Digital watermark processing method and device

• Main Authors: LIANG MIAO, ZHAO HUANFANG, ZHANG YANTANG
• Format: Patent
• Language: Chinese; English
• Published: 29.12.2020
• Subjects: CALCULATING; COMPUTING; COUNTING; HANDLING RECORD CARRIERS; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS; PRESENTATION OF DATA; RECOGNITION OF DATA; RECORD CARRIERS

The invention discloses a digital watermark processing method and device, and the method comprises the steps: obtaining an original document with a to-be-embedded digital watermark, determining a first row, a last row and an odd-numbered row of each page in the original document as fixed rows, determining an even-numbered row of each page as a moving row; recording a line spacing proportion valuebetween a moving line and a fixed line in each page of the original document, matching each bit value in the binary number of the target digital watermark with the moving lines appearing in sequence in the original document in sequence, and moving the moving line with the matching bit value of 1 upwards for a first distance; moving the moving lines with the matching bit values being 0 downwards bya second distance, so the target digital watermarks are embedded into the original document, and the target document is obtained after all the moving lines of the original document are traversed by the target digital watermar