php image processing

Site optimization can not only be set in the code, content is also the site of the most need to optimize one of the objects, and the image is the main content of the site. Image optimization Most need to deal with is to upload all the large images

Image processing: the implementation of watermarking and thumbnails (custom functions: watermark and thumbnail) code is a bit long, but not complex. Don't talk nonsense. paste the code: The code is as follows: /**********************************

Nonsense not to say, paste code: Copy CodeThe code is as follows: /************************************ Function: Watermark ($bigimg, $smallimg, $coord = 1) Role: Adding watermarks Parameters: $bigimg must be selected. Big picture--a picture to

Share a PHP implementation of the image processing class, you can set the text watermark and image watermark, etc., there is a need for friends reference.This section to share a picture processing class, simple implementation of the text watermark

Imagecolorsforindex () Imagecolorat () Draw a graphic on the picture $img =imagecreatefromgif ("./images/map.gif"); /** * Image Sharpening Processing * Edit by Bbs.it-home.org */ $red =

Imagecreatetruecolor () returns an image identifier representing a black image of the specified size.According to your php Tutorial and function definition in the gd version. For php 4.0.6, the function 4.1.x always exists.,*/$ Im =

This article provides the image processing class. What he can do is to generate a thumbnail of the image, add a watermark to the image, and obtain the image information. This is a simple and practical function */ The code is as follows:Copy code

The code is as follows:Copy code Header ("Content-type: image/jpeg ");// Load the image$ Imagen1 = imagecreatefromjpeg ("imagen1.jpg ");$ Imagen2 = imagecreatefromjpeg ("imagen2.jpg ");// Copy the image www.111cn.netImagecopy ($ imagen1, $ imagen2

Not to mention nonsense.Code:   If (move_uploaded_file ($ arrfile ['tmp _ name'], $ strpicname )){ Switch ($ fileext ){ Case ". GIF": // GIF $ Im = imagecreatefromgif ($ strpicname ); Break; Case ". PNG": // PNG $ Im =

CopyCode The Code is as follows: /** * Author: yagas * Email: yagas60@21cn.com */ Class Image { /** Class protection variable */ Protected $ th_width = 100; Protected $ th_height = 50; Protected $ Quality = 85; // Image Quality Protected $

The first step is to set the file MIME type and change the output type to the image stream. Default is HTML if not set.Header ("Content-type:image/png");The second step creates a blank graphics area$im = Imagecreatetruecolor (200,200);The third step

Copy Code code as follows: /** * Basic image processing, to complete the image indentation, watermark add * When the watermark map exceeds the target picture size, the watermark can be automatically adapted to the target image and reduce *

As a novice PHP site development, often easy to ignore the development of Web site URL (directory) planning work, when the development of PHP site types involving a large number of attachment upload, such as Picture class site, the early days if not

Picture clipping refers to a large background picture cropped out a designated area of the picture, the common application is in the user set personal avatar, can be uploaded from the picture, cut out a suitable area as their personal portrait

Adding a watermark to a picture is also a common feature in image processing. Because as long as the pictures you see on the page can easily get, you work hard to edit the pictures do not want to be taken away by others to use, so add a watermark

When working with images using the GD Library of PHP, you must manage the canvas. Creating a canvas is in memory to open a piece of storage area, later in PHP in the image of all operations are based on this cloth processing, Parliament is an image

In the use of PHP dynamic output beautiful images, but also inseparable from the setting of colors, like painting when you need to use the same color palette. To set the color of the image, you need to call the Imagecolorallocate () function to

Share The php multi-function Image processing class ,. The php multi-function Image processing class is shared. the examples in this article share the multi-function php Image processing class for your reference. the specific content is as follows:

Summary of common functions of the PHPGD image processing component. Summary of common functions of PHP image processing component GD-Overview PHP has a series of powerful graph processing functions which are included in the GD Library. these

PHP Image processing Components GD's common function summary--Overview PHP has a series of very powerful graphics processing functions, they are uniformly included in the GD library, these functions have basically met a network application of the