JPG Degradation
May 29, 2012 12:14:56 #
I know that a jpg degrades slightly every time it is modified and saved. How about renaming or moving jpgs? Does that have any negative effect on them?
May 29, 2012 12:15:31 #
jerryc41 wrote:
I know that a jpg degrades slightly every time it is modified and saved. How about renaming or moving jpgs? Does that have any negative effect on them?
No.
May 29, 2012 12:18:18 #
mdorn wrote:
No.
jerryc41 wrote:
I know that a jpg degrades slightly every time it is modified and saved. How about renaming or moving jpgs? Does that have any negative effect on them?
No.
Good. Thanks
May 30, 2012 05:51:45 #
If I really like a photo I copy it. Then all the times I use it, I use the copy. If I need a really good one of the original then I go back to that one. You have to use them a lot to see any degradation.
May 30, 2012 08:26:13 #
Opening and closing does not cause degradation. Each time it is "resaved" creates the problems. Look all you like. Just don't modify and then save again.
May 30, 2012 08:31:53 #
Let's say I have an image that I want to go back and tweak occasionally (LR & PS) before I save the final version as a jpg, in what format should I save the intermediate copies?
May 30, 2012 08:43:02 #
This is where taking photos in RAW format and working in that is a big benefit. To do this, though, you need a full-blown editor like Photoshop or Lightroom.
Working in another image format that is lossless can help. JPEG 2000 has some capability in this regard, but lacks compatibility with other applications so you may have to save first, then save as JPG.
Alternatively, use Photoshop Elements and keep modified files in the PSD format. When you need a copy for use, save as JPG after you do your editing and safe as PSD first.
Working in another image format that is lossless can help. JPEG 2000 has some capability in this regard, but lacks compatibility with other applications so you may have to save first, then save as JPG.
Alternatively, use Photoshop Elements and keep modified files in the PSD format. When you need a copy for use, save as JPG after you do your editing and safe as PSD first.
May 30, 2012 08:54:47 #
mremery wrote:
Alternatively, use Photoshop Elements and keep modified files in the PSD format. When you need a copy for use, save as JPG after you do your editing and safe as PSD first.
Do LR, PS, and PSE all save in PSD by default? If so, I could use LR and PS for editing, and when I'm satisfied, convert it to jpg.
May 30, 2012 09:11:00 #
May 30, 2012 09:13:10 #
Emelen wrote:
Save it as a Tiff . It is a large file with lossless compression.
Anything but jpg, huh? OK.
May 30, 2012 09:32:42 #
What you do is load your JPEG, make any modifications you want then do a "Save as" with a different name. Then just close the image and your original is retained in unmodified form. Or, as someone else mentioned - make a copy into a different file, modify it all you want and save the copy - the original remains unchanged - BUT KEEP them in SEPARATE files
May 30, 2012 09:43:25 #
docrob
Loc: Durango, Colorado
jerryc41 wrote:
Let's say I have an image that I want to go back and tweak occasionally (LR & PS) before I save the final version as a jpg, in what format should I save the intermediate copies?
psd
May 30, 2012 09:45:07 #
BboH wrote:
What you do is load your JPEG, make any modifications you want then do a "Save as" with a different name. Then just close the image and your original is retained in unmodified form. Or, as someone else mentioned - make a copy into a different file, modify it all you want and save the copy - the original remains unchanged - BUT KEEP them in SEPARATE files
I have been doing that, but I often want to go back to the image I have modified and make more changes. For that, I think I will save in PSD.
Thanks for the advice.
May 30, 2012 09:45:13 #
jerryc41 wrote:
Do LR, PS, and PSE all save in PSD by default? If so, I could use LR and PS for editing, and when I'm satisfied, convert it to jpg.
mremery wrote:
Alternatively, use Photoshop Elements and keep modified files in the PSD format. When you need a copy for use, save as JPG after you do your editing and safe as PSD first.
Do LR, PS, and PSE all save in PSD by default? If so, I could use LR and PS for editing, and when I'm satisfied, convert it to jpg.
They all can.
In LR you can do all your editing, and edit in PS while not leaving LR, and then export the finished product to jpg.
May 30, 2012 10:01:00 #
rpavich wrote:
They all can.
In LR you can do all your editing, and edit in PS while not leaving LR, and then export the finished product to jpg.
jerryc41 wrote:
Do LR, PS, and PSE all save in PSD by default? If so, I could use LR and PS for editing, and when I'm satisfied, convert it to jpg.
mremery wrote:
Alternatively, use Photoshop Elements and keep modified files in the PSD format. When you need a copy for use, save as JPG after you do your editing and safe as PSD first.
Do LR, PS, and PSE all save in PSD by default? If so, I could use LR and PS for editing, and when I'm satisfied, convert it to jpg.
They all can.
In LR you can do all your editing, and edit in PS while not leaving LR, and then export the finished product to jpg.
I guess I'll go back over those 230 original photos and start editing all over again - or maybe not. Now I know what to do the next time. Actually, I don't think there was much harm done opening, editing, and saving maybe three times.
If you want to reply, then register here. Registration is free and your account is created instantly, so you can post right away.