New "Ultimate" 8k Iapetus Texture for Download

General discussion about Celestia that doesn't fit into other forums.
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t00fri
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Post #21by t00fri » 25.01.2006, 14:08

Chuft-Captain wrote: It would be interesting to know what Fridger's screen resolution is.
I wonder ....


1600x1200, 32bit color.

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Chuft-Captain
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Post #22by Chuft-Captain » 25.01.2006, 14:47

1600x1200, 32 bit color.
sweet!

Anyhow I would appreciate if someone could inspect my new 4k iapetus texture that I re-committed to CVs yesterday. The colored pixels are also /much/ reduced.

Sorry, I would, but I'm not "committed" to CVS at this point in time (please excuse the pun).
"Is a planetary surface the right place for an expanding technological civilization?"
-- Gerard K. O'Neill (1969)

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selden
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Post #23by selden » 25.01.2006, 17:24

Selden

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t00fri
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Post #24by t00fri » 25.01.2006, 20:37

DBrady wrote:T00fri,
Have you tried using a noise filter? My favourite is noiseware from imagenomic. Its very powerful and almost seems to work like magic on certain types of noise, lifting it off while leaving the underlying image completely intact! I use it alot for digital photos. There is a free community edition on the download page below...

http://www.imagenomic.com/download.asp
...


DBrady,

tonight I had some time and did some experiments with the noisefilter you quoted. Indeed, I must say that it works very well. While normally I refrain from using commercial products, this filter seems worth an exception ;-)

Note:
====
I replaced my 8k Iapetus texture by the noisefiltered one. Here is the link once more.

+++++++++++++++++++++++++++++
http://www.celestiaproject.net/~t00fri/images/iapetus.jpg
+++++++++++++++++++++++++++++


Also I replaced the 1k and 4k Iapetus and Tethys textures in CVS by the noisefiltered ones. If you want to try the latest CVS versions out, use Selden's link above this post.


Bye Fridger

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Post #25by DBrady » 25.01.2006, 21:12

t00fri,
Just glad i could help.

While normally I refrain from using commercial products, this filter seems worth an exception

It appears to have cast a spell on you :wink:

Thanks for all your work on these textures.
Slan

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Post #26by Kolano » 25.01.2006, 21:47

t00fri,

Did you turn up the compression for your revised image, or does the noise free image just compress much better?

Image with noise: 12,094,421 bytes
Image without noise: 2,530,126 bytes
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Post #27by t00fri » 25.01.2006, 22:27

Kolano wrote:t00fri,

Did you turn up the compression for your revised image, or does the noise free image just compress much better?

Image with noise: 12,094,421 bytes
Image without noise: 2,530,126 bytes


Indeed, I am mystified and unfortunately unable to reconstruct what had happened with my first upload. It actually had precisely the size of my corresponding 8k PNG lossless file. So clearly it was WAY too large for a JPG.

No I did not turn up the compression. I /always/ use the same parameters for JPG saving: 85% quality, subsampling: 1x1 1x1 1x1, DCT method: floating point.

Anyway the present jpg update just has the right size for a 8k colored jpg with these specifications. My download speed is so high that I don't really tend to watch whether I download 2.5 MB or 12 MB ...

Bye Fridger

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Post #28by danielj » 29.01.2006, 17:04

I did like your job,but the equatorial ridge is in low resolution,though.I think your Tethys texture is much better.
I wonder if I have to delete the iapetus pack from the Extras,to your new texture be properly shown.Can you tell me?
I only change the solarsys.ssc from iapetus.png to iapetus.jpg and put the new texture in the hires...


t00fri wrote:
Kolano wrote:t00fri,

Did you turn up the compression for your revised image, or does the noise free image just compress much better?

Image with noise: 12,094,421 bytes
Image without noise: 2,530,126 bytes

Indeed, I am mystified and unfortunately unable to reconstruct what had happened with my first upload. It actually had precisely the size of my corresponding 8k PNG lossless file. So clearly it was WAY too large for a JPG.

No I did not turn up the compression. I /always/ use the same parameters for JPG saving: 85% quality, subsampling: 1x1 1x1 1x1, DCT method: floating point.

Anyway the present jpg update just has the right size for a 8k colored jpg with these specifications. My download speed is so high that I don't really tend to watch whether I download 2.5 MB or 12 MB ...

Bye Fridger


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