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On Wed, 11 Mar 2009 13:44:55 +0100, Thomas Richter <thor@math.tu-berlin.de
Typically:
Image compression:
Component decorrelation -(Color transformation) (Wavelet, DCT,...)
-
Video compression includes additional steps: Motion prediction ...
Started by Thomas Richter on
, 7 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
: -
Component decorrelation =[ Color transformation ] [ Wavelet, DCT,...]
=
Video compression
In a single line,
my problem is;
I'll take all the values [ Pixel decorrelation ],
then, I'll apply.
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On Mon, 5 Jan 2009 01:42:32 -0800 (PST), Alexandre Ferrieux <alexandre.ferrieux@gmail.com
Do you really want the window to stay visually alive while you are
doing your cleanup ?
If yes, the only option is indeed to block within the <Destroyhandler...
Started by Alexandre Ferrieux on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
The
window's fate
If your code is too messy to operate that decorrelation, you're out of
luck :^P.
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On Thu, 12 Mar 2009 23:56:01 +0000 (UTC), "Aris " <arisleiv@yahoo.gr
HI,
I compressed an image using the imwrite command and now I want to decompress it. Any ideas? Will I lose some resolution?
Secondly, I implemented a decorrelating transform...
Started by Aris on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
On Sat, 14 Mar 2009 10:13:08 -0500, Walter Roberson <roberson@hushmail.com... .
On Sat, 14 Mar 2009 15:19:01 +0000 (UTC), "Chaos" <rothko.fan@gmail.com
"Aris " <arisleiv@yahoo.gr
unless compression is LZW or similar you always lose information .
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On Tue, 21 Jul 2009 06:09:32 -0700 (PDT), Gilad <gilad.kapel@gmail.com
Hi,
I want to compress multiple (around 1000) *very similar* images in a
more efficient way than compression each image to jpg format.
1. A lose-less method is preferable but...
Started by Gilad on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
The codestream would run an additional decorrelation
transformation.
Of the
codestream.
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On Thu, 10 Sep 2009 06:05:53 -0700 (PDT), hethomas <het260@googlemail.com
Hi all, I am seriously hoping someone out there can help me with
this . I am trying to georeference MODIS L1B hdf files using envi
batch mode. I found a bit about this on...
Started by hethomas on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
The NaN values to zero
(fill_replace_value=0, background=0), otherwise the decorrelation
stretch.
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In article <1da7a0e0-e0d7-4b65-8ae0-02550e40f79a@v5g2000prm.googlegroups.comRune Allnor <allnor@tele.ntnu.no
Thanks for your interest.
I would like to see if the observed reduction in amplitude of
the ensemble signal (spatially summated) is related...
Started by fburton@nyx.net on
, 3 posts
by 2 people.
Answer Snippets (Read the full thread at omgili):
On Sun, 18 Jan 2009 07:01:38 -0800 (PST), Rune Allnor <allnor@tele.ntnu.no
It's similar: Assume x and y column vectors of lengths M aand N:
K = M+N-1;
X=fft(x,K);
Y=fft(y,K);
cxy=ifft(X.*conj(Y));
You need to do some additional book-keeping to... .
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I have been given historical option data of vanilla options on two indices and asked to make an estimate of the cost of purchasing options on their composite index (50% each).
Can a sensible estimate be made?
or should I scrap this data set and go with...
Answer Snippets (Read the full thread at wilmott):
What can throw a wrench in this analysis is if there is a decorrelation effect due.
Percentile of that.
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I have been given historical option data of vanilla options on two indices and asked to make an estimate of the cost of purchasing options on their composite index (50% each).
Can a sensible estimate be made?
or should I scrap this data set and go with...
Answer Snippets (Read the full thread at wilmott):
What can throw a wrench in this analysis is if there is a decorrelation effect due.
Percentile of that.
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On Fri, 7 Nov 2008 00:07:25 -0800 (PST), ravi nooka <nooka.ravi@gmail.com
dear all,
what is the process of stretching a dull color (NCC,24bit )
image from a satellite?, so that it visual appearance will be good,
but the colors should...
Started by ravi nooka on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
--
Regards,
Martin Leese
E-mail.
.)
If the latter then you need to use a
decorrelation stretch.
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On Mon, 5 Jan 2009 23:14:34 -0800 (PST), Nimo <azeez541@gmail.com
On Jan 5, 11:52 pm, Thomas Richter <t...@math.tu-berlin.de
------------
Thanks for the clarification
But coming to the question of DFT.
From wikipedia article
Definition:- A...
Started by Nimo on
, 4 posts
by 3 people.
Answer Snippets (Read the full thread at omgili):
Transformation
is equivalent to the "ideal" decorrelation transformation - the
diagonalization.
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