Moir is an optical illusion that can occur when two patterns with similar spatial frequencies are superimposed. It is often seen in digital images, where it can cause unwanted artifacts. There are several ways to avoid moir, including using anti-aliasing filters, reducing the resolution of the image, or changing the angle of the patterns.
Moir can be a serious problem in digital imaging, as it can make images appear blurry or distorted. It is important to be aware of the potential for moir and to take steps to avoid it when possible.
