ISOLATED COLOURS
  All three filters in this package allow you to manipulate individual colours within the image.
  Add Colour With this filter you can add up to six separate colours to a greyscaled image, red, green, blue, cyan, magenta and yellow. Threshold sliders allow you to control the amount of each colour.  A depth control is also included to enhance the effect.
  Colour Boost This filter allows you boost individual colours within the picture, so you can brighten that dull looking sky, bring out that models  red lips, or make a certain object more prominent. The twelve individual colour controls are for red, green, blue, cyan, magenta and yellow. The depth control will hide any 'false, stuck-on look' to the result.
  RGB Remover Does what it says! Working on the alpha channel you can remove any one or all red, green and blue colours from the image, leaving the area transparent. The filter also includes controls for removing highlights and/or shadows as well. More info on the images right.
More examples >>

IMPORTANT NOTE
These plug-in filters are not suitable for 64 bit Photoshop CS but will work in Photoshop CS running in 32 bit mode. There should be no problems using these filters on earlier versions of Photoshop CS and Photoshop Elements or any other programs such as Paint Shop Pro, Photo-Paint, PhotoImpact etc on both Windows 32 or 64 bit operating systems. More Info