Here’s exactly what you’re looking for in PHP: https://github.com/thephpleague/color-extractor Example : use League\ColorExtractor\Palette; $palette = Palette::fromFilename(‘some/image.png’); $topEightColors = $palette->getMostUsedColors(8);
Use this to add text to image (copied from PHP for Kids) <?php //Set the Content Type header(‘Content-type: image/jpeg’); // Create Image From Existing File $jpg_image = imagecreatefromjpeg(‘sunset.jpg’); // Allocate A Color For The Text $white = imagecolorallocate($jpg_image, 255, 255, 255); // Set Path to Font File $font_path=”font.TTF”; // Set Text to Be Printed On … Read more
I have installed php7, I did the following to solve exactly the same error sudo apt-get install php7.0-gd sudo apt-get install php7.0-intl sudo apt-get install php7.0-xsl
UPDATE: If you want to take advantage of Imagick (if it is installed on your server). Note: I didn’t use Imagick’s nature writeFile because I was having issues with it on my server. File put contents works just as well. <?php /** * * Generate Thumbnail using Imagick class * * @param string $img * … Read more
Check permissions on the .dll file to make sure the Apache user has read access to the file. Better change the permission of the [PHP]/extension directory. To change the permission Right click the file(s) or folder(s) Select “Properties” Select “Security” tab Click on “Edit” button. Change the permission of user to Full Control.
Most of the other answers refer to using various hashing functions. The question explicitly is asking about comparing the contents of the images, not about comparing the files. This means you end up having to actually understand the contents of the image. In PHP there are two extensions often used for this, ImageMagick and GD. … Read more
After imagecreatetruecolor(): <?php // … Before imagecreatetruecolor() $dimg = imagecreatetruecolor($width_new, $height_new); // png ?: gif // start changes switch ($stype) { case ‘gif’: case ‘png’: // integer representation of the color black (rgb: 0,0,0) $background = imagecolorallocate($dimg , 0, 0, 0); // removing the black from the placeholder imagecolortransparent($dimg, $background); // turning off alpha blending … Read more
If you are trying to generate thumbnails, you must first resize the image using imagecopyresampled();. You must resize the image so that the size of the smaller side of the image is equal to the corresponding side of the thumb. For example, if your source image is 1280x800px and your thumb is 200x150px, you must … Read more
From what I can tell, you need to set the blending mode to false, and the save alpha channel flag to true before you do the imagecolorallocatealpha() <?php /** * https://stackoverflow.com/a/279310/470749 * * @param resource $image * @param int $newWidth * @param int $newHeight * @return resource */ public function getImageResized($image, int $newWidth, int $newHeight) … Read more
imagealphablending( $targetImage, false ); imagesavealpha( $targetImage, true ); did it for me. Thanks ceejayoz. note, the target image needs the alpha settings, not the source image. Edit: full replacement code. See also answers below and their comments. This is not guaranteed to be be perfect in any way, but did achieve my needs at the … Read more