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Photomerge
Like HDR, Photomerge works like magic! Check out this image of my house, which looks like a panoramic photograph taken with an expensive panorama camera. In actuality, the image is a combination of four images taken with my full-frame digital SLR.
Whats truly amazing is that I didnt use a tripod, didnt accurately and evenly overlap the photographs and didnt keep the exposure constant for the four imagestechniques that used to be required in previous versions of Photomerge and in most panorama stitching programs. Basically, I shot on the P (Program) mode and took four pictures in an arch, knowing that Photomerge would magically stitch the images together seamlessly!
And speaking of seamlessly, in the past, a stitched panorama of a landscape or seascape would have been easier to create than a scene like this one, with many vertical lines that could fool a stitching program and create noticeable joint points. Notice that you cant see where the images are joined. How cool is that?
Above are the four point-and-shoot images. Again, I took them knowing that Photoshops Photomerge feature would work perfectly, which is why I didnt have to work too hard on the images for my panorama.
You find Photomerge by going to File > Automatic > Photomerge. Once there, you simply browse your computer for the images you want to stitch together, select your Layout and press OK. In a matter of seconds, you have a beautiful pano-ramawell, almost.
When your photographs are stitched together, youll get an image that looks something like this one. There are several ways to eliminate those unwanted areas (the background layer). The easiest way is to use the Crop tool and crop them out. Another technique is to select the entire image (Select > All) and then use the Transform/Warp feature (Edit > Transform > Warp) and pull out the anchor points until youre pleased with your crop. You also can use the Warp feature, as I did, to correct some distortion, which can happen, as it did in my panorama, when using a very wide-angle lens, a 17mm lens in this case.
For those of you who are interested in seeing whats going on behind the scenes in Photomerge, here are two screen grabs. In the Layers palette screen grab, you see the four layers, complete with layer masks; the black area is the area masked out. In the History palette screen grab, you see the 17-step process for my four-picture panomagically activated with a click of a mouse!
Summing up, when youre photographing a high-contrast scene or when you want to make a panoramic photograph, envision how Photoshop, HDR or Photomerge can help you achieve your goalquickly and easily.
To view more of Rick Sammons photography, visit his Website at www.ricksammon.com.
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