Your perception of image eye tricks relies on your brain's discernment of levels and layering.
Visual tricks with images and words are fun and mesmerizing amusements. Optical illusions such as word and color jumbles, puzzle pictures, stereograms and dot images manipulate your perceptions through an assortment of visual patterns. Common visual patterns use colors, words, shapes and depth to alter your sensory perception, making it harder for your brain to grasp the actuality, or actualities, of presented or hidden images or words. Eye tricks can be enjoyable to experience on your own or in groups of friends for perception comparisons.
Puzzle Pictures
These optical illusions use images to bewilder your perceptions. Puzzle pictures that use shading patterns can lead you to perceive the puzzle as one particular image, which leaves you searching for the alter image. These puzzles are usually black and white and are shaded into three sections. Other puzzle pictures are crafted so that one of two images can be seen immediately; the image that is first visualized is completely dependent on the participant's perception. The most common example of this puzzle is the "Old or Young" image trick, which can be found in color or black and white. This kind of puzzle can be fun to test with multiple people, as you can compare immediate perceptions with one another.
Stereogram Illusions
Stereogram illusions manipulate your visualization of three-dimensional "hidden" images of words or shapes within a two-dimensional image by layering repeating patterns or dots in a variety of depth maps. Custom stereogram creators at eyetricks.com generate these eye tricks using stereogram software that slice given images front to back into 256 layers and then place each layer into charted depths. The slight shifts of each image's depth map are what the brain perceives and uses to form the hidden three-dimensional object. In order to see these shifts and their created three-dimensional object, participants must place their face as close to the stereogram as possible and focus past the image as they slowly back away.
Word And Color Jumble
Word and color jumbles are common eye tricks that exploit your perception by listing five common colors in clear text and coloring them contrasting shades. For example, the word "red" could be shaded the color blue, the word "green" could be shaded the color orange, and so on. The eye trick participant must read the list out loud, stating the colors of the text rather than the actual words, at the fastest pace possible. Participants will find it difficult to ignore the words and focus strictly on their shading during reading.
Dot Images
Dot images are typically white square or rectangular planes that are covered in seemingly random displays of small red or black dots and semicircle-like marks. Contrary to initial observation, these displays of dots and marks are actually fashioned in patterns that form illustrations when viewed from a distance. Participants can experience this eye trick by viewing the dot image from a close range and then slowly backing away to observe the hidden illustration gradually form more clearly from increasing distances.