Major Color Loss Converting PNG to JPG

SoppySoppy Registered Users Posts: 368 Major grins
edited March 21, 2010 in SmugMug Support
Hey everyone,
I am realizing that since I have uploaded JPG files so they can be printed, I am losing a seriously large amount of saturation and contrast that I added in post processing. The difference is most evident in my "Automotive" gallery (you can see the differences between the thumbnail images and the preview, where the thumbnail looks how the PNG looked and the preview is the JPG). How can I fix this, because right now the photos just look dull...
AWS Photographs
Photography by Alex Sopchak
Automotive | Portrait | Event
Hosted by Squarespace 6

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  • denisegoldbergdenisegoldberg Administrators Posts: 14,404 moderator
    edited March 11, 2010
    Moving to SmugMug Support forum, not a customization issue.

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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 11, 2010
    My mistake, sometimes I forget there is more than the one forum since I spend so much time in it lol...
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • Ann McRaeAnn McRae Registered Users Posts: 4,584 Major grins
    edited March 11, 2010
    I am thinking that PNG files do not have color space info in them. That might be why.

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  • AndyAndy Registered Users Posts: 50,016 Major grins
    edited March 11, 2010
    Soppy wrote:
    Hey everyone,
    I am realizing that since I have uploaded JPG files so they can be printed, I am losing a seriously large amount of saturation and contrast that I added in post processing. The difference is most evident in my "Automotive" gallery (you can see the differences between the thumbnail images and the preview, where the thumbnail looks how the PNG looked and the preview is the JPG). How can I fix this, because right now the photos just look dull...
    1- why are you saving as PNGs in the first place?

    2- post a link to an example, please ear.gif
    Andy

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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 11, 2010
    I save processed work as PNG because it keeps the color data, unlike JPG, and most online printers accept PNG format. I used it before when I was a Power user because I didn't want people ordering prints anyways so PNG always looked best for web viewing. Now that I want to sell prints, JPG is my only option. How would I go about including the color space data?

    Example:
    http://shutterbum.smugmug.com/Cars/Automotive-Photography/10583814_Jz3ne#792390100_4KQ6T

    Image 7 is JPG
    Image 8 is PNG

    Image 16 is JPG
    Image 17 is PNG
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • AndyAndy Registered Users Posts: 50,016 Major grins
    edited March 11, 2010
    In photoshop, be sure you save as jpg with srgb colorspace - that's it :)
    Andy

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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 11, 2010
    Alright I will do that. Thanks guys.
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 15, 2010
    Does anyone know of a program I can use to batch convert to this color space? All the programs on my computer are displaying it properly and the only batch photo editing software I have is FSViewer...
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 15, 2010
    Sorry for all the repeats...

    Does SmugMug convert the color space by chance? I seem to remember reading that somewhere on the site. I just went back to my photos and it seems the first couple of them are now correctly pictured and colored. Is this just a glitch and it is showing old photos or does it just take that long to convert them?
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 21, 2010
    Anyone? I would like to know if my clients prints are going to come out how I expect them too...
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • jfriendjfriend Registered Users Posts: 8,097 Major grins
    edited March 21, 2010
    Soppy wrote:
    Sorry for all the repeats...

    Does SmugMug convert the color space by chance? I seem to remember reading that somewhere on the site. I just went back to my photos and it seems the first couple of them are now correctly pictured and colored. Is this just a glitch and it is showing old photos or does it just take that long to convert them?
    If your images are accurately tagged with AdobeRGB, then Smugmug will convert them to sRGB. But, if your images are inaccurately tagged or not tagged at all, then Smugmug cannot and will not fix them.

    Accurate color requires working from a color-calibrated system, using only color-managed applications and making sure you do all the right things with color space profiles on your images. If any of the above are goofed up, then you will not see on your system, the same thing as a client will see on theirs or as a printer will produce.
    --John
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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 21, 2010
    I am working in sRGB with a color calibrated monitor. That's why I didn't know why my photos were looking different online. I'm not expecting SmugMug to fix things that are my fault...

    Back to my original question, if it does convert the color profile, how long should I expect that to take?
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • jfriendjfriend Registered Users Posts: 8,097 Major grins
    edited March 21, 2010
    Soppy wrote:
    I am working in sRGB with a color calibrated monitor. That's why I didn't know why my photos were looking different online. I'm not expecting SmugMug to fix things that are my fault...

    Back to my original question, if it does convert the color profile, how long should I expect that to take?
    If you upload an image tagged as sRGB, Smugmug does nothing to the original. If you upload an image tagged as AdobeRGB, Smugmug converts it to sRGB immediately (before any of the other image sizes are generated).

    Also, what applications were you using to view and edit your photos on your computer?
    --John
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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 21, 2010
    Adobe Photoshop CS4 and FastStone Image Viewer/Resizer. Also Adobe Lightroom 3 Beta on occasion.
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • jfriendjfriend Registered Users Posts: 8,097 Major grins
    edited March 21, 2010
    Soppy wrote:
    Adobe Photoshop CS4 and FastStone Image Viewer/Resizer. Also Adobe Lightroom 3 Beta on occasion.
    It looks like FastStone can cause problems with color profiles and is not fully color-managed either. Some reference articles:

    http://dptnt.com/2009/05/color-management-in-image-viewers/

    http://forums.dpreview.com/forums/readflat.asp?forum=1006&message=34670930&changemode=1

    I don't really understand what happened in your workflow so I'm just trying to help you understand exactly what Smugmug does and what your own tools are or aren't capable of.
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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 21, 2010
    That's the thing, my images are a collection from over a large period of time. So with the older photos, it was just photoshop and save. With ones in the middle, it was use FastStone for editing, then save (or move to photoshop, edit and save). Now more recently, it has been lightroom and save with photoshop for any special images or particular editing.

    So basically what I got from those articles is I should probably stop using FS Viewer. Can you recommend any alternatives foe a batch converter and viewer that is color space aware and loads relatively quickly?
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
  • jfriendjfriend Registered Users Posts: 8,097 Major grins
    edited March 21, 2010
    Soppy wrote:
    That's the thing, my images are a collection from over a large period of time. So with the older photos, it was just photoshop and save. With ones in the middle, it was use FastStone for editing, then save (or move to photoshop, edit and save). Now more recently, it has been lightroom and save with photoshop for any special images or particular editing.

    So basically what I got from those articles is I should probably stop using FS Viewer. Can you recommend any alternatives foe a batch converter and viewer that is color space aware and loads relatively quickly?
    I use Photoshop and Lightroom. Both are accurate and can operate on batches. That's what I know.
    --John
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  • SoppySoppy Registered Users Posts: 368 Major grins
    edited March 21, 2010
    Alright I'll have to stick with those then. Thanks for the help.
    AWS Photographs
    Photography by Alex Sopchak
    Automotive | Portrait | Event
    Hosted by Squarespace 6
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