://www.vtk.org/mailman/listinfo/vtkusers
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20081105/93519fcc/attachment.htm>