COMPANY: Shapiro Consulting Group | URL: www.asiva.com | TYPE: Plug-in | PLATFORM: Mac, Windows | PRICE: $39
The Asiva Selection Plug-in utilizes the Asiva technology and mapping techniques to create selections in Photoshop 8 or 16-bit files. For 16-bit files, the plug-in creates a gradient selection without having to create an 8-bit duplicate file and transferring a selection. This will save you enormous amounts of time with larger files. It can provide more precise control over selections than Photoshop's built in color range selection.

* Uses the same patented Asiva technology in other Asiva software to create natural and precise selections in Photoshop in a short amount of time for 8 or 16-bit files.

* Flexible control over selection is obtained by using adjustable maps (curves) on the Hue, Saturation and Luminance components. Control the roll-off on the maps to get completely natural selections.

* Creates gradient selection.

* Save and load presets for use with other images.

* Built-in Color Sampler Tool allows for accurate sampling of the colors in the image the selection is to be created from.

* A simple interface and a thorough manual make for a sensible learning curve.

* All 16-bit per component processing gives Pre-CS users the ability to make 16-bit selection in a file without having to create a duplicate 8-bit file and transferring a selection. The larger your file is the more time you will save.

* Scratch Settings or "memory dots" allow you to save five different settings to switch back and forth from within a session.

Theory of Operation
* Define the source colors you wish to select using the built in Hue, Saturation and Luminance (HSV) curves or maps. Sampling the colors in the area/s of an image you wish to affect with the built in Color Sampler Tool is a simple way of selecting these values. Adjusting and fine tuning the curves in the maps allows you to include or exclude certain H or S or V (Luminance) values selected. This will give you a very precise and natural selection to work with.

* The slope of the curves will define how the filter is transitioned. A near vertical line on your Map will create sharply defined boundaries between where the selection is applied and is not, and a gently sloped curve on the Map will make the boundaries less defined or ‘feathered’.

* Since there are three maps (Hue, Saturation and Luminance) to work with, you will be able to 'feather' those boundaries based on their Hue, Saturation or Luminance value differences. Asiva's curves are so precise, that tedious masking becomes unnecessary.