How to adjust the color depth of X-ray film?

Not adjustable, the color depth of X-ray film reflects the different states of the body, which is an important reference index.

X-rays are imaged by film. When X-rays irradiate dense tissues, such as bones and muscles, X-rays are attenuated greatly, that is, a large number of X-rays are absorbed, so there are fewer X-rays on the film behind the human body, while low-density tissues, such as fat and chest, attenuate X-rays less, and a large number of X-rays enter the film through the human body, exposing the film.

Gray filter is to turn a picture into a gray image; Inverse filter inverts all visual attributes of the object, including color, saturation and brightness values; X-ray filter is to make an object reflect its contours and highlight these contours, which is the so-called "X" optical film.