White Point Read-me file.

About White Point
White Point is a plug-in for Photoshop to select and adjust the white balance of images.

Disclaimer: This software is provided "as is". No warranties of any kind, expressed or implied, are given. Not even to its functionality, use and applicability. Read the License agreement for further information.

 

Contents of this Read-me file:
1. Installation
2. Preview
3. Color Patch
4. High Light Adjustment
5. Color Cast Reduction
6. Known issues and incompatibilities

1. Installation
Move or Copy the filter plug-in to your Photoshop filters folder, (re)start Photoshop, then the filter should be available under:

filter --> theimagingfactory --> White Point...

 

TIP: To assist in finding the best values you can reset values to the last used setting by holding the alt-key while selecting cancel.
To reset values to the initial defaults, hold both the alt-key and shift-key while selecting cancel!

 

2. Preview
This plugin shows the results of its calculations in a preview pane. To better judge the effect of your settings the preview can be zoomed by the zoom-buttons below the preview pane indicated with a "+" (plus) and "-" (minus) symbol. Alternatively you can use the cmd-"+" or cmd-"-" key sequence.

A percentage of scaling is given between the zoom buttons. You can click the percentage text to quickly switch between 100% and best fit. If the preview is larger than the preview pane you can scroll through the preview by clicking the mouse in the previewpane and subsequently draging the preview.

The preview checkbox next to the preview pane allows you to switch between previewing the original data and previewing the filtered data. Mac users can use the ctrl-space key sequence to quickly switch the preview checkbox.

 

3. Color Patch
The color patch shows the white point currently selected. A white point can be selected in 4 different ways:

1). by clicking in the image,
this transfers the color of the area that was clicked into the colorpatch.
(Note that click-and-drag will conveniently move the preview, and will NOT transfer any color)

2). by option-clicking the colorpatch,
this will let the plugin find the lightest color and colorcast automatically.

3). by command-clicking the colorpatch,
this will transfer the current foreground color from the image editing software into the colorpatch.

4). by clicking the colorpatch itself,
this brings up the colorpicker to select a custom color.

 

4. High Light Adjustment
The High Light Adjustment slider allows you to "over" or "under" expose the selected white point. Adjusting to the right makes the white point "break out" and the image becomes lighter. This is useful in case of glare in the image for example.
Adjusting the slider to the left makes the white point darker, which can be useful if the image goes to press.

 

5. Color Cast Reduction
If the white point is not pure (where the R, G, and B channels are equal), the white point is said to have a color-cast. The Color Cast Reduction allows you to selectively remove the color cast in the white point. Adjusting this slider to the right will entirely remove the color-cast so that the white point selected becomes entirely white in the image. This would be equivalent to using auto-levels in photoshop.
Adjusting the slider to the left will leave the colorcast untouched. This would be equivalent to moving the main white point slider in the photoshop levels control.
+ the hl slider controls the high light color cast, a value of 50% usually is sufficient in most cases.
+ the mt slider controls the mid tones color cast, this slider affects the image most.

 

6. Known issues and incompatibilities
- For the NT family of OSes this plugin requires Windows NT 5.0 or higher!
- The windows versions will occasionally not update its values when first selecting a slider followed by immediate dragging. In this case, briefly release the mouse, then resume dragging.

For questions, suggestions, comments and other issues regarding this product, or for general information regarding all of our products you can visit our web-site at www.theimagingfactory.com.