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zoidberg
Moderator
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# Posted: 27 Jan 10 00:39 - Edited by: zoidberg
Reply
It's not the first time I see this, but with today's picture I think the difference is strongest.
From same local file I uploaded today a picture to woophy and also to another site. The uploaded result shows an incredible color difference between them (second one is closest to what I saw on my PS):
woophy
another site
Is it because of my browser? Anyone can also appreciate it? Does anyone know why this happens?
Thanks! 
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Kambrosis
Member
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# Posted: 27 Jan 10 02:19
Reply
Hello Zoidberg.
I've been commented this to other woophyans last days...
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Zeeg
Member
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# Posted: 27 Jan 10 12:53
Reply
Unfortunately, I made the same observation several times. After oploading on Woophy the pictures seems like dull, with less contrast, sharpness and vivid colors.
But I'm not sure to perfectly master the way to convert the pics to the web. Could somebody explain here what are the best parameters for the web using Photoshop for instance, and which is the best process flow (for instance accentuation after resizing etc...)
Thanks
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TGB
Member
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# Posted: 27 Jan 10 20:25
Reply
When you look at the Woophy upload at full size and compare it with the second example there does not seem to be much difference.
Perhaps the lower brightness of the small Woophy image is due to the compression necessary to reduce its size.
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zoidberg
Moderator
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# Posted: 27 Jan 10 20:51
Reply
@TGB: even in the large view from both sites I can see a great difference:
Zeeg's question is very interesting... Anyone knows the answer?
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Bernhard
Moderator
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# Posted: 27 Jan 10 22:49
Reply
@ Zoidberg:
Which colourspace are you using for your uploads, sRGB or Adobe RGB?
Try to convert your pictures to sRGB before uploading. As far as I know, the web always uses sRGB for pictures. If you upload a picture in Adobe RGB format, the website might strip the colour information and assume sRGB. Some colour information can be lost (sRGB is a smaller subset of possible colours than Adobe RGB) and this might alter the way the colours appear in your photos online.
You should try to convert your photos to the sRGB colourspace before uploading.
My workflow for woophy (though there is a big chance that this is not the best...):
I always use the sRGB colourspace.
I resize my pictures to 1280 pixels on the longest side
I do a bit of re-sharpening after the resizing
Kind regards
Bernhard
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zoidberg
Moderator
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# Posted: 27 Jan 10 23:09 - Edited by: zoidberg
Reply
I think Bernhard got the answer!!
old
new
Thank you very much!
PS. Until quality is not so good as I see on the other site, in this case I guess the sRGB conversion is the reason. I'll have to test different settings. Do you have any suggestion, Bernhard?
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fotogravenswaay
Member
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# Posted: 28 Jan 10 09:37
Reply
I've noticed this effect also and I think Bernard has given the solution.......thnx Bernard!!
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Bernhard
Moderator
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# Posted: 28 Jan 10 22:39
Reply
@zoidberg
If you are shooting in raw-format you should get the best results ifyou change the colour profile in your raw-converter, before saving your picture as jpg.
I switched my camera to sRGB-format quite a time ago and all my editing programs too.
I have no special converting tips for powerpoint, sorry.
Kind regards
Bernhard
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zoidberg
Moderator
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# Posted: 28 Jan 10 22:46 - Edited by: zoidberg
Reply
Thanks a lot Bernhard. Yes I shoot in raw, but in RGB. I'll try to change it to sRGB (still don't know if my camera has the option). If not I can do it with the PS, but I'm interested to see if there are differences.
Thank you very much again!
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