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Upload File Sizes  
User currently offlineCfalk From , joined Dec 1969, posts, RR:
Posted (13 years 11 months 6 days 16 hours ago) and read 1283 times:

When I work on my files, I resize them to be 1000 pixels across and 600 or so high, and the jpg file I end up with (without any compression) is anywhere between 400K and 600K. But on the full-size display on A.net, if you right-click on the picture and select properties (or do Save As... and download the file), the filesize is only 150K or so. I don't see any degradation due to compression, so I am curious if I can somehow further reduce the filesize, and thus reduce the time spent waiting on uploads.

If it makes any difference, I use Corel PhotoPaint 7.

Has anybody else noticed this?

Charles

15 replies: All unread, jump to last
 
User currently offlineCliffie From , joined Dec 1969, posts, RR:
Reply 1, posted (13 years 11 months 6 days 15 hours ago) and read 1191 times:

Charles,

this one was only 64k when I sent it in. PS 5.0LE compression level 6.


Click for large version
Click here for full size photo!

Photo © Ingo Richardt



Cheers,
Ingo


User currently offlineInvader From Netherlands, joined Feb 2000, 327 posts, RR: 10
Reply 2, posted (13 years 11 months 6 days 14 hours ago) and read 1177 times:
AIRLINERS.NET CREW
DATABASE EDITOR

Charles,

I also use the 1000 pixels horizontal. After it has gone through my Adobe Photoshop, I save the file as JPG file, whereby you get a separate window with the JPEG Options to select the Quality. I normally use quality 6. As an example I give you some K values for the following photo :

Click for large version
Click here for full size photo!

Photo © Peter Vercruijsse


Quality 10 : 805k
Quality 8 : 286k
Quality 6 : 116k
Quality 4 : 79k
Quality 2 : 39k
Quality 0 : 22k
Differences between quality 10 and 6 are barely noticeable, but it makes a huge difference in k !
The picture above is at 116k, although the value given in the properties of the actual Airliners.net picture gives 131k, maybe caused by the text or so.

Regards,
Peter


User currently offlineSukhoi From Sweden, joined May 2006, 373 posts, RR: 8
Reply 3, posted (13 years 11 months 6 days 14 hours ago) and read 1169 times:

Everytime you save a jpeg image from the net its automatically compressed by windows hence the difference in file sizes. And every time you save it after that it gradually gets smaller in kb and the quality decreases.

Regards

Paul


User currently offlineSia jubilee From Hong Kong, joined Feb 2000, 145 posts, RR: 1
Reply 4, posted (13 years 11 months 6 days 11 hours ago) and read 1153 times:

Hi Charles,

I think your problem is always happen with the photographer who still using 56Kbps or slower modem.
In my experience, I used to compress the file to Quality 8 in Photo shop 5.01.
The file of a picture with 1024 wide and 684 high is around 400Kb for the shot with a sky background. And 600Kb with a massive background.
But the upload speed is .....acceptable. around 40sec.
After "dot net" request us scan the photos without compression.
I scan them in Quality 10 (ideal). All file are sized from around 900Kb to 1.1Mb.
But the upload speed so.....around 1 minute.
Recently, I set the broadband for internet connection (1.5Mbps). But the upload speed so strange....
sometimes 10-15 sec for 1Mb file, sometimes 40-45 sec.
So guess "dot net" has a speed restriction, do you think so?


User currently offlineBO__einG From Canada, joined Apr 2000, 2771 posts, RR: 18
Reply 5, posted (13 years 11 months 2 days 20 hours ago) and read 1122 times:

Hey Charles.
What kind of scanner do you have??
Because part of the good quality photos you have may also be the scanner.
I got my Provia and eh/./ I just wiggle my hands on a so-so fashion cuz when i scanned. It was grainy..

 Sad\



Chance favors the prepared mind.
User currently offlineCfalk From , joined Dec 1969, posts, RR:
Reply 6, posted (13 years 11 months 14 hours ago) and read 1109 times:

Hi Bo,

That's curious - you're the first person I've heard say that. I use a Nikon Coolscan III. What do you have?

Charles


User currently offlinePixAir From Switzerland, joined Jan 2001, 4 posts, RR: 0
Reply 7, posted (13 years 11 months 12 hours ago) and read 1107 times:

Hi Charles

Yes, grain can come also from the filmscanner, if your slides a underexposured. I recommend to use the latest firmware and software upgrade for your CoolScann III and take your airliner photos with a exposure compensation of +2/3EV .. +1EV. You can also set the scanner analog gain up to +2EV to correct existing underexposured slides. I use Fuji Sensia II ISO 100/200 slides (Provia is much better) and prepare my airliner-net images (1024x684) with Photoshop (ImageReady). The resulting sizes (high quality compression 60..70%) are all between 80k and 150k.

Robert


User currently offlineBO__einG From Canada, joined Apr 2000, 2771 posts, RR: 18
Reply 8, posted (13 years 11 months 10 hours ago) and read 1082 times:

Im stuck with a S20.
Ya know. I got my privias, and started scanning them
Somwhow, my scanner (S20) doesnt seem to cope with Provias very well.
I noticed --dampy colors.
Like the original slide when I put in a projector, the color and stuff is great but when I scan them.. Uhh.
They dont look as great with all them darkness and **grains*
Hmm.. But I've submitted some shots of my Provia and waiting for acceptance, I''ll show you when they're in.

Bo Kim



Chance favors the prepared mind.
User currently offlineJan Mogren From Sweden, joined Dec 2000, 2043 posts, RR: 50
Reply 9, posted (13 years 11 months 9 hours ago) and read 1081 times:

Bo,
have you tried Vuescan?
www.hamrick.com

/JM



AeroPresentation - Airline DVD's filmed in High Definition
User currently offlineScooter From United States of America, joined Jun 1999, 856 posts, RR: 1
Reply 10, posted (13 years 11 months 6 hours ago) and read 1079 times:

Yeah, when I had an S20, I was amazed at how much better the Vuescan software was. Well worth the $40US(?)...

User currently offlineDazed767 From United States of America, joined May 1999, 5498 posts, RR: 51
Reply 11, posted (13 years 11 months 1 hour ago) and read 1074 times:

My photo sizes usually come out to 1500kb!!! It takes forever to upload, I need help bad. The pic size is usually 900x640 for example. I use Corel Photohouse 1.1, it's basic, but it works well. What can I do?? I tried making the quality not as high, but it doesn't change the file size for me.

User currently offlineDazed767 From United States of America, joined May 1999, 5498 posts, RR: 51
Reply 12, posted (13 years 11 months 1 hour ago) and read 1073 times:

I have it scanned at 16 million colors, should it be set there? Next smallest is 256, and has little dots on the picture.

User currently offlineUSAir_757 From United States of America, joined Jun 2000, 996 posts, RR: 8
Reply 13, posted (13 years 10 months 4 weeks 1 day 23 hours ago) and read 1068 times:

I save on no compression(max quality) at all times. Usually the end result is between 500-600kb.

-----------------------------

To Bo:

Go SELL your S20 and use the money for an Acer-Scanwit 2720S, or Minolta-Dimage scan dual II.

These are much better scanners for the same price range.

-----------------------------

To Propfreak:

30% compression?! Don't stick with that...

There is no need for compression if the file is under 600kb after all editing, as airliners.net will add a reasonable amount of compression. If it's more 600 once edited, go ahead and stick 6% or 8% on...

-----------------------------

Regards,
C. Wassell



-Cullen Wassell @ MLI | Pentax K5 + DA18-55WR + Sigma 70-300 DL Macro Super
User currently offlineUSAir_757 From United States of America, joined Jun 2000, 996 posts, RR: 8
Reply 14, posted (13 years 10 months 4 weeks 1 day 23 hours ago) and read 1064 times:

Oops that was directed to PixAir - not Propfreak.


C. Wassell



-Cullen Wassell @ MLI | Pentax K5 + DA18-55WR + Sigma 70-300 DL Macro Super
User currently offlineNscaler From United States of America, joined Aug 1999, 243 posts, RR: 5
Reply 15, posted (13 years 10 months 4 weeks 1 day 23 hours ago) and read 1063 times:

I think Robert knows what he is doing. And 600 kb is a huge file, try to get it down to a third of that without losing quality (and yes its possible)

Saul


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