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Agree and disagree
"You can't guarantee ANY amount of compression with a lossless compression format. It is completely data dependent."

Yup, you're right. For lossless data, you can't guarantee any compression. You can just attempt to match the type of data better. If the data is random or doesn't match the expected type of data, you may even get a larger file size through lossless compression.

"there are in existence optimal methods for lossless encoding."

For certain types of data, possibly. However, there are many types of data, and an algorithm that is optimal for one type of data may not be optimal for another type. I'm sure it is possible there are algorithms yet to be discovered for some types of data that may yield better results.

"So there are no great improvements to lossless compression waiting out there."

I disagree.
Posted by: CobraA1   Posted on: 08/01/07 You are currently: a Guest | Members login | Terms of Use
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Microsoft photo standard comes into focus  Loverock Davidson | 07/31/07
This does seem like a good idea.  enduser_z | 07/31/07
where did you get this line from?  Linux Geek | 07/31/07
Here's a free clue Linux ID10T  Confused by religion | 07/31/07
This is a needed improvement for sure  Prognosticator | 07/31/07
Only MS?!? WTFlip?  Logics | 07/31/07
Yep, PNG is a great format..so what?  Prognosticator | 07/31/07
Well, you mentioned that you are a photo-enthusiast...  Logics | 07/31/07
Actually I use neither, I use RAW  Prognosticator | 08/01/07
Actually, you just agreed with me.  Logics | 08/01/07
Forgot to close my PRE tag  Logics | 08/01/07
Made some errors in the table. Corrections.  Logics | 08/01/07
"wavelet" is not equivalent to "better"  CobraA1 | 07/31/07
Not limited to 12 bits at all  DevGuy_z | 08/01/07
I see I made some mistakes and some unclear statements.  Logics | 08/01/07
loverock jumps the gun as usual  dhudson_z | 08/01/07
You're "S" key is broke (NT)  Loverock Davidson | 08/01/07
grammar nazi on myself  Loverock Davidson | 08/01/07
Of course, it is an extensible format  henklaak | 07/31/07
Parser error  henklaak | 07/31/07
New Format is LOSSLESS!!!!  wolf_z | 07/31/07
that's just M$ BS for the clueless  Linux Geek | 07/31/07
Shut up, fool! (nt)  No_Ax_to_Grind | 07/31/07
Still sore that Linux is a dead end in desktops?  Prognosticator | 07/31/07
And the space shuttle and the Mars Rover and.... (NT)  Logics | 07/31/07
wonder if winb$ will run a wshing machine ?  dhudson_z | 08/01/07
I'm guessing that you are a NBM "Mike Cox" wannabe.  Zogg | 08/01/07
I'm guessing it's a tradeoff  CobraA1 | 07/31/07
No guess to it.  DevGuy_z | 08/01/07
Agree and disagree  CobraA1 | 08/01/07
Read more carefully  DevGuy_z | 08/01/07
Could be good.  Henaway | 07/31/07
Pedophiles and Universal Access to Web 2.0  mighetto | 07/31/07
Yes, I have a response:  Logics | 07/31/07
Ditto...  No_Ax_to_Grind | 08/01/07
Channeling cavemen.  ejhonda | 08/01/07
Image formats have nothing to do with this.  CobraA1 | 07/31/07
or i missed something  benitodarder | 08/01/07
YOu need to cut back on your prescription dosage!  B.O.F.H. | 08/01/07
No need to worry.  enduser_z | 08/01/07
either jpeg vs png  PhotoPro001 | 08/02/07

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