digital watermarking

Reprinted from:http://www.shidz.com/gongshangju/show.jsp?id=20040331151391Digital cameras are getting closer, and people are starting to learn more about digital cameras. Believe that every user has this feeling, buy digital camera, the face of the propaganda material on that many of the professional terminology, not much is their own understanding, and more time to listen to the sales staff of the explanat

Sometimes you need to add a watermark to a website when uploading an image. The watermark can be divided into a text watermark and an image watermark. Sometimes you need to add a watermark to a website when uploading an image. The watermark can be

Ec (2); & lt ;? PhpprintbreviaryImg("imageimg.gif & quot;, & quot; ss & quot;, & quot; 35 & quot;, & quot; 22 & quot;); functionPrintBreviaryImg ($ spathimg, $ photoname, $ simgwidth, $ simgheight) {& nbsp; if (fi script ec (2); script

String bg_filename = "D: // temptest // bg.jpg "; String original_filename_500 = NULL; String watermark_filename = "D: // temptest // bokee.png "; Final int mark_h = 15; // watermark height Final int no_mark = 100; // The height or width of the

PHP image watermark implementation method ,. PHP image watermark implementation method. This article describes how to add a PHP image watermark. For your reference, see phpechoimg_water_mark (2008112023204423477 PHP image watermark implementation

A basic class of C # write image processing, including obtaining or setting the image path to be modified, obtaining or setting the image path (watermark image) in the image), get or set the right margin of the watermark in the modified image, get

Introduction: this is an image watermark.ProgramThe details page of PHP, related knowledge, skills, experience, and some PHP source code. Class = 'pingjiaf' frameborder = '0' src = 'HTTP: // biancheng.dnbc?info/pingjia.php? Id = 326933 'rolling = '

Text watermark: Copy codeThe Code is as follows: $ w = 80; $ H = 20; $ Im = imagecreatetruecolor ($ w, $ h ); $ Textcolor = imagecolorallocate ($ im, 123, 12,255 ); $ White = imagecolorallocate ($ im, 255,255,255 ); $ Gray = imagecolorallocate ($ im,

/*************************************** *********************** Parameter description:$ Max_file_size: size limit of the uploaded file, in bytes$ Destination_folder: File Upload path$ Watermark: whether to add a watermark. (1 indicates adding a

This article mainly introduces how to add watermarks to different positions in the image color field in PHP. it involves some techniques related to using the MagickWand module in php to add watermarks to images, which is of great practical value,

I have never been familiar with PHP Object processing. I used to find a manual when I was using it. Today, someone asked questions about watermarks at the phpchina forum. I just want to learn about them, so I studied how to implement image

When uploading images to push and expand websites, we may add watermarks to images or scale down the images. The following Code provides this function. When uploading images to push and expand websites, we may add watermarks to images or scale down

Demo: The code is as follows:Copy code // Load the class library fileRequire_once 'path/to/ThumbLib. inc. Php ';// Instantiate the class library. The address of the image you want to process can be a network address or a local address.$ Thumb =

Case one: Video watermark in black at video 1, go to the video watermark must be a tool, we download a "Beaver wo all-in-one Video Converter" In the computer and install. 2, after we find the software "video editing", you will see the "cut" as

As more and more people send confidential information via email, it is increasingly important to ensure that documents sent in emails are not forged. At the same time, it is equally important to ensure that the sent email is not intercepted or accessed by anyone other than the recipient. By using Outlook Express's "Digital logo", you can prove your identity in electronic transactions, just as if you had to present a valid credential when paying a chec

Android Digital Signature Learning notesIn an Android system, all applications installed to the system must have a digital certificate that identifies the author of the application and establishes a trust relationship between the applications, if a permission ProtectionLevel is signature, Then only applications that have the same digital certificate as the progra

This article mainly explains the contents of the APK digital signature, and introduces the way of the APK debug mode and the digital signature in the release mode. This article transferred from: http://www.jizhuomi.com/android/environment/293.html 1. What is a digital signature A digital signature is a sign for your pr

server-side validation of the client certificate, and in the negotiation of symmetric password scheme, symmetric call key, the server sent to the customer is no encryption (this does not affect the SSL process security) password scheme. In this way, the two sides of the specific communication content, is to add over the dense data, if there is a third-party attack, access to only encrypted data, the third party to obtain useful information, it is necessary to decrypt the encrypted data, this ti

The scaling of digital images is a very interesting problem, but also a seemingly simple, but some complex problems. Many friends after having a certain basic knowledge of computer graphics programming, they can design some simple bitmap scaling algorithm. In the field of computer graphics and digital image processing, the problem of digital image scaling has bee

As a popular open-source system, the Android mobile phone operating system plays an important role in the mobile phone field. In the Android system, all applications installed on the system must have an Android digital certificate used to identify the author of the application and establish a trust relationship between the application, if the protectionLevel of a permission is signature, only applications with the same