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Displaying 1 - 50 of about 3992 Related Tutorials.
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 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
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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
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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
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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
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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
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PHP GD fill image
<?php
$im = imagecreatetruecolor(55,
30);
$white...);
imagejpeg($im,
'imagefilledrectangle.jpg');
echo("Image
filled... running the program you will get the following output
output: Image filled
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PHP GD image filter
<?php
$logo1 = imagecreatefromjpeg('images.jpg');
$logo2 = imagecreatefromjpeg('images.jpg');
$output = imagecreatetruecolor(imagesx($logo1)
* 2...);
imagedestroy($logo1);
imagedestroy($logo2);
header('Content-Type:
image/jpeg
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PHP GD image set pixel
<?php
$x = 200;
$y = 200;
$gd = imagecreatetruecolor($x,
$y...'])
/ 2;
}
header('Content-Type:
image/png');
imagepng($gd);
?>
After...; 190);
$red = imagecolorallocate($gd,
255, 255,
255);
for ($i
= 0;
$i
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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
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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
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PHP GD Image Resize
<?php
$file = 'images.jpg';
$save = 'new.jpg';
list($width... = imagecreatetruecolor($modwidth,
$modheight) ;
$image = imagecreatefromjpeg($file)
;
imagecopyresampled($tn,
$image, 0,
0, 0,
0, $modwidth,
$modheight
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PHP GD copy of image
<?php
$src = imagecreatefromjpeg('images.jpg');
$dest = imagecreatetruecolor(80,
40);
imagecopy($dest,
$src, 0,
0, 20,
13, 80,
40);
header('Content-Type:
image/jpeg');
imagejpeg($dest);
imagedestroy($dest
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PHP GD flip image
<?php
$image =
imagecreatefromjpeg("images.jpg");
$image =
flip($image,1,1);
header("Content-type:
image/jpeg");
imagejpeg($image);
imagedestroy($image);
function flip($i,$h=1,$v=0)
{
$width =
imagesx
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PHP GD image grayscale
<?php
$source_file = "images.jpg";
$im...*$imgh))
{
echo "The
image is grayscale.";
}
else
{
echo "The
image is NOT grayscale.";
}
?>
After running the program you
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PHP GD text on image
<?php
header("Content-Type:
image/jpeg");
$im = ImageCreateFromjpeg("images.jpg");
$black = ImageColorAllocate($im,
255, 255,
255);
$start_x = 10;
$start_y = 20;
Imagettftext($im,
12, 0,
$start
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PHP GD image to text
<?php
$file =
imagecreatefromjpeg("image1.jpg");
$bw =
0...);
}
$image =
imagecreatetruecolor($full_x,
$full_y);
imagecopyresized($image,
$file, 0,
0, 0,
0, imagesx($image),
imagesy($image),
imagesx($file
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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 dynamic image creation. GD is an open source
code library and written in 'C
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PHP GD image negative Color
<?php
function negate($image)
{
if(function_exists('imagefilter'))
{
return imagefilter($image,
IMG_FILTER_NEGATE);
}
for($x
= 0;
$x < imagesx($image);
++$x)
{
for($y
= 0;
$y < imagesy($image);
++$y)
{
$index
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PHP GD Merge Image
<?php
$backgroundSource = "merge.jpg";
$feedBurnerStatsSource = "images.jpg";
$outputImage = imagecreatefromjpeg...,$feedBurnerStatsX,$feedBurnerStatsY,100);
header('Content-type:
image/jpeg
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PHP GD image gamma correct
<?php
$im = imagecreatefromjpeg('im.jpg');
imagegammacorrect($im,
1.0, 1.537);
imagejpeg($im,
'php_gamma_corrected.jpeg');
echo("Image
corrected and saved successfully.");
imagedestroy($im);
?>
After
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PHP GD Set image brightness
<?php
$im = imagecreatefromjpeg('brightness.jpg');
if($im
&& imagefilter($im,
IMG_FILTER_BRIGHTNESS, 100))
{
echo 'Image...);
}
else
{
echo 'Image
brightness change failed.';
}
?>
After
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PHP GD filters
<?php
try{
if(!$image=imagecreatefromjpeg('images.jpg')){
throw new Exception('Error
creating image');
}
if(!imagefilter($image,IMG_FILTER...("Content-type:
image/jpeg");
imagejpeg($image);
imagedestroy($image
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PHP GD get image dimensions
<?php
if($img
= @GetImageSize("images.jpg"))
{
echo "image exists ,
here is some info<br>";
echo "width = $img...
{
echo"image does not
exist";
}
?>
After running
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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
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PHP GD add text to image
PHP GD Add text to Images
<?php
$im = imagecreatetruecolor(300,
300);
$w = imagesx($im);
$h = imagesy($im);
$text...:
image/gif');
imagegif($im);
imagedestroy ($text);
imagedestroy($im);
?>
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PHP GD image Character up
<?php
$im = imagecreate(120,
120);
$string = 'This
is the text.';
$bg = imagecolorallocate($im,
255, 0,
0);
$black = imagecolorallocate...('Content-type:
image/png');
imagepng($im);
?>
After running the program you
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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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PHP GD Image into black and white
<?php
$i =
new imagethumbnail_blackandwhite();
$i->open("...-type:
image/jpeg;");
$i->imagejpeg();
class imagethumbnail
{
var $filename;
var $x;
var $y;
var $image;
var $thumbnail;
function
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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
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php gd image create from string
<?php
$String = 'iVBORw0KGgoAAAANSUhEUgAAABwAAAASCAMAAAB/2U7WAAAABl...'
. '8a5HSE35Q3eO2XP1A1wQkZSgETvDtKdQAAAABJRU5ErkJggg==';
$String = base64_decode($String);
$image = imagecreatefromstring($String);
if ($image
!== false)
{
header('Content-Type:
image/png
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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); ...: image/png");
imagepng($img);
imagedestroy($img);
?>
After running
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PHP GD imagecopyresampled
<?php
$filename = 'image1.jpg';
$percent = 0.2;
header('Content-type:
image/jpeg');
list($width,
$height) =
getimagesize($filename);
$new_width = $width
* $percent;
$new_height = $height
* $percent;
$image_p
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PHP GD Captcha Refersh
=
imagecreate($width, $height)
or die('Cannot
initialize new GD image stream...index.php
<?php
session_start();
if(isset($_POST['submit_x'])
&...($_POST['message']))
{
$data =
base64_decode($_SESSION['captcha_image_code
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PHP GD watermark on Images
<?php
$main_img = "main.jpg";
$watermark_img = "RI... = imagecreatefromjpeg($watermark_img);
$image = imagecreatefromjpeg($main_img);
if(!$image
|| !$watermark)
die("Error:
main image or watermark could not be loaded
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PHP GD captcha
_size =
$height * 0.75;
$image =
imagecreate($width, $height)
or die('Cannot
initialize new GD image stream');
$background_color =
imagecolorallocate($image...
<?php
session_start();
class CaptchaSecurityImages {
var $font
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PHP GD random bar chart on image
<?php
Header( "Content-type:
image/jpeg");
$im =
imagecreatefromjpeg( "images.jpg");
$red=ImageColorAllocate($im,255,0,0);
$green=ImageColorAllocate($im,0,255,0);
$blue=ImageColorAllocate($im,0,0,255
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PHP GD center text
<?php
$width = 400;
$height = 100;
$im = ImageCreate($width... - 1,
$border);
$text = 'This
is the text which is center of image...(($height
- $text_height)
/ 2);
$image_string = ImageString($im,
$font
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PHP GD gif
<?php
function LoadGif($imgname)
{
$im =
@imagecreatefromgif($imgname);
if(!$im)
{
$im =
imagecreatetruecolor (150,
30);
$bgc...:
image/gif');
$img = LoadGif('Roseindia');
imagegif($img);
imagedestroy($img
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PHP GD transparent png
<?php
$im = imagecreatetruecolor(55,
30);
$red = imagecolorallocate($im,
255, 0,
0);
$black = imagecolorallocate($im,
0, 0,
0...;Transparent
image created and saved successfully.");
?>
After
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PHP GD Replace Color
<?php
$image = "images.jpg";
$data = getimagesize($image... = imagecreatefromJPEG($image);
$color =
imagecolorallocate($im,hexdec(substr($hex,0,2... colormatch($image,$x,$y,$hex)
{
$rgb =
imagecolorat($image,$x,$y);
$r
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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
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PHP GD xpm
<?php
if(!(imagetypes() & IMG_XPM))
{
die('Support
for xpm was not found!');
}
$xpm = imagecreatefromxpm('./example.xpm');
imagejpeg($im,
'./example.jpg', 100);
imagedestroy($im);
?>
After running the program
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PHP GD circle
<?php
$text =
"RoseindiaRoseindiaRoseindiaRoseindiaRoseindia
";
$image =
imagecreatetruecolor(400,400);
$white =
imagecolorallocate...:
image/jpeg");
imagejpeg($image,"",100);
imagedestroy($image
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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 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
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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
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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
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PHP GD Add Border to image
<?php
$im = imagecreate(200,
60);
$bg = imagecolorallocate($im,
225, 225,
225);
$textcolor = imagecolorallocate($im,
0, 0,
255...,$y+$h,$bordercolors);
header("Content-type:
image/png");
imagepng
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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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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
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