Go Back   Steve's Digicams Forums > Post Your Photos > Landscape Photos

Reply
 
Thread Tools Search this Thread
Old Mar 25, 2010, 6:30 PM   #1
Senior Member
 
NoFlashPhotography's Avatar
 
Join Date: Feb 2010
Posts: 333
Default A Lonely Bird.

Taken with fuji s1500!
Attached Images
 
NoFlashPhotography is offline   Reply With Quote
Sponsored Links
Old Mar 25, 2010, 8:34 PM   #2
Senior Member
 
NoFlashPhotography's Avatar
 
Join Date: Feb 2010
Posts: 333
Default

Ugh, It's horrible the way the photo looks on the forum. I had to change the resolution and everything now it's blurry.
NoFlashPhotography is offline   Reply With Quote
Old Mar 26, 2010, 5:02 AM   #3
Senior Member
 
Alan T's Avatar
 
Join Date: Jun 2003
Location: Chester, UK
Posts: 2,980
Default

Quote:
Originally Posted by NoFlashPhotography View Post
I had to change the resolution and everything now it's blurry.
It's often necessary to apply computerised sharpening after resizing.

This is because apparent sharpness is an optical illusion, with extra sharpening automatically applied in some degree by many digicams. It's done by enhancing edges a little. It only works optimally at one resolution, so when you downsize for the forum, you may well need to resharpen at the pixel size, and preferably at the actual physical image dimensions at which it's going to be viewed.

Many image editors have a sharpen function. I use an antique version of Paint Shop Pro, which offers several ways of doing it, or the freeware 'Irfanview' (www.irfanview.com).

One popular method is 'unsharp masking'. This superimposes another version of the image, slightly out of register. This emphasis edges in the image, and paradoxically makes it look sharper to the eye.

Here is the effect of PSP's basic 'sharpen' utility...
Attached Images
 

Last edited by Alan T; Mar 26, 2010 at 5:14 AM. Reason: Spelling mistake
Alan T is offline   Reply With Quote
Old Mar 26, 2010, 5:07 AM   #4
Senior Member
 
Alan T's Avatar
 
Join Date: Jun 2003
Location: Chester, UK
Posts: 2,980
Default

...and here is the result of PSP "Sharpen more". As I hope you can see, applying too much sharpening makes things worse, introducing noise round small objects.
Attached Images
 

Last edited by Alan T; Mar 26, 2010 at 5:11 AM.
Alan T is offline   Reply With Quote
 
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 8:41 PM.