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Plainplane
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Posts: 632
Joined: Thu Mar 27, 2008 7:50 pm

Jpeg Compression Introduced To Image After Upload

Sat Jul 04, 2009 11:14 pm

I have a photo in the screening queue that is expected to undergo screening today or tomorrow. I have just taken a look at it and noticed has imperfections, JPEG artifacts that were not present before its upload to the screening queue. I can confirm that the artifacts were not in the finalized image that I submitted, which is still saved to my computer.

The photo was 684KB and thus I believe should not have been compressed in any way, as it was not over 1MB in size. I am now worried that the photo could be rejected solely because of this.

This is the photo in question (I am linking to it because the image function is still broken):
http://www.airliners.net/addphotos/b...1246146936.9345n874ga_attempt1.jpg

What should I do and what can be done? Should I delete it from the queue and reupload it? Would this issue reoccur if I were to do so?

Thanks in advance.
 
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Plainplane
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Posts: 632
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RE: Jpeg Compression Introduced To Image After Upload

Sun Jul 05, 2009 4:00 pm

It was rejected last night for soft.
http://www.airliners.net/addphotos/r...1246146936.9345n874ga_attempt1.jpg

My question now is: is this a result of the JPEG compression or is there an area of softness in the image that I am oblivious too?

(This can be moved to aviation photography if seen fit.)
 
conoramoia
Posts: 481
Joined: Wed Oct 17, 2007 7:04 pm

RE: Jpeg Compression Introduced To Image After Upload

Sun Jul 05, 2009 8:34 pm

Can you show the original?

Quoting Plainplane (Reply 1):
My question now is: is this a result of the JPEG compression or is there an area of softness in the image that I am oblivious too?

If its soft ,it's the forward part of the plane thats soft.

Regards,

Conor.
 
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Plainplane
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RE: Jpeg Compression Introduced To Image After Upload

Sun Jul 05, 2009 8:53 pm

Ok I see what you are talking about. Thanks Conor.

I will rework it now.
 
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clickhappy
Posts: 9042
Joined: Thu Sep 13, 2001 12:10 pm

RE: Jpeg Compression Introduced To Image After Upload

Sun Jul 05, 2009 10:42 pm

Love the angle and the clouds, but that high mid-day sun is a killer. It looks like you have great access, try it before 10am or after 4pm  thumbsup 
 
gabik001
Posts: 238
Joined: Sat Jun 18, 2005 9:16 am

RE: Jpeg Compression Introduced To Image After Upload

Mon Jul 06, 2009 1:34 am



Quoting Plainplane (Thread starter):

All web galleries during upload compressing a little bit an uploaded material. They have a scripts that cut out an exif and compressing pictures. They have to do that because of saving space (about 1/4 of picture weight). We have to remember that. I am checking my uploaded pictures after upload and if I see some artefacts I am trying to improve photo.
Regards , Gabriel
Canon 50D gripped + Canon 70D + 17-40 L + 24-105 L IS + 50 f/1.8 STM + 100-400L IS USM + Minolta X300 w/ 35-70 f/3.5
 
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Plainplane
Topic Author
Posts: 632
Joined: Thu Mar 27, 2008 7:50 pm

RE: Jpeg Compression Introduced To Image After Upl

Mon Jul 06, 2009 2:36 am



Quoting Clickhappy (Reply 4):
Love the angle and the clouds, but that high mid-day sun is a killer. It looks like you have great access, try it before 10am or after 4pm

I don't think I'll have a chance for repeat access any time soon. It was a special favor.

Quoting Gabik001 (Reply 5):
All web galleries during upload compressing a little bit an uploaded material. They have a scripts that cut out an exif and compressing pictures. They have to do that because of saving space (about 1/4 of picture weight). We have to remember that. I am checking my uploaded pictures after upload and if I see some artefacts I am trying to improve photo.
Regards , Gabriel

Got ya. I understand now.

Updated image with sharpening:
http://www.airliners.net/addphotos/big/ready/t1246820674.3871n874ga_body_attempt4.jpg
 
flight
Posts: 357
Joined: Sat Oct 15, 2005 6:41 am

RE: Jpeg Compression Introduced To Image After Upload

Mon Jul 06, 2009 4:15 am

I have had the same problem, my re uploads looked compressed and then another time they look sharp

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