The image is an optical illusion, specifically a numerical optical illusion or an eye test that challenges viewers to find hidden numbers within a pattern.
Purpose:
These illusions test visual perception and contrast sensitivity, revealing how well your eyes can differentiate between an object and its background.
How it works:
The hidden numbers are subtly integrated into the pattern, often using variations in contrast or subtle shifts in lines or shapes, making them difficult to spot at first glance.
Example:
In this particular image, what is visible is the hidden number, which is visible to people with good contrast sensitivity.
Engagement:
Such puzzles are popular online and serve as a fun way to engage cognitive functions and enhance mental alertness.
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