Can the security machine find out exactly what's inside?

All objects passing through the X-ray machine will have images on the computer, showing the outline and color of the objects. The color displayed on the monitor reflects the density, quality and quantity of the object. Therefore, the quality of the object can be evaluated according to the depth of the image color.

Light yellow is generally the color displayed by single clothes, thin plastic and several sheets of paper.

Orange is generally the color displayed by soap, soap, explosives, drugs, wood products and leather products.

Dark orange, usually a lot of books, paper, RMB, high-concentration liquid, big bags of rice noodles and so on.

Blue is the color displayed by inorganic substances such as copper, iron and zinc. Thick cables, electric shocks, bullets, guns and knives show different shades of blue. Green is the color of the mixture, and stainless steel products and cables show different shades of green. Red is the color of impenetrable objects, mainly heavy metals and thick objects.

Comparison of photos of articles before and after passing through X-ray machine;