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  1. #1
    Senior Member neuroanatomist's Avatar
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    Re: What is the Best Way to Post Pictures



    I guess my point was to post the same images at the same size from both hosting locations.


    Here's a side-by-side; I linked the Medium 500 image from Flickr (left), and I also downloaded the Medium 500 image to my computer and uploaded it to TDP (right):



    Flickr-hosted: <span style="white-space: pre;"] TDP-hosted:
    [img]/cfs-file.ashx/__key/CommunityServer-Discussions-Components-Files/13/7801.Resize-test.jpg[/img]


    I don't see any difference. So just hosting images here isn't a problem.


    Now I'll try letting the TDP site do the downsampling - same Medium 500 image for a side-by-side, the one on the right is a download of the 1066x1600 image from Flickr, which I uploaded to TDP (Insert Image, From Computer tab, with 333 in the Max Width field):



    Flickr-hosted (same as above): <span style="white-space: pre;"] TDP-hosted (download of larger Flickr image, 333 in the max width):
    [img]/resized-image.ashx/__size/333x0/__key/CommunityServer-Discussions-Components-Files/13/3583.Resize-Test-2.jpg[/img]


    The image that was down-sampled by the TDP site lost quite a bit of sharpness and contrast.


    So, the moral of the story is pick the size you want for your TDP-hosted images before you upload them, and delete the default value in the Max Width field (leave it blank) so the site doesn't downsize your image. It's not uploading to TDP per se that is the problem, it's letting the TDP site downsize your image that degrades the quality.

  2. #2
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    Re: What is the Best Way to Post Pictures



    Quote Originally Posted by neuroanatomist


    So, the moral of the story is pick the size you want for your TDP-hosted images before you upload them, and delete the default value in the Max Width field (leave it blank) so the site doesn't downsize your image. It's not uploading to TDP per se that is the problem, it's letting the TDP site downsize your image that degrades the quality.

    After reading this I decided to test this to see what effect the resizing default would have on the same picture. The picture below (it is a pencil drawing conversion I did with photoshop) did not look right once I posted on TDP. The first one I will post with the setting set at 800. The second I will delete the parameter. The picture width was converted to a width of 800 with DPP


    [img]/resized-image.ashx/__size/800x0/__key/CommunityServer-Components-UserFiles/00-00-00-47-09/Colored-Pencil.jpg[/img]


    Now no Setting


    [img]/cfs-file.ashx/__key/CommunityServer-Components-UserFiles/00-00-00-47-09/Colored-Pencil.jpg[/img]





    (note) this is the same picture off TDP posted twice

  3. #3
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    Re: What is the Best Way to Post Pictures



    I can see a slight diffrence with my 30" monitor.

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    Re: What is the Best Way to Post Pictures



    Quote Originally Posted by HDNitehawk


    I can see a slight diffrence with my 30" monitor.
    <div style="clear: both;"]</div>


    I can on my 27" also. The color in the picture uploaded here on TDP is a bit flatter looking.



  5. #5
    Senior Member doggiedoc's Avatar
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    Re: What is the Best Way to Post Pictures



    Excellent analysis neuro. That

  6. #6
    Senior Member Bill W's Avatar
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    Re: What is the Best Way to Post Pictures



    John....thanks for the comps and explanation, well beyond my brain power. LOL


    But I do have a question; as stated in my post above; I re-size for this site (ignoring default) and I re-size to make sure a pic fits for flickr. My question is about (WAG) 10% of the time when I post on flickr the IQ and colors aren

  7. #7
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    Re: What is the Best Way to Post Pictures



    Bill, 99% of the time if your pictures look different after you upload them to an online image host, it is the image host. However it never hurts to check your monitor and calibrate it as often as might be necessary because they do drift.


    If you don't have something like a spider or the calibration charts here is a nice site for calibrating your display. &gt;&gt; Monitor Test Images





    On Edit: Correction
    Some of the differences are the image host, In addition to that it is also your web browser! When you're working with a Image editor it is either to software and/or your monitor that is rendering your image data to the screen. When you use a web browser it is the browser that is rendering the page.

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