Tutorial: Anaglyph Frame LAB

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3D Gugle
User's Guide

(Anaglyph Frame)

This LAB is specifically designed to create and apply frames for anaglyphs using the modern techniques of "OUT". Obviously the same frames can be used with standard anaglyphs or ordinary images.

The modern trend called "anaglyph OUT" offers several additional advantages compared to traditional anaglyph methods and the main advantages are:

a) limited ghosts
b) preservation of colours
c) images of high visual impact
d) removing the problem of the "Window Violation".

In the example below is an anaglyph "OUT" that uses a frame "Trapeze Down" created in this lab.

The technique "OUT" offers advantages but also problems. The main problem occurs and becomes apparent when the anaglyphs are intended for viewing by a wide spread viewing public, whose ability to resolve the two images is affected by both age and experience. Excessive deviation is easier for young people to accommodate whereas the older one is, or if one's vision is impaired, the harder it is to view this type of anaglyph.
See also coefficients of vision (Italian text).

The technique of "OUT" cannot be applied to just any anaglyph but only to those created using a larger than normal stereo base i.e. Hyperstereo.

Another example from a conversion that uses the mode "Ellipse" combined with the effect "Pop-Up".

Notes
1) This laboratory uses a complex calculation that takes time, so it is recommended that, when the images are large or your processor is slow, you turn off the live preview.
To disable this, remove the check on "Preview" and then use the test button to verify the new parameters.
2) For the optimal viewing of the "OUT" anaglyph it is recommended that you use the posture indicated by the image below.

To improve your Stereo image

    Frame Shop                           To frame anaglyph and stereo images
    Paint LAB                               To retouch or to clone areas
    Combine LAB                         To combine two images
    Write LAB                             To add normal or stereoscopic text to your images
    Luminance LAB                       To control the general colour depth and to set up the colours for anaglyph printing
    Emboss Depth Emphasise     To add body and form to the 3D
    Holo Lab                     Image reconstruction and to add tone to your image
    Jpeg Analysis                        To correctly save an image using the JPEG format
    Box                                         To crop or to add a mark to your image

Please remember also that:

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 these functions select first 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) If your image is too big select the appropriate "Zoom" level in the Zoom list box to reduce the displayed size. The Zoom control is in the same dialogue.
If you set the Zoom option to "Window" 3D Gugle automatically fits your image to the main window.
The zoom function is fast and of high quality, providing a blur-free view with no retinal-rivalry.

4) To see any other functionality not described on this page, please consult "Common functionality".

Those examples of this page which are not created by 2D/3D conversion, are original images from the stereo master: Dr. Zsolnai-Nagy Imre

To activate the "Anaglyph Frame" Lab from the menu Image, select "Special Functions" and then "Anaglyph Frame".

Types of Frames

To select the frame style use the drop-down menu "Mode" which initially appears as "Standard Mode".

"Mode Standard" creates a rectangular Frame whose inside is always transparent.

"Mode Ellipse" creates an elliptical Frame.

"Mode Rectangle" creates a rectangular Frame

"Mode Trapeze UP" creates a trapezoidal Frame, the vertex of which is up.

"Mode Trapeze Down" creates a trapezoidal Frame, the vertex of which is down.

Functions

To select the function to be applied to the image or frame use the selectors arranged vertically.

"Colours" shows a panel with which you can change the shade colours and the draw style .

"Frame colour 1" and "Frame colour 2" are the colours to draw the shades of the frame.
To change the transparency use the scroll bars just below the colour disc and highlighted by the red arrows.
The value "0" indicates that the transparency is total and therefore the selected colour will not be visible, while the value "255" means no transparency.
To select a colour, mouse click on the coloured disc. To change the brightness drag the red triangle.
If the brightness control is totally down all colours will appear black.
To select a pure colour click on the rectangles placed above the coloured disk.

The selector "Gamma" softens the gradient between the two colours.
The effect of "Gamma" is visible only when the transparency values of both colours is greater than 50.
The selector "Gamma" is visible only in "Standard Mode".

The selector "Sigma" focuses the gradient between two colours in a small space.

The scroll bar "Blend" changes the starting point of the gradient.

In the example below you can see the result obtained by varying the value of "Blend".

"BackColour" is used to determine the background colour. This colour is visible only when the image moves or you change the size of the canvas.
In the example below the gray is selected as backcolour.

Note
With the exception of "Mode standard" normally only one colour is used, which is selected in the left disc.
When you use a second colour this colour is faded with the first colour but also has an effect on the image.
This method of drawing allows the creation of graphic effects and decreases ghosting on choosing the appropriate colour or/and transparency.
In the example below white is used as the first colour and yellow as the second.

"Image position canvas size" shows a panel with which you can move the image inside the frame and determine the total size of the canvas.

"Border size" shows a panel with which you can add borders to the images.

This function is essential to create an area to expand the "Shift" or when wishing to create a "Pop-Up" image. You can also use this function to add an aesthetic finish.

The border colour can be changed with the selector "Colours".
The picture below highlights the possible constraints of this LAB regarding the various dimensions.

"Anaglyph shift" can independently move the "Shift" colour on both a single image and on the frame.
This LAB can operate with any combination of anaglyph colours. To set the colours from the menu "File" select "Preference\set anaglyph colours".

Through the "Shift" you can get anti-ghost frames similar to those created in the "Frame Shop" LAB and "Pop-Up" of many kinds.
Consult also the following documents (Italian text) "Frame Stereo" and ""Ghost e anag lyph".

"Frame Size" determines the thickness of the frame. This command is always visible and available.

"Px" and "Px" determine the centering point of the frame on the image. This command is not available in "Standard Mode".

The following image shows the effect generated by "PX" and "PY".

Examples

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