A stereogram is an optical illusion of depth created from flat, two-dimensional image or images. Originally, stereogram referred to a pair of stereo images which could be viewed using stereoscope. Other types of stereograms include anaglyphs and autostereograms. Stereogram was discovered by Charles Wheatstone in 1838. He found an explanation of binocular vision which led him to construct a stereoscope based on a combination of prisms and mirrors to allow a person to see 3D images from two 2D pictures.[1] Oliver Wendell Holmes, Sr. invented an improved form of stereoscope in 1861, which had no mirrors and was inexpensive to produce. These stereoscopes were immensely popular for decades.[2]
Stereograms were re-popularized by the creation of autostereogram on computers, where a 3D image is hidden in a single 2D image, until the viewer focuses the eyes correctly. The Magic Eye series is a popular example of this. Magic Eye books refer to autostereograms as stereograms, leading most people to believe that the word stereogram is synonymous to autostereogram.[3] Salvador Dalí created some impressive stereograms in his exploration in a variety of optical illusions.[4] One of the most common ways to create a stereogram is to hold both of your index fingers in front of you with the tips touching and cross your eyes to create the illusion that you have an extra finger.
stereogram merupakan salah satu ilusi optik yang menyajikan gambar 2D yang sepertinya terlihat biasa saja atau bahkan abstrak ga jelas, tapi sebetulnya dibalik gambar tersebut ada bentuk tersembunyi yang terlihat seperti gambar 3D, seolah-olah ada objek dalam ruang dibalik gambar tersebut, yang sudah bisa melihat gambar stereogram tentu ada kesenangan tersendiri menebak bentuk apa dibalik gambar tersebut.
cara melihat gambar stereogram :
lihat gambar stereogramnya.
kemudin kaburkan pandangannya, melamun lah/menerawang tapi tetap fokus, dan objek gambar 3D akan terlihat dengan sendirinya.
belum berhasil?? coba aja lagi… lagi dan lagiii
di percobaan pertama memang sedikit sulit dan akan membuat mata lelah, kalo udah biasa anda akan dapat dengan mudah melihat gambar stereogram tanpa membuat mata merasa lelah… dan percaya aja nanti juga bakalan ketagihan deh kalo udah bisa ngeliat gambar stereogramnya..
contohnya gambar 1 dibawah ini terlihat seperti gambar abstrak…. tapi sebetulnya dibalik gambar ini terdapat gambar objek Cross 3D seperti gambar 2.
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gambar 1. gambar stereogram berbentuk Cross 3D
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gambar 2. penampakan 3D dibalik gambar abstrak
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sudah bisa melihat gambar Cross 3D digambar atas??? kalo sudah GAMBAR APAKAH INI????????
gambar 3. gambar apakah ini?????????
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gambar 4. 3D strowberry yang bakalan bikin ngiler
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gambar 5. 3D kucing
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