Question

What is a shadow? Write the characteristics of shadow.

Answer 1

Answer:

It is always black, regardless of the colour of the object used to make the shadow. It only shows the shape or outline of the object not the details. The size of a shadow varies depending on the distance between the object and the source of the light, and the distance between the object and the screen.

Answer 2

Explanation:

$\huge\mathfrak\blue{answer}$

⏩I'm wondering what basic characteristics of shadows are. I'm looking from a camera image/video processing point of view. I'm considering the case of an outside scene in direct sunlight.

⏩These are the characteristics I could quickly come up with, but I guess there are more.

⏩There are strong edges on the shadow borders

⏩The shadow is ‘darker’ than the surrounding area

⏩The shadow usually ‘deforms’ when an object is rotated

⏩Due to absence of the primary lighting in the shade, the color tends to be dominated mostly by the main diffuse lighting source (which is in most cases the sky --> blue)

⏩I'm wondering which other characteristics I might miss.