Anaglyph
Anaglyph
Anaglyph (/ænəɡlɪf/, from the Greek words ana meaning "again" and glyphe meaning "carve") is a type of stereoscopic 3D effect created by offsetting two images to create a depth perception. This technique is commonly used in 3D movies, print media, and digital media.
History
The concept of anaglyph images was first introduced by Louis Ducos du Hauron in the late 19th century. He was a pioneer in color photography and the stereoscopic technique.
Technique
Anaglyph images are created by using two differently filtered colored images, one for each eye. When viewed through the color-coded "anaglyph glasses", each of the two images reaches the eye it's intended for, revealing an integrated stereoscopic image. The visual cortex of the brain fuses this into the perception of a three-dimensional scene or composition.
Types of Anaglyph
There are several types of anaglyph images, including:
- Red-Cyan Anaglyph: This is the most common type of anaglyph image and is used in many 3D movies and print media.
- Green-Magenta Anaglyph: This type of anaglyph image is used in some 3D television broadcasts.
- Blue-Yellow Anaglyph: This type of anaglyph image is less common but is used in some 3D print media.
Related Terms
- Stereoscopy: The technique of creating or enhancing the illusion of depth in an image by means of stereopsis for binocular vision.
- 3D Film: A motion picture that enhances the illusion of depth perception, hence adding a third dimension.
- 3D Glasses: A device worn in front of the eyes to view anaglyph images in three dimensions.
External links
- Medical encyclopedia article on Anaglyph
- Wikipedia's article - Anaglyph
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