There are probably many ways, but in the images I shoot it often shows up as "halos" around tree branches, etc. I'm sure others will have much more definitive answers than I but this is a start.
Halos are definitely a tell-tale sign, but also when you look at very narrow objects (thin branches, blades of grass etc.) you may some time see them being cut off with excessive sharpening.
Ideally you would want to apply various degrees of sharpening selectively to different parts of the image. There are a number of tools that help you do that by generating contrast masks.
At 600x400, or any usual size for web or email, I sharpen at 500/0.2/0. Seems about right, but if that's too much I may go as low as 300/0.1/0. You would never notice this low level of sharpening on a large file, but it is plenty effective on small ones.
At 640X480, with larger subjects I usually use 30/1.0/1. I might choose differently if it were something of smaller details. This gets the edges a bit more bite without going into an oversharpened look.
If your thread is about sharpening for the web and email, below is a tip that I placed in the Mid Atlantic Group's section.
I thought I would post this link to anyone who is possibly new to preparing images for the web. Although it covers how to perform this process in PhotoShop, I believe that this same process can be translated to a degree with any other "higher-end" image processing software package.
http://www.radiantvista.com/video_tutorials/
The nice thing about this is you can download the video for reference later on, instead of having to continually visit the website.
Also I would suggest to anyone who uses PhotoShop to visit this site:
Discussion
7 repliesIdeally you would want to apply various degrees of sharpening selectively to different parts of the image. There are a number of tools that help you do that by generating contrast masks.
Guy
Pete D.
Guy
At 600x400, or any usual size for web or email, I sharpen at 500/0.2/0. Seems about right, but if that's too much I may go as low as 300/0.1/0. You would never notice this low level of sharpening on a large file, but it is plenty effective on small ones.
If your thread is about sharpening for the web and email, below is a tip that I placed in the Mid Atlantic Group's section.
I thought I would post this link to anyone who is possibly new to preparing images for the web. Although it covers how to perform this process in PhotoShop, I believe that this same process can be translated to a degree with any other "higher-end" image processing software package.
http://www.radiantvista.com/video_tutorials/
The nice thing about this is you can download the video for reference later on, instead of having to continually visit the website.
Also I would suggest to anyone who uses PhotoShop to visit this site:
http://www.photoshoptv.com
Have a good one: