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PHP GD Replace Color


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This example shows how to replace color of an image in php gd.

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PHP GD Replace Color

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PHP GD Replace Color

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PHP GD Replace Color
<?php $image = "images.jpg"; $data = getimagesize($image... = imagecreatefromJPEG($image); $color = imagecolorallocate($im,hexdec(substr($hex,0,2...,$cloneH, $oldhex) ) imagesetpixel($im, $x, $cloneH, $color); } }  
 
php gd background color
<?php header("Content-type: image/png"); $width = 350; $height = 360; $im = ImageCreateTrueColor($width, $height); $red = ImageColorAllocate($im, 255, 0, 0); ImageFillToBorder($im, 0, 0, $red, $red
 
PHP GD image negative Color
<?php function negate($image) { if(function_exists('imagefilter... = imagecolorat($image, $x, $y); $rgb = imagecolorsforindex($index); $color... - $rgb['blue']); imagesetpixel($im, $x, $y, $color); } } return(true
 
PHP GD Colorization of image
<?php $im = imagecreatefromjpeg('images.jpg'); if($im && imagefilter($im, IMG_FILTER_COLORIZE, 0, 255, 0)) { echo 'Image successfully shaded green.'; imagejpeg($im, 'images.jpg'); imagedestroy($im); } else
 
PHP GD Color Transparency Using Alpha Blending
<?php define("WIDTH", 300); define("HEIGHT", 300); $img = imagecreatetruecolor(WIDTH, HEIGHT); $black = imagecolorallocate($img, 0, 0, 0); $yellow = imagecolorallocate($img, 0xFF, 0xFF, 00); $red
 
PHP GD captcha
initialize new GD image stream'); $background_color = imagecolorallocate($image, 255, 255, 255); $text_color = imagecolorallocate($image, 20, 40, 100... <?php session_start(); class CaptchaSecurityImages { var $font
 
PHP GD font size
<?php header ("Content-type: image/png"); $handle = ImageCreate (130, 50) or die ("Cannot Create image"); $bg_color = ImageColorAllocate ($handle, 255, 0, 0); $txt_color = ImageColorAllocate
 
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PHP GD Captcha Refersh
index.php <?php session_start(); if(isset($_POST['submit_x']) &...']; $y = $_POST['submit_y']; $rgb = imagecolorat($captcha_image, $x, $y); $color_tran = imagecolorsforindex($captcha_image, $rgb); $captcha_ok = ($color
 
PHP GD imagesetbrush() Function
<?php $php = imagecreatefromjpeg('im.jpg'); $im...); imagefilledrectangle($im, 0, 0, 299, 99, $white); imagesetbrush($im, $php); imageline($im, 50, 50, 50, 60, IMG_COLOR_BRUSHED); header('Content-type: image/jpeg
 
php gd Wbmp
<?php $im = imagecreatetruecolor(120, 20); $text_color = imagecolorallocate($im, 225, 0, 0); imagestring($im, 1, 5, 5, 'Roseindia', $text_color); imagewbmp($im, 'simpletext.wbmp'); echo "Wbmp file created
 
PHP GD draw line
<?php header ("Content-type: image/jpeg"); $handle = ImageCreate (130, 50) or die ("Cannot Create image"); $bg_color = ImageColorAllocate ($handle, 255, 0, 0); $txt_color = ImageColorAllocate
 
PHP GD Gradient Fill
<?php $image = ImageCreate(200, 200); for($i=0; $i<255; $i++) { $background_color = ImageColorAllocate($image, $i, $i, $i); } $text_color = ImageColorAllocate($image, 255, 255, 255); $tekst = "
 
PHP GD image to text
<?php $file = imagecreatefromjpeg("image1.jpg"); $bw = 0...-family:monospace; background-color: #000000;\">"; for ($y=0;$y<...;; } echo "<span style=\"color:#".$grid[$x][$y]."\"
 
PHP GD set image title
<?php $zend = imagecreatefromjpeg('images.jpg'); $im = imagecreatetruecolor(200, 200); imagesettile($im, $zend); imagefilledrectangle($im, 0, 0, 199, 199, IMG_COLOR_TILED); header('Content-Type: image/jpeg'); imagejpeg
 
PHP GD brush style coloring
<?php define("WIDTH", 200); define("HEIGHT", 200..., HEIGHT-1, IMG_COLOR_STYLED); imageline($img, 0, HEIGHT-1, WIDTH-1, 0, IMG_COLOR..., HEIGHT-31, IMG_COLOR_STYLED); imagerectangle($img, 50, 50, WIDTH-51
 
PHP GD tilled filled colors
<?php define("WIDTH", 200); define("HEIGHT", 200); define("T_WIDTH", 20); define("T_HEIGHT",20); $img...); imagefilledrectangle($img, 1, 1, WIDTH-2, HEIGHT-2, IMG_COLOR_TILED); header
 
PHP GD get gd information
<?php echo '<pre> '; print_r(gd_info()); echo '</pre> '; ?> After running the program you will get the following output Array ( [GD Version] => bundled (2.0.34 compatible) [FreeType Support
 
PHP GD Add Border to image
<?php $im = imagecreate(200, 60); $bg = imagecolorallocate($im, 225, 225, 225); $textcolor = imagecolorallocate($im, 0, 0, 255... = imagecolorallocate($im, 255, 255, 20); //Define border color Yellow $x = 0
 
About PHP GD
What is PHP GD Library GD: The GD graphics library is a developed by Thomas..., PHP, Tcl, Lua, REXX, Ruby etc.  The GD library is used to create...' and wrappers are available for Perl, PHP and other languages. GD can create images
 
PHP GD Library, PHP GD Tutorial
The PHP GD Library is one of the most used image-processing libraries used..., resize, crop image on the fly. In this section you will learn PHP GD Library in detail. Let?s get start with the PHP GD Library
 
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MySql find and replace string  How to find and replace string or special characters in MySql & PHP?   Find and Replace String PHP $result = preg_replace('/\band\b/i', 'foo', $subject
 
About PHP GD Arc
PHP GD arc Function <?php $img = imagecreate(200, 200); $red = imagecolorallocate($img, 255, 0, 0); $black = imagecolorallocate($img, 0, 0, 0);  imagearc($img, 100, 100, 150, 150, 0, 360, $black);  header("Content-type
 
PHP Array Replace
PHP Array Replace Sometimes we have to replace array values with given values, PHP provides array_replace() function to replace the values. array_replace... description of array_replace() is:  General Format array array
 
PHP GD image set pixel
<?php $x = 200; $y = 200; $gd = imagecreatetruecolor($x, $y...; 190); $red = imagecolorallocate($gd, 255, 255, 255); for ($i = 0; $i < 100000; $i++) { imagesetpixel($gd, round($x),round($y), $red
 
PHP GD imagesy
<?php $img = imagecreatetruecolor(300, 200); echo imagesy($img); ?> After running the program you will get the following output OUTPUT:200
 
PHP GD imagesx
<?php $img = imagecreatetruecolor(300, 200); echo imagesx($img); ?> After running the program you will get the following output OUTPUT :300
 
PHP Array Replace Recursive
PHP Array Replace Recursive: PHP provides array_replace_recursive() function to replace elements from passed arrays into the first array recursively. array... Returns the resulting array   PHP Array Replace Recursive
 
PHP GD Hue an Image
<?php $im = imagecreatefromJPEG('images.jpg'); echo 'Hue white& black:' . imagecolorclosesthwb($im, 116, 115, 152); imagedestroy($im); ?> After running the program you will get the following output OUTPUT:Hue
 
PHP GD rotate image
<?php $image = 'images.jpg'; $degrees = 180; header('Content-type: image/jpeg') ; $source = imagecreatefromjpeg($image) ; $rotate = imagerotate($source, $degrees, 0) ; imagejpeg($rotate) ; ?> After running
 
PHP GD crop image
<?php $src = imagecreatefromjpeg('image1.jpg'); $dest = imagecreatetruecolor(80, 40); imagecopy($dest, $src, 0, 0, 20, 13, 80, 40); header('Content-Type: image/jpeg'); imagegif($dest); imagedestroy($dest
 
PHP GD imagettfbox
<?php $im = imagecreatetruecolor(300, 150); $black...'; $bbox = imagettfbbox(10, 45, $font, 'PHP version ' . phpversion..., $black, $font, 'PHP version ' . phpversion()); $bbox = imagettfbbox(10
 
PHP GD fill image
<?php $im = imagecreatetruecolor(55, 30); $white = imagecolorallocate($im, 255, 255, 255); imagefilledrectangle($im, 4, 4, 50, 25, $white); imagejpeg($im, 'imagefilledrectangle.jpg'); echo("Image filled
 
PHP GD Merge Image
<?php $backgroundSource = "merge.jpg"; $feedBurnerStatsSource = "images.jpg"; $outputImage = imagecreatefromjpeg($backgroundSource); $feedBurnerStats = imagecreatefromjpeg($feedBurnerStatsSource
 
PHP GD image convolution
<?php $image = imagecreatefromjpeg('images.jpg'); $emboss = array(array(2, 0, 0), array(0, -1, 0), array(0, 0, -1)); imageconvolution($image, $emboss, 1, 127); header('Content-Type: image/jpeg'); imagejpeg($image
 
PHP GD filters
<?php try{ if(!$image=imagecreatefromjpeg('images.jpg')){ throw new Exception('Error creating image'); } if(!imagefilter($image,IMG_FILTER_COLORIZE,255,0,0)){ throw new Exception(" Can't filter image"); } header
 
PHP GD imagettftext
<?php header('Content-type: image/png'); $im = imagecreatetruecolor(400, 30); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0
 
PHP GD image filter
<?php $logo1 = imagecreatefromjpeg('images.jpg'); $logo2 = imagecreatefromjpeg('images.jpg'); $output = imagecreatetruecolor(imagesx($logo1) * 2, imagesy($logo1)); imagefilter($logo1, IMG_FILTER_PIXELATE, 3); imagefilter
 
PHP GD bold text
<?php header('Content-type: image/png'); $image = imagecreatetruecolor(400, 30); $red = imagecolorallocate($image, 255, 0, 0); $grey = imagecolorallocate($image, 128, 128, 128); $black = imagecolorallocate($image
 
PHP GD draw text
<?php header('Content-type: image/png'); $im = imagecreatetruecolor(400, 30); $white = imagecolorallocate($im, 255, 255, 255); $grey = imagecolorallocate($im, 128, 128, 128); $black = imagecolorallocate($im, 0, 0
 
PHP GD Grayscale
<?php $file = 'images.jpg'; header('Content-type: image/jpeg'); list($width, $height) = getimagesize($file); $source = imagecreatefromjpeg($file); $bwimage= imagecreate($width, $height); for ($c=0;$c<256;$c
 
PHP GD watermark an Image
<?php ini_set("display_errors", "1"); error_reporting(E_ALL); $image_src = 'images.jpg'; $watermark_src = 'watermark.jpg'; $opacity = 30; $padding = 20; $image = imagecreatefromjpeg($image_src
 
PHP GD art
<?php $width=200; $height=200; Header("Content-type: image/jpeg"); $im = imagecreate($width,$height); $white=ImageColorAllocate($im,255,255,255); $blue=ImageColorAllocate($im,1,18,250); $red=ImageColorAllocate
 
PHP GD graphics
<?php $img = imagecreate(250,80); $black = imagecolorallocate($img, 0, 0, 0); $white = imagecolorallocate($img, 255, 255, 255); $red = imagecolorallocate($img, 255, 0, 0); $green = imagecolorallocate($img, 0, 255
 
PHP GD circle
<?php $text = "RoseindiaRoseindiaRoseindiaRoseindiaRoseindia "; $image = imagecreatetruecolor(400,400); $white = imagecolorallocate($image,255,255,255); imagefill($image,0,0,$white); $red = imagecolorallocate
 
PHP GD Draw Rectangle
<?php header("Content-type: image/jpeg"); $width = 350; $height = 360; $im = ImageCreateTrueColor($width, $height); ImageAntiAlias($im, true); $white = ImageColorAllocate($im, 255, 255, 255
 
PHP GD line graph
<?php header("Content-type: image/png"); $arrval = array(12,123,21,32,77,85,166,176,163,121); $height = 260; $width = 330; $im = imagecreate($width,$height); $white = imagecolorallocate($im,255,255,255
 
PHP GD add text to image
PHP GD Add Text to Image Example <?php header ("Content-type: image/jpeg"); $string = "This is my text"; $font = 4; $width = imagefontwidth($font) * strlen($string) ; $height = imagefontheight
 
PHP GD Punch
<?php $image = imagecreatefromjpeg("images.jpg"); $displacement = displacement($image); $image = imagedisplace($image,$displacement); header("Content-type: image/jpeg"); imagejpeg($image); imagedestroy
 
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