gd

I have a PNG and I'm trying to merge it on top of a JPG. With the following code $dest = imagecreatefromjpeg("example.jpg"); $src = imagecreatefrompng("example.png"); imagealphablending($dest, false); imagesavealpha($dest, true); imagealphablending($src, true); imagecopymerge($dest, $src, $src2x, $src2y, 0, 0, $src2w, $src2h, 100); header('Content-Type: image/png'); imagepng($dest, "user/".$imei."/".$picCount."_m"); imagedestroy($dest); imagedestroy($src); Results in the following I also tried a suggestion from a similar question which said to use 'imagecopyresampled' isntead of

I have an upload Api that as a response object delivers (along with other stuff inside a Json object) a base64 encoded jpeg image. I create the encoded image as so: $im; // gd image resource ob_start(); imagejpeg($im); $data = base64_encode(ob_get_clean()); The data then is put inside a form field using javascript and submitted. How can I create a GD resource from that again so that I actually can save that image as a file? Everything in PHP. You can use imagecreatefromstring() function: $data = base64_decode($_POST['image_as_base64']); $formImage = imagecreatefromstring($data); "String" does

I'm having troubles when trying to create an image using imagecreatefromjpeg using this Dockerfile to generate the container: FROM php:7.1-apache RUN apt-get update && \ apt-get install -y -qq git \ libjpeg62-turbo-dev \ apt-transport-https \ libfreetype6-dev \ libmcrypt-dev \ libpng12-dev \ libssl-dev \ zip unzip \ nodejs \ npm \ wget \ vim RUN pecl install redis && docker-php-ext-enable redis RUN docker-php-ext-install -j$(nproc) iconv mcrypt zip pdo pdo_mysql gd bcmath COPY ./containers/yii.conf /etc/apache2/sites-available/000-default.conf RUN for mod in rewrite headers; do a2enmod $mod;

I need to choose between either ImageMagick or GD library for the following image manipulation tasks: resizing images into multiple sizes watermarking images As you can see I don't need anything fancy. I'm sure both these tools can achieve them, so if one has more extra features than the other, I don't really care about. My main concern is performance and quality. Which of these 2 tools consumes less resources, is faster and produces better quality images? P.S. I need to use it with their respective PHP APIs. I would lean towards ImageMagick as far as image quality goes. It seems to produce

I compile my own PHP, partly to learn more about how PHP is put together, and partly because I'm always finding I need modules that aren't available by default, and this way I have control over that. My problem is that I can't get JPEG support in PHP. Using CentOS 5.6. Here are my configuration options when compiling PHP 5.3.8 : './configure' '--enable-fpm' '--enable-mbstring' '--with-mysql' '--with-mysqli' '--with-gd' '--with-curl' '--with-mcrypt' '--with-zlib' '--with-pear' '--with-gmp' '--with-xsl' '--enable-zip' '--disable-fileinfo' '--with-jpeg-dir=/usr/lib/' The ./configure output says:

I'm trying to use imagefttext. And I need to have GD library and/or freetype installed. I'm new to this kind of stuffs, How can I install GD library and freetype in Linux ? Installing GD : For CentOS / RedHat / Fedora : sudo yum install php-gd For Debian/ubuntu : sudo apt-get install php5-gd Installing freetype : For CentOS / RedHat / Fedora : sudo yum install freetype* For Debian/ubuntu : sudo apt-get install freetype* Don't forget to restart apache after that (if you are using apache): CentOS / RedHat / Fedora : sudo /etc/init.d/httpd restart Or sudo service httpd restart Debian/ubuntu :

I have a PHP website where people can fill out help-tickets. It allows them to upload screenshots for their ticket. I allow gif, psd, bmp, jpg, png, tif to be uploaded. Upon receiving the upload, the PHP script ignores the file extension. It identifies the filetype using only the MIME information, which for these filetypes is always stored within the first 12 bytes of the file. Someone uploaded several GIFs, which when viewed with a browser, the browser said it was invalid, and my virus scanner alerted me that it was a injection (or something like that). See below for a zip file containing

These all seem to do the same thing. What are the pros/cons of each. imagecopyresized() vs imagecopyresampled() vs imagecopy(). I'm resizing a user submitted image. So I have an image shell created with '$newImage=imagecreatetruecolor(250, 250)'. And now I want to copy the orginal image into the '$newImage' Orangepill imagecopyresized will copy and scale and image. This uses a fairly primitive algorithm that tends to yield more pixelated results. imagecopyresampled will copy and scale and image, it uses a smoothing and pixel interpolating algorithm that will generally yield much better results