Tuesday, May 14, 2013

Photoshop Plugins in Theory and Practice

Tags

By Danny Hoyle


Photoshop plugins load into Photoshops Filter menu when Photoshop launches. They add all sorts of extra functions to Photoshop. In the old days Photoshop plugins were just a bunch of weird effects. Recently a number of plugins have been produced, that do sophisticated image retouching that would otherwise be impossible or very time consuming in Photoshop. Photoshop has since begun to offer functions similar to some of the old plugins, like lens correction and proper black-white conversion.

But how does one install plugins into Photoshop, you may ask? Inside the Adobe Photoshop folder, there is a folder called Plug-Ins. All you have to do is place the plugins inside the Plug-Ins folder. Launch Photoshop and the menu Filters will have your plugins listed. If Photoshop was already running, when you installed the plugins, you will have to quit Photoshop and launch Photoshop anew. You can actually install the plugins in a different folder than Photoshop's Plug-Ins folder. This is how to set Photoshop up to load plugins from any folder you like:

1. First make sure your alternative plugins folder exists, otherwise create it where ever you like. 2. Run Photoshop. 3. Open the menu Edit. At the bottom you will find Preferences; go there. This opens the Preferences sub menu. 4. In Preferences go to Plug-Ins or Plug-Ins and Scratch Disk, depending on your Photoshop version. 5. Activate Additional Plug-Ins Folder by checking it. 6. Click the button Choose to browse to your desired alternative Plug-Ins folder.

That's it! You can now store all your plugins in this alternative plugins folder. Exit the preferences and relaunch Photoshop. When you relaunch Photoshop, the menu Filters will have the plugins in your alternative plugins folder listed at the bottom of the menu.

There are generally two types of plugins: 1. Plugins for photo retouching. 2. Plugins that add effects. Retouching plugins tend to manipulate what is already in the picture without adding anything new. On the other hand, effects plugins add, well, effects to the image. Examples of retouching could be sharpening, exposure or saturation. Examples of effects plugins could be lens flare, bokeh or raster. Of course there are cross overs. Is lens correction a retouch or an effect, for example? It is a retouch if you correct barreling or pincushion, but if you make a regular image look like a fish eye picture, it is an effect.

The history of plugins goes back to Photoshop v 2, in 1991, when support for third party plugins was introduced. In 1994 Joe Ternasky released Filter Factory for writing third party plugins. In 1997 Alex Hunter released Filter Meister as an improvement over Filter Factory and many of today's plugins are written in Filter Meister. In 2007 a novel approach to plugin development was released as Filter Forge. Filter Forge plugins require Filter Forge to run and they are not stand alone. Currently Filter Meister plugins only support 32bit Photoshop. But Alex Hunter says 64 bit support will come some time in 2013. Filter Meister is only for Windows.




About the Author:




EmoticonEmoticon