The complex machines known as x-ray security scanners do not just have a generator but also strong software for imaging. They are also having features with which some users are familiar with like discrimination of material. This blog will be mainly focusing on one of such features which both new and old may not be familiar with which is bit imaging. So here it will be discussed that what is bit imaging and how it can impact the scanners and detectors and why is it important for screening security.

Bits and Pixels

Bitrate and pixels can together determine the accuracy of the images for the human eye. This is mostly true for x-ray images. With the images being clearer the image will be, the more likely it will be for the security personnel to review quickly and identify the threats hidden. The images are made with various bits and pixels. Each of the pixels can display only one color at a single time. The bitrate helps to determine the highest number of colors which can be displayed by a pixel and this is as a function of the number of bits, it is measured. In X-ray inspection systems, bits like other types of data can exist only in 2 states which are 1 or 0. Only two options of colors are displayed by 1-bit colors which are white or black. This is mostly because the bit only comes with 2 possible states which are identified either as 0 or 1. The options of colors are exponentially increased by 2 for the 2nd power. This occurs as there are now 2 bits which can each represent 1 or 0. All the possible combinations of those values can represent a new color. For this case, the different colors which the pixel can show are 00, 01, 10, and 11. All the bits added increases the color options by the factor of 2. So there are 8 options of color for 3-bit and 16 in the case of 4-bit. Each additional bit can add more options of color to the image of the leaf that presents clearer and truer depictions of the colors. The 24-bit is considered as the ‘True Color’ as the human eye can only see around 10 million colors. Over 16 million colors are therein 24-bit color. So it can be seen that this one has more colors than the human eye can ever recognize. So, anything more than 24-bit color tends to be unnecessary. Adding to that, every extra bit means that the images are having more data and need much increases capacity of storage. This is an amazing feature for modern x-ray security scanners.

X-Ray Security and Bit Imaging

Security and medical x-rays emphasize bit imaging in various ways. As the medical x-rays are shown with the help of images of gray-scale bit imaging shows the number of gray tones which can be displayed by a pixel. This helps the medical personnel for seeing the variations in thickness, shape, and composition of the object which allows them to analyze the images in a much better way and diagnose the possible issues of health. X-ray security scanners are capable to show a wide range of colors. Mainly the units of Astrophysics can utilize the 14 and 12-bit imaging. But the ability for showing all these colors does not directly impact the discrimination of material and the imaging color which is used in these scanners. This is as the colors displayed which are displayed with the use of 6- and 8-Color Imaging of Astrophysics that uses the atomic numbers of the object to discriminate the material. In x-ray security scanners, higher bit imaging has a larger impact on white and black images. Higher bit imaging offers higher contrast sensitivity levels. This helps the security personnel more clearly differentiating the thickness, shape, and composition of the objects that are screened. This becomes very important when the personnel is trying to identify the threats. Clearer images are made due to increased contrast of the image which helps for ensuring that the personnel can isolate and locate hazardous materials confidently and quickly.

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