The main function of Shenyang Liaoshitong health code is to gradually promote the "one-code-pass, one-code-pass" in the health industry and more scenes on the basis of "accurate code assignment and second-speed bright code".
Green code personnel can move freely under the premise of self-prevention and control and accepting body temperature examination, and no unit or personnel may restrict them without justifiable reasons.
Basic principles:
Run-length coding is also called RLE compression coding, where RLE is the abbreviation of run-length coding. This compression method is the simplest image compression method.
The basic principle of run-length coding is to find continuous repeated values in a given data image, and then replace these continuous values with two characters. For example, the data represented by a string of letters is "aaabbbbccccdddeeddaa", which can be represented as "3a4b4c3d2e2d2a" after run-length coding.
For digital images, some continuous areas of the same image have the same color, that is, in these images, many continuous scans have the same color, or many continuous pixels in the same scan line have the same color value. In this case, it is only necessary to store the color value of one pixel, pixels of the same color and the same position.