Tuesday, August 4, 2009
How to defeat edge artifacts in composited landscape images
The Clone Stamp tool is one of my favorite fixes and works extremely well with complex selections. This method is fairly straightforward, and to illustrate it, I’ve chosen a photo of a sleepy cove in St. Thomas with a washed-out sky (Figure 4a).
The first step here is to “lock transparent pixels” on the layer with the fringe (Figure 4b), otherwise you’ll end up with cloned patterns beyond the edges you’re trying to fix. Select the Clone Stamp tool from the Tools palette. To start, I pick an anchor point to act as a source from where I’d like to clone. Do this by holding down the Opt/Alt key while clicking the left mouse button—then let up on the Opt/Alt key, move the cursor to the fringed edges and click away. The halo disappears and is replaced with the multihued leaf pattern from the source.
Figure 4d shows the completed composited image after all halos have been removed with the Clone Stamp tool.
I’ve presented a number of techniques that I use for dealing with annoying edge fringe. Some of these procedures may work better for you than others because each image is different, as are your own requirements. Don’t be afraid to experiment and try multiple fixes on the same image if one solution doesn’t quite cut it.
To see more of Rick Sheremeta’s photography and learn about upcoming photo workshops, visit his website at www.alpenglowproductions.com.
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