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3D Gugle
User's Guide

(Deghost by Colours LAB)

This LAB is designed to deghost anaglyphs by adjusting the colours, in order to reduce the probability of unfavourable colour combinations that are annoying to view.

When you start the lab, the two stereo images placed side-by-side are analyzed, compared and then reconstructed point by point.  Before any action by you, the colours that are mostly unbalanced and the saturation of the red channel are changed.

The "unbalanced colours" are colours that have an incomplete RGB triad or when one or two RGB values are lower than others.

In other words, it is impossible to create an anaglyph if one or two of the RGB colours are absent or weak in the whole image. If they are present only in some isolated areas they will be seen as "Ghosts".

In the example below, left anaglyph is produced conventionally; the right shows the anaglyph after being opened in the laboratory and after the automatic readjustment of colours.

This LAB produces highly effective results, and is usually the best to use of the various devices available in 3D Gugle but to have a good result it is necessary to make manual adjustments of saturation and contrast.

3D Gugle has many specialized laboratories for deghosting, and performing different functions, and also helpful documents, particularly:


LABs
    >> Deghost by Colours (in this page)
    >> Deghost by Contrast
    >> Deghost by Histogram
    >> Anaglyph programmable filter
    >> Open Stereo Pairs (Anaglyph section)
    >> Frame Deghost (special frame)
    >> Anaglyph Frame (special frame for "OUT" anaglyph)
    >> Luminance

Functions
    >> CMYK print preview
    >> Add colours
     >> Saturation
    >> Colours processing

Docs
    >> List of possible ghosts (Italian text)
    >> Anaglyph printing and printer colours setting
    >> Checking your anaglyph glasses and monitor

Note:
1) To hide/reveal the controls dialogue-box, click on the image to toggle.
2) To move the scroll bars you can use the mouse wheel or the keys. To use the mouse wheel select the scroll bar by clicking with the mouse.
The active keys are the following: "A." and "S" which move one unit, "Z" and "X" which move by several units while "Home" and "End" bring the scrolls to each extreme.

3)To see the others function not described on this page, please consult "Common functionality".

Before starting this LAB open in 3D Gugle a stereo image in Side-by-Side mode.
To create a stereo image in Side-by-Side you can use "Open Stereo Pairs" LAB.

Then start this LAB from the menu "Image" select "Deghost by Colours".

Deghost procedure

1) Open or create a stereo pair arranged side-by-Side
2) Scale and/or crop the stereo pair to its final size. To crop you can use the LAB of  Open Stereo Pairs.
3) Balance the colours between the two stereo images use the LAB of Left\Right Equalise
4) Start the Deghost by Colours LAB
5) Move the scroll bar "Red X" for a good placement in the "stereo window".
6) Increase the "Black" to reduce the ghosting as far as possible
7) Increase "Bright" to rebuild the contrast
8) Increase the Red chroma "Cr Red" to give 3D tone
9) If necessary correct the level of the blue and green with the scrolls bars "Blue" and "Green".

Press OK to close the laboratory and retain the anaglyph.

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