mon problème est que, après je l'ai utilisé le code How to merge transparent PNG with image using PHP? et je fusionné deux images, la première est normale, mais le second est a un fond transparent, quand je teste l'image qu'elle considère comme ceci http://img508.imageshack.us/img508/6658/testingphp.jpgfusionner deux images en utilisant PHP?
Ajouter imagealphablending ($ frame, true); avant imagecopymerge() si vous souhaitez conserver la transparence du cadre png sur l'image.
-Raf (du fil que vous avez lié, légèrement en bas de la page.)
Voici le code faire un example.php
<?php
include "GIFEncoder.class.php";
$frames =array();
$frames [ 0 ] = "frames/images01.gif";
$frames [ 1 ] = "frames/images01.gif";
$framed [ ] = 5;
/*
GIFEncoder constructor:
=======================
image_stream = new GIFEncoder (
URL or Binary data 'Sources'
int 'Delay times'
int 'Animation loops'
int 'Disposal'
int 'Transparent red, green, blue colors'
int 'Source type'
);
*/
$gif = new GIFEncoder (
$frames,
$framed,
0,
2,
0, 0, 0,
"url"
);
/*
Possibles outputs:
==================
Output as GIF for browsers :
- Header ('Content-type:image/gif');
Output as GIF for browsers with filename:
- Header ('Content-disposition:Attachment;filename=myanimation.gif');
Output as file to store into a specified file:
- FWrite (FOpen ("myanimation.gif", "wb"), $gif->GetAnimation ());
*/
Header ('Content-type:image/gif');
echo $gif->GetAnimation ();
?>
Maintenant, créez GIFEncoder.class. php
<?php
Class GIFEncoder {
var $GIF = "GIF89a"; /* GIF header 6 bytes */
var $VER = "GIFEncoder V2.05"; /* Encoder version */
var $BUF = Array ();
var $LOP = 0;
var $DIS = 2;
var $COL = -1;
var $IMG = -1;
var $ERR = Array (
ERR00=>"Does not supported function for only one image!",
ERR01=>"Source is not a GIF image!",
ERR02=>"Unintelligible flag ",
ERR03=>"Does not make animation from animated GIF source",
);
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFEncoder...
::
*/
function GIFEncoder (
$GIF_src, $GIF_dly, $GIF_lop, $GIF_dis,
$GIF_red, $GIF_grn, $GIF_blu, $GIF_mod
) {
if (! is_array ($GIF_src) && ! is_array ($GIF_tim)) {
printf ("%s: %s", $this->VER, $this->ERR [ 'ERR00' ]);
exit (0);
}
$this->LOP = ($GIF_lop > -1) ? $GIF_lop : 0;
$this->DIS = ($GIF_dis > -1) ? (($GIF_dis < 3) ? $GIF_dis : 3) : 2;
$this->COL = ($GIF_red > -1 && $GIF_grn > -1 && $GIF_blu > -1) ?
($GIF_red | ($GIF_grn << 8) | ($GIF_blu << 16)) : -1;
for ($i = 0; $i < count ($GIF_src); $i++) {
if (strToLower ($GIF_mod) == "url") {
$this->BUF [ ] = fread (fopen ($GIF_src [ $i ], "rb"), filesize ($GIF_src [ $i ]));
}
else if (strToLower ($GIF_mod) == "bin") {
$this->BUF [ ] = $GIF_src [ $i ];
}
else {
printf ("%s: %s (%s)!", $this->VER, $this->ERR [ 'ERR02' ], $GIF_mod);
exit (0);
}
if (substr ($this->BUF [ $i ], 0, 6) != "GIF87a" && substr ($this->BUF [ $i ], 0, 6) != "GIF89a") {
printf ("%s: %d %s", $this->VER, $i, $this->ERR [ 'ERR01' ]);
exit (0);
}
for ($j = (13 + 3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07))), $k = TRUE; $k; $j++) {
switch ($this->BUF [ $i ] { $j }) {
case "!":
if ((substr ($this->BUF [ $i ], ($j + 3), 8)) == "NETSCAPE") {
printf ("%s: %s (%s source)!", $this->VER, $this->ERR [ 'ERR03' ], ($i + 1));
exit (0);
}
break;
case ";":
$k = FALSE;
break;
}
}
}
GIFEncoder::GIFAddHeader ();
for ($i = 0; $i < count ($this->BUF); $i++) {
GIFEncoder::GIFAddFrames ($i, $GIF_dly [ $i ]);
}
GIFEncoder::GIFAddFooter ();
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddHeader...
::
*/
function GIFAddHeader () {
$cmap = 0;
if (ord ($this->BUF [ 0 ] { 10 }) & 0x80) {
$cmap = 3 * (2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07));
$this->GIF .= substr ($this->BUF [ 0 ], 6, 7 );
$this->GIF .= substr ($this->BUF [ 0 ], 13, $cmap );
$this->GIF .= "!\377\13NETSCAPE2.0\3\1" . GIFEncoder::GIFWord ($this->LOP) . "\0";
}
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddFrames...
::
*/
function GIFAddFrames ($i, $d) {
$Locals_str = 13 + 3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07));
$Locals_end = strlen ($this->BUF [ $i ]) - $Locals_str - 1;
$Locals_tmp = substr ($this->BUF [ $i ], $Locals_str, $Locals_end);
$Global_len = 2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07);
$Locals_len = 2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07);
$Global_rgb = substr ($this->BUF [ 0 ], 13,
3 * (2 << (ord ($this->BUF [ 0 ] { 10 }) & 0x07)));
$Locals_rgb = substr ($this->BUF [ $i ], 13,
3 * (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07)));
$Locals_ext = "!\xF9\x04" . chr (($this->DIS << 2) + 0) .
chr (($d >> 0) & 0xFF) . chr (($d >> 8) & 0xFF) . "\x0\x0";
if ($this->COL > -1 && ord ($this->BUF [ $i ] { 10 }) & 0x80) {
for ($j = 0; $j < (2 << (ord ($this->BUF [ $i ] { 10 }) & 0x07)); $j++) {
if (
ord ($Locals_rgb { 3 * $j + 0 }) == (($this->COL >> 16) & 0xFF) &&
ord ($Locals_rgb { 3 * $j + 1 }) == (($this->COL >> 8) & 0xFF) &&
ord ($Locals_rgb { 3 * $j + 2 }) == (($this->COL >> 0) & 0xFF)
) {
$Locals_ext = "!\xF9\x04" . chr (($this->DIS << 2) + 1) .
chr (($d >> 0) & 0xFF) . chr (($d >> 8) & 0xFF) . chr ($j) . "\x0";
break;
}
}
}
switch ($Locals_tmp { 0 }) {
case "!":
$Locals_img = substr ($Locals_tmp, 8, 10);
$Locals_tmp = substr ($Locals_tmp, 18, strlen ($Locals_tmp) - 18);
break;
case ",":
$Locals_img = substr ($Locals_tmp, 0, 10);
$Locals_tmp = substr ($Locals_tmp, 10, strlen ($Locals_tmp) - 10);
break;
}
if (ord ($this->BUF [ $i ] { 10 }) & 0x80 && $this->IMG > -1) {
if ($Global_len == $Locals_len) {
if (GIFEncoder::GIFBlockCompare ($Global_rgb, $Locals_rgb, $Global_len)) {
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
}
else {
$byte = ord ($Locals_img { 9 });
$byte |= 0x80;
$byte &= 0xF8;
$byte |= (ord ($this->BUF [ 0 ] { 10 }) & 0x07);
$Locals_img { 9 } = chr ($byte);
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
}
}
else {
$byte = ord ($Locals_img { 9 });
$byte |= 0x80;
$byte &= 0xF8;
$byte |= (ord ($this->BUF [ $i ] { 10 }) & 0x07);
$Locals_img { 9 } = chr ($byte);
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp);
}
}
else {
$this->GIF .= ($Locals_ext . $Locals_img . $Locals_tmp);
}
$this->IMG = 1;
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFAddFooter...
::
*/
function GIFAddFooter () {
$this->GIF .= ";";
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFBlockCompare...
::
*/
function GIFBlockCompare ($GlobalBlock, $LocalBlock, $Len) {
for ($i = 0; $i < $Len; $i++) {
if (
$GlobalBlock { 3 * $i + 0 } != $LocalBlock { 3 * $i + 0 } ||
$GlobalBlock { 3 * $i + 1 } != $LocalBlock { 3 * $i + 1 } ||
$GlobalBlock { 3 * $i + 2 } != $LocalBlock { 3 * $i + 2 }
) {
return (0);
}
}
return (1);
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GIFWord...
::
*/
function GIFWord ($int) {
return (chr ($int & 0xFF) . chr (($int >> 8) & 0xFF));
}
/*
:::::::::::::::::::::::::::::::::::::::::::::::::::
::
:: GetAnimation...
::
*/
function GetAnimation () {
return ($this->GIF);
}
}
?>
Lieu images01.gif et images02.gif dans des cadres à côté dossier ces deux fichiers
Exécutez maintenant example.php
Vous pouvez également télécharger le code de son
J'ai essayé ceci et cela fonctionne.
en ce qui concerne
Wasim
Je l'ai écrit pour 100% mêmes exigences que le vôtre. La définition est explicite.
function create_watermarked_image($image,$overlay,$align='right',$valign='bottom',$offset_w=0,$offset_h=0)
{
if(!in_array($align,array('left','center','right')))
$align='right';
if(!in_array($valign,array('top','middle','bottom')))
$valign='bottom';
$background=$image;
// Find base image size
$iwidth = imagesx($image);
$iheight = imagesy($image);
// Turn on alpha blending
imagealphablending($image, true);
// Get the size of overlay
$owidth = imagesx($overlay);
$oheight = imagesy($overlay);
//align
if($align=='left')
$x = $offset_w;
elseif($align=='center')
$x= $iwidth/2 - $owidth/2;
elseif($align=='right')
$x=$iwidth - $owidth - $offset_w;
//valign
if($valign=='top')
$y = $offset_h;
elseif($valign=='middle')
$y = $iheight/2 - $oheight/2 ;
elseif($valign=='bottom')
$y = $iheight - $oheight - $offset_h;
// Overlay watermark
imagecopy($image, $overlay, $x, $y, 0, 0, $owidth, $oheight);
return $image;
}
Une autre fonction utile pour nourrir au-dessus d'un
function create_image_from_file($img,$file_name=false)
{
if (!file_exists($img))
return -1;
if(!$file_name)
$ext = strtolower(substr($img, strrpos($img, ".") + 1));
else
$ext = strtolower(substr($file_name, strrpos($file_name, ".") + 1));
switch ($ext)
{
case 'jpg':
$img2=imagecreatefromjpeg($img);
break;
case 'jpeg':
$img2=imagecreatefromjpeg($img);
break;
case 'png':
$img2=imagecreatefrompng($img);
break;
case 'gif':
$img2=imagecreatefromgif($img);
break;
default:
return -2;
}
if($img2)
return $img2;
else
return -3;
}
Ce code semble fonctionner: http://www.exorithm.com/algorithm/view/watermark_image
je l'ai essayé avant que je posais la question, il laisse l'image '$ frame' telle qu'elle est – Mahmoud
Jetez un coup d'oeil à ceci peut-être: http://www.php.net/manual/fr/function.imagealphablending.php#77085 – wanovak
nope n'a pas beaucoup aidé – Mahmoud