3D Images Red Blue

3D Images Red Blue

How do red and blue 3D glasses work?

Due to the distinct signal you get from a television screen, a unique form of 3D has to be utilized, where there are two images placed on the screen, one in blue or green, and the other in red. You then use certain glasses that have a red filter on one eye, and a blue filter on the other. Viewing the image through both these filters will remove one of the colors from each eye, only leaving the other. Thanks to the aforementioned binocular vision, the brain will fill in the perceived gaps in the image, leaving you with an image that appears to pop out from the screen. Keep in mind, however, that since there's such a limited color spectrum to this particular method of 3D, it's hard to have very distinct colors in your 3D movie. This was the favored method of 3D moviemaking when it had its heyday in the 1950s and 1960s, but has since fallen out of favor now that more innovative and quality technologies have been developed.

3D IN THE PAST

3D glasses with red and blue lenses are required in a 3D viewing experience because special photographs called anaglyph images are applied to it, creating an illusion of depth. In the past, two different cameras are used to produce anaglyph images, one having a red filter and the other one having the blue filter. Not long ago, filtering is done with an Adobe Photoshop or a similar processing program. To form an anaglyph image or a single picture, the images are combined. 3D glasses are used because without it, images will appear blurry and discolored in the naked eyes.

Our brains our tricked into seeing 3D image by just using red and blue lens because each eye sees a slightly different image. When our eye is covered by a red lens we see the red as white and when our other eye is covered by a blue lens we see the blue as black. This difference imitates what each eye would see in reality, as with most 3D technology.

3D Images Red Blue