am I the only one

Discussion in 'Photographic Discussions' started by mysteryscribe, Jun 13, 2006.

  1. mysteryscribe

    mysteryscribe TPF Noob!

    Joined:
    Feb 1, 2006
    Messages:
    6,071
    Likes Received:
    3
    Location:
    in the middle of north carolina
    Can others edit my Photos:
    Photos OK to edit
    I promise this is my last question...

    Am I the only one who notices how much worst an image looks once it gets here. Or does anyone else have this problem at all.

    My negs look great
    The image look good when I work on it in the editor
    When it get here it is soft and the constrast drops some.


    I printed a few from the same digital file and they are much better thn either in my editor or on here. I know that the prints are always better than the image on my computer resolution I expect, but why are they sooooo much worse here than the file I use to edit. Does the host make that much difference.
     
  2. usayit

    usayit No longer a newbie, moving up!

    Joined:
    Nov 15, 2003
    Messages:
    9,523
    Likes Received:
    344
    Location:
    North New Jersey, United States of America
    Can others edit my Photos:
    Photos OK to edit
    Yes.... big difference on how the hosting service treats those images. I bet most are performing a resize/compression of the images to conserve on diskspace. I notice a drop in quality between images that I post via picturetrail and the images that are hosted "as is" on my website.
     
  3. markc

    markc TPF Noob!

    Joined:
    Mar 8, 2004
    Messages:
    4,237
    Likes Received:
    6
    Location:
    Rochester, NY Velocity: Unknown
    Can others edit my Photos:
    Photos NOT OK to edit
    I haven't used image hosting services other than photo.net (I FTP to my own space), but from what I've heard, many can make a real mess of things.
     
  4. ahelg

    ahelg TPF Noob!

    Joined:
    Sep 12, 2004
    Messages:
    338
    Likes Received:
    0
    Location:
    Durham, UK
    I took a picture of the Monolith in Oslo which I converted to black and white. The compressed jpeg file looked completely different from the uncompressed tiff file. Suddenly all the dark areas where much, much lighter. Totally ruined the effect. It's all got to do with the fact that compressions removes detailes. This is why I always keep the uncompressed tiffs.
     
  5. mysteryscribe

    mysteryscribe TPF Noob!

    Joined:
    Feb 1, 2006
    Messages:
    6,071
    Likes Received:
    3
    Location:
    in the middle of north carolina
    Can others edit my Photos:
    Photos OK to edit
    I suppose when they compress and already compressed file it goes wacky.
     
  6. mysteryscribe

    mysteryscribe TPF Noob!

    Joined:
    Feb 1, 2006
    Messages:
    6,071
    Likes Received:
    3
    Location:
    in the middle of north carolina
    Can others edit my Photos:
    Photos OK to edit
    I think i have made a startling discover.... when i save a scan I save it as jpg but when I open it in one of my editor for a different filter pack it compresses it yet again. Then when I reduce the size that program compresses it as well, then of course the host compresses it once more. I think I need to take a look at working in tiff until the last compression.
     
  7. JamesD

    JamesD Between darkrooms

    Joined:
    Mar 20, 2005
    Messages:
    1,002
    Likes Received:
    3
    Location:
    Living in Snapshot reality.
    TIFF is good. It's what I use until I get everything done; the final step is to resize, adjust sharpness as required, and save as JPG. Then, of course, repeat for a thumbnail image.

    TIFFs get huge, however. I run a 1000MHz Pentium III with only 128 MB of memory, and all my scanning has to be done under Win XP. Talk about system lag. That's why I scan, save, and reboot into Linux (Slackware 9.1, presently; I need to upgrade) to do the actual processing. Of course, Photoshop (which I don't have, anyway) doesn't run under Linux, unless you're using an emulator like Wine (which would bog down the system entirely and defeat the purpose of escaping Windows, any way--if it'd even run in Wine...), so I do my editing in The Gimp, which is free and quite powerful. Great software--and there's even a Windows version, which I've used and works great, although a little quirky, since it's really native to X-window with GTK, not to mention the Linux Kernel. Still, I highly recommend it, even under Windows. And no, I'm not affiliated with it; it's just a great product.

    Umm... when did I suddenly start speaking geek? Sorry... I'll slink off now...
     
  8. markc

    markc TPF Noob!

    Joined:
    Mar 8, 2004
    Messages:
    4,237
    Likes Received:
    6
    Location:
    Rochester, NY Velocity: Unknown
    Can others edit my Photos:
    Photos NOT OK to edit
    I'm not sure how this got popularized as a final step. I don't see a reason for it unless you really need the space. It think it's better to keep the final as TIFF in case you want to make any more edits down the road, and only use JPG for the web or printing services that won't handle TIFF. I wouldn't use it for printing either, unless it's required.
     
  9. Don Simon

    Don Simon TPF Noob!

    Joined:
    Jul 4, 2005
    Messages:
    2,484
    Likes Received:
    0
    Back to the main point of the thread, maybe I'm just stating the obvious here but have you checked the host's max pixel count? Like you my uploaded pics were getting soft and losing contrast, but then I realised the pics were slightly over the 800 pixel limit. Still being a complete noob I have no idea how it works, but instead of automatically cut down to below 800 pixels wide the pic was uploaded at the correct size, but was lacking sharpness and contrast like I said. I'm guessing it was recompressed. Anyway as soon as I cut the width down to just below 800 pixels the image looked just the same as it did in PS. Anyway it's just a thought, I think you (mysteryscribe) tend to upload relatively large images so maybe try resizing them if you haven't done so already. Again sorry if I'm just saying what you already know.
     
  10. mysteryscribe

    mysteryscribe TPF Noob!

    Joined:
    Feb 1, 2006
    Messages:
    6,071
    Likes Received:
    3
    Location:
    in the middle of north carolina
    Can others edit my Photos:
    Photos OK to edit
    Im feeling my way around in digital so you can not under estimate my knowledge of digital. I know just enough about editors to use them just like I used a conventional darkroom. Plus about two other features.

    This compression thing is all new to me. I have never had any dealings with it before. Im going to have to experiment with it' On the last post I resized the print down for my website anyway and used it from the site to her avoiding the host. Mark had mentioned that. It worked better. I think the next one I do today I will go jpg only at the end and see how that does.
     
  11. JamesD

    JamesD Between darkrooms

    Joined:
    Mar 20, 2005
    Messages:
    1,002
    Likes Received:
    3
    Location:
    Living in Snapshot reality.
    I should have been more clear. The final edit (in TIFF) gets saved, then gets resized, sharpened, and saved as jpeg. In fact, there are a number of versions of the file that I save:

    1. The original scan, unmodified, in TIFF. GZipped, because if it's unholy enormity, and archived somewhere.
    2. The working file, in TIFF, which gets sized down a bit to a workable size and processed to get an optimal image for further processing--then GZipped. I treat this version more or less like a negative; the master copy from which all further versions are made.
    3. Each finished version, in TIFF, at full resolution of version 2 (unless I had to reduce it in the course of processing--but always at the maximum resolution I have available). GZipped and archived. If I want a print, this is the one that gets uploaded.
    4. A reduced-size version (but still large) of version 3, saved in jpeg format at maximum quality (minimum compression). Usually, I use this one if I need a full-desktop size version (ie wallpaper) or a big version for some reason.
    5. A further-reduced size version (usually around 600X400 or something similar), also saved in jpeg at moderate quality. This one is usually used for the enlarged version of web display.
    6. Any additional smaller versions as required, in jpeg format.
    7. A thumbnail, typically 100 pixels in the long dimension, saved with moderate compression in jpeg format.

    So, I can always revert if I break it, or the file gets lost. If I ever require an image size (whether dimensions or filesize) that I don't already have, I go back to whichever version of 3 I need and work from that copy. I also keep two archived copies of everything, since I know that sometime, some where, I'll accidentally save instead of save as.

    But most to the point, never, ever work on a version of the file in JPEG format, unless it's going to be substantially reduced in dimensions (and I wouldn't even do it then). Every time you save in JPEG, you lose information in the compression.
     
  12. mysteryscribe

    mysteryscribe TPF Noob!

    Joined:
    Feb 1, 2006
    Messages:
    6,071
    Likes Received:
    3
    Location:
    in the middle of north carolina
    Can others edit my Photos:
    Photos OK to edit
    This is where I get to act all humble and say thank you. Once you guys put me on the right track I got it right. Work the heck out of it in tiff and then post it to my site in jpg then use that to post here. Works much much better..

    thanks all
     

Share This Page