Source: --- Bo Xiaochen Shen Lin Cheng Changwensen
---- Currently, digital watermarking software has both commercial products, as well as free software for research.
Commercial software
---- Companies providing commodity digital watermark software mainly have some:
----1. Digimarc Company (http://www.digimarc.com)
---- US Digimarc was established in 1995, is the first company engaged in digital watermark software.
First, its products mainly facing multimedia copyright protection, certification and e-commerce, etc., products include:
---- · Picturemarc
---- Picturemarc is with Adobe Photoshop, Corel Draw, Corel Photo Paint,
Micrografx Wedbtricity, Micrografx Graphics Suite and Micrografx Picture
Image processing and graphics plotting software bundled by Publisher's digital watermark plug-in. PictureMarc can be map
Add the copyright ID, the issuance ID and the copy right ID.
---- · Readmarc
---- Readmarc is a digital watermark reader that is used with PictureMarc, it is a free
Loaded free software can run on Windows 95 / NT and Macintosh PowerPC platforms.
---- · Batchmarc Pro
---- Batchmarc Pro is designed to add image watermarks to batch.
---- · Digimarc Watermarking SDK
---- Digimarc Watermarking SDK is a digital watermark software development package, providing C / C calls
The interface can achieve embedding, detection and reading of image watermarking.
---- · Marc Center
---- Marc Center is an Internet-based watermark certification service system that can manage large-scale
Copyright ID database and offers a variety of online services.
---- · Marc Spider
---- Marc Spider is a watermark agent, which can automatically be automatically used according to user copyright management information.
Search for illegal copies of digital works on the Internet, then provide the relevant URL to the user in the form of a report.
---- 2. Signum Technology (http://www.signumtech.com/index_ns.html)
---- This British company was founded in 1997, the SURESIGN series digital watermark products developed mainly
Digital photography, multimedia, network issuance, e-commerce and medical imaging. Signum watermark products include
Two series: SuResign Fingerprints and Suresign Fingerprint Detection. among them,
The SuResign Fingerprints Series is a watermark embedded software, SURESIGN FingerPrint Detection Series
Free watermark detection software.
---- SuResign Fingerprints Series included digital watermark inserts developed for Photoshop Suresign
Writer, Batch Watermark Writing Software SuResign Pro and Watermark Develop Capsule SURESIGN SDK.
---- Suresign FingerPrint Detection Series included watermark detection for Photoshop development
SuResign Detector and the Watermark Detection Plugin Developed for Netscape Navigator CyBersleuth.
---- SURESIGN Watermarking Products Allows users to embed the author identity and work identify two watermark information. Figure
Aspects, Suresign does not have special requirements, support true color, grayscale, and index color images. In storage format
Aspect, SURESIGN supports a JPEG format that compresses less than 30. SuResign can also read watermarks from the scanned image of the print job.
---- 3. Aliroo Co., Ltd. (http://www.aliroo.com)
---- The company was established in December 1993, mainly developing a variety of password-based network security products and numbers.
Watermarking software. Aliroo has reached a series of technical agreements with Digimarc, which has developed digital watermarking software.
Scarlets can use Digimarc's certification services directly.
---- Scarlet provides the so-called "descarring" function, and after confirming the user password, you can eliminate water
Print and restore the original image. This feature is unattended in digital watermark products.
---- 4. Alpha Technology Company (http://www.generation.net/~pitas/)
---- Alpha is specially engaged in computer graphics, image processing, computer vision and other professional software
The company has developed the digital watermark product, Eikonamark, has many features, very suitable for digital images.
Copyright protection.
---- Eikonamark solves multiple image watermark problems, you can add more than 50 different water
Print. Of course, each watermark will damage the quality of the image to a certain extent. Eikonamark also allows you to add
The watermark image is saved as a high compression ratio JPEG format, and the original image is not required when decoding.
---- 5.Mediasec Technology (http://www.mediasec.com)
---- The company is a professional information hidden technology company, its development of the SYSCOP series of products mainly
To digital watermark, concealed identification, and concealed communication. The most prominent feature of the SYSCOP series is allowed in the image
(PPM / PGM / PBM, GIF, TIFF and JPEG format) and video signals (MPEGI and MPEGII) are hidden
Information from various lengths.
---- Syscop Series include watermark development kits SYSCOP API, Watermark embedded tool Syscop Writer, Water
Print Batch Tools Syscop Batch and Watermark Reading Tools Syscop Reader, these products can be available in Unix
(Sun Solaris, HP-UX, SGI IRIX) and Windows (NT 3.51, NT4.0, 95/98)
Row.
Software for research
---- There are many digital watermark software written for the verification algorithm, some of which are very
Valuable design ideas, high reference value. The following columns are a relatively typical software:
---- 1. STools
(ftp://idea.sec.dsi.Unimi.it/pub/
Security / crypt / code / stools4.zip)
---- S-Tools is a time (empty) domain digital watermark software, support. Audio file and .gif, .BMP
Digital image files in formats. S-Tools Processing 24-bit true color image is very fast, for index color images,
Depending on the user's choice, you can restore a true color image processing or add a watermark by cutting the number of colors.
----2. Hide and seek
(4.1: ftp://ftp.csua.berkeley.edu/pub/
Cypherpunk / Steganography / STEGRAPHY /
HDSK41B.ZIP)
(5.0: http://www.rugeley.demon.co.uk/
Security / hdsk50.zip)
(Ver1.0 for Windows 95):
http://www.cypher.net/products/)
---- Hide and seek is a digital watermark software for the image, which can only handle 256 color images, and the image size is limited to 320 x 320, 320 × 400, 320 × 480, 640. × 400, 1024 × 768.
---- 3. Hide4pgp
(http://www.rugeley.demon.co.uk/
Security / hide4pgp.zip)
---- Hide4PGP is a typical digital watermark software using the LSB algorithm for 8-bit or 24-bit BMP image.
Embed a watermark. For 24-bit true color images, the optional hidden digits are 1, 2, 4, and 8. For 8-bit index
Image, the noise introduced by HIDE4PGP is obvious.
---- 4. Stegdos
(ftp://ftp.csua.berkeley.edu/pub/
Cypherpunks / Steganography / STEGANOGRAPHY /
Stegodos.zip)
---- Stegdos is the early operation of the watermark software under DOS, which is also the LSB method, the effect is relatively poor.
---- 5. White Noise Storm
(ftp://ftp.csua.berkeley.edu/pub/cypherpunks/
Steganography / wns210.zip)
---- White Noise Storm is a typical digital watermark software based on extended spectrum technology, hiding effect
Ok, but the amount of data is small.
---- 6. Mandelsteg
(ftp://idea.sec.dsi.Unimi.it/pub/
Security / crypt / code /)
---- Mandelsteg is a time (empty) domain digital watermark software for source code.
---- 7. JSteg-Jpeg
(ftp://ftp.funet.fi/pub/crypt/
Steganography)
---- JSteg -jpeg is a digital watermark software specially developed for JPEG image format, and watermark is hidden in DCT transform domain.
on. It is difficult to see the traces of hidden data on the image, but the DCT spectrum before and after the watermark is added.
It is found that the DCT transform coefficient of the image after the watermark has a significant step effect.
----8. Unzign
---- (http://altern.org/watermark/)
---- Unzign is an early (1997) Digital Watermark Test Tool.
---- 9. Stirmark
(http://www.cl.cam.ac.uk/~fapp2/
Watermarking / image_watermarking /
Stirmark)
---- Stirmark is a very famous test tool in the field of digital watermark research, developed by Cambridge University,
The version update is very fast. Stirmark can test the robustness of the watermarking algorithm from many aspects for testing attack hands
Segments include linear filters, nonlinear filters, shear / splicing attacks, synchronous damage attacks, etc. Many public published
Digital watermarks' papers are based on Stirmark's attack results as standards for the quality of the watermarking algorithm.
