![]() Which brings us back to the first explanation I gave you at the beginning of this page: the illusion is partly due to modal completion effect. This is how the pattern is encoded through the multiple layers of our brain. If we continue the operation, we obtain even more smoother patterns with apparent blank rays (fig. A with a photo editing filter, we obtain smoother patterns that show ‘subliminal’ radial beams (fig. If we heavily remove the noise from the geometric patterns in fig. These Op Art works are available as prints and canvases from my official online gallery.īut why do we see those illusory vibrating / scintillating rays in this kind of patterns? Probably because of their hidden structure. Ghost Color Variant: The shimmering blue and yellow rays of the rose-window-like patterns shown below are a construct of your mind (enlarge to see the effect). I have experimented with many distinct pattern variants that produce illusive scintillating radial beams, as showcased below. ![]() The scintillating effect is more apparent on the second variant. This animated version from Youtube features a rotating white pattern on a black background followed by a rotating black pattern on a white background. With the power of your mind, you can make the geometrical pattern rotate clockwise or counter-clockwise (but when the pattern rotates clockwise, you will see the illusive radial beams rotate counter-clockwise, and vice-versa). The animated version of the illusion is more striking. But I discovered that when you turn the grid 45 degrees an additional visual illusion appears: you may perceive a swarming of orthogonal darker lines! As if the opposite corners of each square are creating illusory flashing diagonals. The illusion is characterized by ghostlike gray blobs perceived at the intersections of a white grid on a black background. The Hermann grid illusion is an optical illusion reported by Ludimar Hermann in 1870. I designed this illusion just by turning 45 degrees the Herman grid and then by applying a polar transform. This illusion is a variant of the Herman’s scintillating grid illusion. The Art of the Illusion: Deceptions to Challenge the Eye and the Mind Hardcover Jby Terry Stickels (Author), Brad Honeycutt (Author), Scott Kim (Foreword) 45 ratings Hardcover 13.82 27 Used from 1.46 1 New from 49.95 Optical illusions intrigue the mind and delight the eye. In the picture you may see ghostlike dark radial beams. I would like to discuss about one of my oldest illusions I created in the 90s. Such figures may also appear brighter than the background, as shown by the Ehrenstein illusion below. Illusory “figures” depend partly in regular ‘gaps’ in the printed figure (modal completion phenomenon). ![]() This extraordinary and informative guide to all kinds of artistic trickery will satisfy scholars as well as everyday fans.SCINTILLATING STARBURST: SEEING RAYS THAT AREN’T THERE… The book also has examples of amazing street art including subway graffiti and a sidewalk painting that makes pedestrians think twice. Escher’s magical and mathematically precise drawings the seemingly undulating paintings of Bridget Riley the manipulated photography of Andreas Gursky Duane Hanson’s eerily lifelike sculptures JR’s larger-than-life portrait photographs and George Rousse’s mind- bending constructions. It also features work from the 20th and 21st centuries, including Rene Magritte’s classic surrealist works M. Beautifully reproduced, the images featured in the book includes centuries-old work such as the scenery at the Teatro Olimpico in Vicenza, Italy, and the ceiling frescos at the Wurzburg Residence in Germany, that showcase processes such as trompe l’oeil and anamorphosis. This spellbinding look at the history and development of illusionistic art reveals wide-ranging techniques that have piqued the public’s fascination with this medium. ![]()
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