To change it go to tools, Internet options, Advanced, Multimedia, Check the box - Show image download placeholders. Now you can right click on the image and save as JPG with Exif intact. Good luck,
Rich
Rich
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D60 pixellated blue sky
- Thread starter Simon Tate
- Start date
Simon Tate
Member
Jason I apologize. The image has been rotated using Photoshop. But that is all. Seriously, no other alterations. Plus no other image rotated in this way has ever shown this problem, even images taken the same day.
Simon Tate (UK)
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Simon Tate (UK)
You rotated and saved as a highly compressed JPG!!! That messed it up! I knew something was done to it. Good luck,
Rich
Rich
Simon Tate
Member
But how? All I will have done is open file, image/rotate canvas & then save. I would have had to deliberately altered the JPEG compression settings & I only ever do that if e-mailing image. How could I do that inadvertently? And on 6 consecutive images?
Simon Tate (UK)
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Simon Tate (UK)
Ron Hodgson
Senior Member
Did you just SAVE or did you do a SAVE AS and then name it a different filename?
If you save over the top of a JPG there is some loss. Not a lot... but it could clobber something like a sky.
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Ron
Some shots at PhotoSig .... no critiqueing allowed.... I don't need the points
http://www1.photosig.com/userphotos.php?id=4906
that were used but they can be changed when you save. Opening a jpg and saving as a jpg is a big no-no unless you are sure of what you are doing. Of course we all have to learn sometime. You are recompressing the image and adding artifacts. Be very careful when saving as a jpg and be sure of the settings. Always keep the original unaltered image for reference or for further editing. In PS you can save as a compressed (lossless) TIF to keep as an original. Good luck, its been a learning experience for us all.
Rich
Rich
Simon Tate
Member
Still perplexed. Why have I not seen this effect before, even on the other images taken later that day & rotated/ saved in exactly the same way?
Simon Tate
Member
I do also have a PSD file of the same image, which also shows the same pixellation. Hmmm....I still reckon something has occurred unrelated to PS.
Jason Hutchinson
Forum Pro
I have seen photoshop do this before, which is why I do a lossless JPG rotation instead. It retains perfect image quality, which even Photoshop can't do with a 10MB file. The fact that the file saved is 526kB, means you lossed about 2MB of data, and this causes the pixelation in the sky.
Jason
Simon Tate
Member
But that still wouldn't explain why it has only occurred in 6 images. Surely the effect would be consistent.
Simon Tate (UK)
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Simon Tate (UK)
James Long
Forum Enthusiast
Jason Hutchinson
Forum Pro
Myself, I use Breezebrowser. There are far more powerful applications though, including some that can do lossless crops! Pretty neat, but since I have Breezebrowser anyway for things like RAW conversion, I just use it for my simple 90 degree rotates.
jason
jason
Dave Hughes
Well-known member
Who do you think it was Jason?, ALIENS...
John Duesterhoeft
Leading Member
In any case... it's not the camera. The pixelation occured when you edited it. As much as I hate to say it. This looks like user error.
When weird things like this happen to me, I scratch my head... pay more attention to settings in the future... and continue on with my life 8)
When weird things like this happen to me, I scratch my head... pay more attention to settings in the future... and continue on with my life 8)
Jason Hutchinson
Forum Pro
As the original poster mentioned, it was Photoshop. Maybe you know something about Adobe's hiring practices that we don't?
Jason
hyslopc
Senior Member
JPEG compression does indeed consistently cause distortion commonly referred to as "JPEG artifacts". As you noticed, these artifacts are not highly visible in most images even with fairly strong compression, which is why JPEG is so popular. The fact that they are visible in blue sky (and other scenes) is why we have other file formats such as TIFF and CRW.
If JPEG was perfect, we wouldn't need any other file formats, but it's far from that. Like all other file formats, it's a compromise. JPEG gives low file sizes, but introduces artifacts. If you don't want JPEG artifacts, shoot RAW and then convert to 16-bit TIFF - that's what I do.
D60, 16-35/2.8L, 28-135 IS, 550EX
If JPEG was perfect, we wouldn't need any other file formats, but it's far from that. Like all other file formats, it's a compromise. JPEG gives low file sizes, but introduces artifacts. If you don't want JPEG artifacts, shoot RAW and then convert to 16-bit TIFF - that's what I do.
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D60, 16-35/2.8L, 28-135 IS, 550EX
for the info to correct this problem. Not being able to get EXIF from uploaded pics has been 'bugging' me (no pun intended LOL). I couldn't seem to correct it--this does it I presume.
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Diane B
http://www.pbase.com/picnic/galleries
B/W lover, but color is seducing me
Okay, here's another question. I thought I understood this pretty well, but now--not sure. I've used graphics apps for good long while and knew to never resave a jpeg. I normally shoot in RAW, convert, etc. However, sometimes I do shoot in jpeg--large/fine. I open in PS, rotate if need be, do all my processing--THEN save as tiff. Should I save as tiff--THEN post process? I didn't realize that PS would do a lossy rotation--have not seen that spelled out anywhere, but any extra bit of knowledge I can pick up concerning PS is greatly appreciated.
Thanks Jason. Glad I read this thread--I wasn't going to read it because it didn't seem relevant, but I know that on this forum as on any other--the threads 'morph' and you can pick up some good info. The problem in determing IF the thread has some relevant info is reading these long threads-- sigh .
Diane B
http://www.pbase.com/picnic/galleries
B/W lover, but color is seducing me
ashton lamont
Leading Member
Fascinating discussion.
Is it possible to do a lossless rotation on a JPEG image in Photoshop?
I always shoot in RAW and convert to 16 bit TIFF, plus I rotate in Breezebrowser straight away so for those two reasons it doesn't affect me. But to loose that amount of data on a simple rotation seems mad. I'd be interesrted to know for future reference. Cheers.
Is it possible to do a lossless rotation on a JPEG image in Photoshop?
I always shoot in RAW and convert to 16 bit TIFF, plus I rotate in Breezebrowser straight away so for those two reasons it doesn't affect me. But to loose that amount of data on a simple rotation seems mad. I'd be interesrted to know for future reference. Cheers.
John Harrison82293
Senior Member
Several photos taken on the beach with clouds and a heavy blue sky had a lot of noise in them. I have never gotten this before or since. I also shot some pics with an even blue sky with some noise but not nearly as bad.
John R.
John R.
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