By vantal Common bar code scanners are generally composed of light source, optical lens, scanning module, analog-to-digital conversion circuit and plastic casing.Therefore, this is the choice barcode scanner module The reason, there is no denying its positive impact. https://www.edoo-iot.com/
It uses photoelectric elements to convert the detected optical signals into electrical signals, and then converts the electrical signals into digital signals through an analog-to-digital converter and transmits them to a computer for processing. When scanning an image, after the light source illuminates the image, the reflected light converges on the scanning module through the lens, and the scanning module converts the light signal into an analog-to-digital signal (that is, voltage, which is related to the intensity of the received light).
and points out the gray level and dark area of the image. At this time, the analog-to-digital conversion circuit converts the analog voltage into a digital signal and transmits it to the computer. The color is quantized by RGB of 8, 10 and 12 bits, that is, the signal is processed into the image of the above bits and output. If there are higher quantization bits, it means that the image can have richer levels and depths, but the color range has exceeded the recognition ability of human eyes.
It can be seen that the high-digit barcode scanner can achieve the effect of smooth color connection, so that more picture details can be obtained.