Howard Jones
Member
Night shot from my home in San Diego. Seems a good subject masks a lot of errors.
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Night Panorama
- Thread starter Howard Jones
- Start date
Sean DeMerchant
Inactive
But you missed one error with JPEG compression. JPEG compression does very poorly with smooth textures and here I would call the image overcompressed as I can see banding/posterization in the sky. Using less compression/higher quality should reduce or remove this effect.
a thought,
Sean
Michael Fontana
pro member
Compression is alwith a issue, when showing panos at the web; a zoomified Pano might be a bit of a help.
RAWconversions of nightshots are not alwith easy.
RAWconversions of nightshots are not alwith easy.
Howard Jones
Member
Perhaps I played with the jpg file a bit too much after converting from raw. Does this look any better?
Michael Fontana
pro member
Howard
could you post a bigger size? Or a crop?
Your 2nd example looks better now; but still hard to judge.
Do you want to print it, or keep online, only?
could you post a bigger size? Or a crop?
Your 2nd example looks better now; but still hard to judge.
Do you want to print it, or keep online, only?
Howard Jones
Member
Here's a link to a "full sized" jpg. (removed by Cem_Usakligil)
Last edited by a moderator:
Cem_Usakligil
Well-known member
Hi Howard,
I do not recommend you link to a full sized version, especially when it does not contain your copyright information and/or a watermark. You can better have a crop of the sky (around 200x200 pixels). It is more than enough to show that the jpg comression is not present there.
Thanks.
Last edited:
Howard Jones
Member
Thanks, but you bring up a good point. Which is the appropriate forum to discuss the issue of watermarks, copyrights, digimarks and the like?
nicolas claris
OPF Co-founder/Administrator
Bonjour Howard
I would post here:
Photography Discussions: "Sales, Exhibitions and Web Presence"
Sean DeMerchant
Inactive
Perhaps I played with the jpg file a bit too much after converting from raw. Does this look any better?
Yes, this looks better with smoother tonal transitions in the sky.
enjoy your day,
Sean
Cem_Usakligil
Well-known member
Hi Sean,
I have seen the original prior to removing the URL to it and I can attest to it that there were no banding or posterization problems to be seen.
Sean DeMerchant
Inactive
Thanks Cem. My real concern here was just w/ the web released image and to ensure Howard was aware that low frequency textures require less JPEG compression for faithful reproduction. Truth be told, it looked fine on my CRT, but had banding on the LCD (both calibrated) which means it is likely to show banding on most new computers (think cheap uncalibrated LCDs) which is important for web presentation.
enjoy,
Sean
Alain Briot
pro member
I made some color adjustments to the image. I like it better that way. The original was a little too blue among other things. Let me know what you think.
the original is first, followed by the one with my changes.
the original is first, followed by the one with my changes.