METHOD AND COMPUTER SYSTEM FOR CHECKING FILE-MAKING TIME BY COMPUTER

摘要

The invention discloses a method and a computer system for checking file-making time by a computer, and the method includes: a scanner TWAIN protocol interface is invoked to acquire original color data of a file to be checked and a sample file, and the making time of the sample file is known; the color sampling points in the original color data of the file to be checked are collected, and color index data of the file to be checked is calculated; the color sampling points in the original color data of the sample file are collected, and the color index data of the sample file is calculated; the color index data of the file to be checked is compared with the color index data of the sample file, and the making time of the file to be checked is determined according to the known making time of the sample file. The invention can, on the premise that the checked material is not destroyed, acquire the original color data of the file to be checked or the sample file via the computer, implement statistical analysis after implementing the collection of the sampling points in the original color data, and eventually obtain the making time of the file to be checked.