Then take a screenshot of travel itinerary code according to the method of your mobile phone screenshot, and then send the screenshot to the owner in the print shop for him to print.
Run-length coding (RLE), also known as run-length coding, run-length coding and variable-length coding, is a statistical coding. The main technique is to detect repeated bit or character sequences and replace them with their frequency.
It is more suitable for binary image coding, but not for continuous tone image compression, such as photos in daily life. In order to achieve better compression effect, sometimes run-length coding is mixed with other coding methods.