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How Can I Help This Photo

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daviscfad's Avatar
United States
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 Posted 08/06/2011  10:34 am Show Profile   Bookmark this topic Add daviscfad to your friends list Get a Link to this Message Number of Subscribers
I have a cannon powershot sx30. The camera captured the color of the coin but when I cropped it and resized it it came out like below. I was wondering how I could clean it up a little and dont know much about it. thanks for your help

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Tim Stroud's Avatar
United States
2661 Posts
 Posted 08/06/2011  12:28 pm  Show Profile   Bookmark this reply Add Tim Stroud to your friends list Get a Link to this Reply
Try adjusting sharpness and contrast. What editing program are you using?
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daviscfad's Avatar
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 Posted 08/06/2011  12:46 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
i just have Irfanview
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Sidekick-CA's Avatar
United States
509 Posts
 Posted 08/06/2011  1:05 pm  Show Profile   Bookmark this reply Add Sidekick-CA to your friends list Get a Link to this Reply
Here's your photo after sharp/contrast adjustments in gimp. A little improved. Basically it looks like you were a bit out of focus when you took the shot. Was the camera mounted?

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daviscfad's Avatar
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 Posted 08/06/2011  1:42 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
Yea.it.was mounted. I have it about 8 inches above
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mmorgan22's Avatar
United States
570 Posts
 Posted 08/06/2011  2:13 pm  Show Profile   Bookmark this reply Add mmorgan22 to your friends list Get a Link to this Reply
I'm not sure about your Canon camera, but mine under the menu had the option to change the quality of images taken. I believe they are something like normal, fine, and superfine. Try setting it at the highest quality setting so when you come back to crop it won't look as blurry. Also you might want to try moving the camera as close as it can focus on the penny. I like to use Lightroom 3 to edit my photos, but it is like $300 or something like that. If you have a Mac computer, iphoto works great too.
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daviscfad's Avatar
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 Posted 08/07/2011  2:20 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
brought the coin up closer and lost the color but gained a clearer shot


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SsuperDdave's Avatar
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23522 Posts
 Posted 08/07/2011  2:30 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
That's a little more like it.

Color can be re-found. You should have a Custom white balance function that'll fix it for you.
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daviscfad's Avatar
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 Posted 08/07/2011  4:48 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
What does the icon look like? For white balance that is
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daviscfad's Avatar
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 Posted 08/07/2011  10:06 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
ok lets try this

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Edited by daviscfad
08/07/2011 10:35 pm
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SsuperDdave's Avatar
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 Posted 08/07/2011  10:29 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
Ding!

The SX30 now goes onto my list of "yeah, this one can shoot coins properly" cameras.
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daviscfad's Avatar
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 Posted 08/07/2011  10:36 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
lol thanks dave! I actually had the wrong reverse in the last picture so I just updated it. I know your not going to like this but I am using a flash light until I can get to the store and get the proper lighting
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daviscfad's Avatar
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 Posted 08/07/2011  10:37 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
Now I just have to figure out how to get really good close ups of the date
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SsuperDdave's Avatar
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 Posted 08/07/2011  10:41 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply

Quote:
I know your not going to like this but I am using a flash light until I can get to the store and get the proper lighting




Whatever works for you, buddy. It's about results, not methods.
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daviscfad's Avatar
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 Posted 08/13/2011  3:06 pm  Show Profile   Bookmark this reply Add daviscfad to your friends list Get a Link to this Reply
I am really digging this camera since you guys helped me out on how to use it. Check this out. It captured exactly how the coin looks

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Edited by daviscfad
08/13/2011 3:07 pm
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SsuperDdave's Avatar
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 Posted 08/13/2011  4:58 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
Love the look of that coin.

Something I note worth mentioning, which your lens suffers from: See the greenish hue around the rim of the coin, and where the shadow meets the paper? That's called axial chromatic aberration, and is likely something you're not going to be able to correct. It happens when a lens is not able to focus every single light wavelength at the same distance relative to the sensor. Zooms tend to suffer more from this than fixed lenses, and your SX30's huge zoom involves more optical compromises than most.

The color shift is most noticeable at areas of high contrast, like where the copper color or dark shadow meet the brighter white background. Your only hope of minimizing it is to drastically reduce the contrast, which is probably an unacceptable compromise in the quality of the image since we really don't want the coin blending into the background.
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