Adobe Photoshop CS Vs. Cs2
Adobe made a major shift in its software design when it created the Creative Suite in 2003. The company redesigned all of its major programs, then packaged them together. The idea was that people already were using two or more Adobe products---usually Illustrator and Photoshop---so why not make them all integral? Photoshop CS actually is version 8 of the software, with CS2 being version 9. There were some advances between the two.
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History
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Thomas Knoll began working on what would become Photoshop in 1987. When Adobe bought it, the first version, Photoshop 1.0, was released in 1990 for the Apple Macintosh. The Mac had a graphical user interface, and the PC didn't have Windows yet, so the Mac was a natural environment for the photo editing software. In the years since then, Photoshop has become the industry standard for photo manipulation software.
CS Browser vs. CS2 Bridge
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Version 8, or CS, introduced or improved two important features. The first is the Browser. This is basically a place to view, rename, select and open groups of digital images. It would be replaced in CS2 by Bridge, but the original Browser is much quicker than its successor. It doesn't have all the features of Bridge, but it allows you to view and open images quickly.
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Filter Gallery
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The next improvement in CS was the gathering together of many of the filters in the Filter Gallery. Instead of having to hunt through the Filters menu for the right special effect, the Filter Gallery is a popup workspace that allows you to select filters, preview what they will do to an image and tweak them with slider controls. The Filter Gallery is retained in CS2.
Smart Objects
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There aren't too many major improvements in CS2 over CS, but some that are useful. For example, Smart Objects allow you to import elements such as vector drawings from Illustrator and still be able to edit them. Since Illustrator produces vector-based images and Photoshop doesn't deal with them directly, this is a way to use Illustrator graphics inside a Photoshop image.
Spot Healing
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Another minor but useful improvement is the Spot Healing Brush. In CS, the Healing Brush takes a sample like the Clone tool, then pastes it over a problem area. Unlike the Clone tool, however, the Healing Brush retains such elements as transparency, shading, lighting and texture. You still need to use the Option/Alt key to sample an area. In CS2, the Spot Healing Brush can fix imperfections without you sampling an area. It automatically uses pixel information from the area near the spot to be fixed.
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References
- Photo Credit Shawn M. Tomlinson