The document contains caracteru00ecsticas security that survive the scanning method to obtain a document comprises a security that is visu00ecvel latent image when the document is reproduced after having been made to scan by a scanner of a commercial bank revealed The.Test pattern to determine the frequencies of lines that survive and do not survive a scanning device and to determine the frequencies of lines of interference, interference and no interference of partial scanning device, method for determinau00e7 Frequencies of lines that will survive and do not survive a device for scanning.Method for making a document comprises a security device reproduzu00ecvel

摘要

"Document that contains caracteru00ecsticas security that survive the scanning method to obtain a document comprises a security that is visu00ecvel latent image when the document is reproduced after having been made to scan by a scanner of a commercial bank standards Will,Test pattern to determine the frequencies of lines that survive and do not survive a scanning device and to determine the frequencies of lines of interference, interference and no interference of partial scanning device, method for determinau00e7 Frequencies of lines that will survive and do not survive a device for scanning.Method for making a document reproduzu00ecvel comprising a safety device. A document comprises a security image latent which is visible when the document is reproduced after being made to scan by a scanner of a commercial bank pattern.The security image comprises a plurality of lines, dots or spots which have a frequency and a density such that the image is reproduced after being made to scan by the scanner pattern of commercial bank.A method for obtaining a document found that includes a safety device comprises the generation of the document by creating a document that contains the disu00f3sitivo security, scanning for a digital computer using a conventional scanner.And the conversion of the document in which it was made to scan a file of digital image that can be printed through a digital printer, a color copier, etc. a document comprises a security image that is not visible in the visible light, and visible when the document It is exposed to a predetermined type of light.The image is printed with a security ink visible only under one of UV light, infrared light, X-rays or gamma rays.