Perception illusion of Human Vision

1. The famous linear band phenomenon Mach Band Continuous color-changing splines generate an obvious segmentation line on the adjacent boundary in the middle. These hidden bands do not actually exist. They are produced by human eyes and are the response of the border of Different Brightness areas in human eyes. Generally, human eyes can only perceive 32 levels of gray scale, which is equivalent to a brightness of 5 digits. It is difficult to distinguish multiple eyes. 2. zollner risk sion places small or small horizontal lines on parallel vertical and horizontal lines. It looks like a human eye, these vertical lines will become skewed. 3. ebbinhouse illusion Ebbinghaus sion is enclosed in a rectangle of a white background, with a small circle a surrounded by several smaller circles. In the area next to these circles, there is a circle B larger than a or as large as a, surrounded by several larger circles D on the periphery of B. We can see from the eyes that the center garden a surrounded by small circles looks bigger than the center garden B surrounded by large circles. 4. Check my pencil with two fingers holding a pencil and swinging up and down. This straight pencil looks bent. 5. circles of different colors on the benhem Disc