本文整理汇总了PHP中ImageAlphaBlending函数的典型用法代码示例。如果您正苦于以下问题：PHP ImageAlphaBlending函数的具体用法？PHP ImageAlphaBlending怎么用？PHP ImageAlphaBlending使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了ImageAlphaBlending函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的PHP代码示例。
示例1: watermarkCreateText
/**
* Based on the Watermark function by Marek Malcherek
* http://www.malcherek.de
*
* @param string $color
* @param string $wmFont
* @param int $wmSize
* @param int $wmOpaque
*/
function watermarkCreateText($color = '000000', $wmFont, $wmSize = 10, $wmOpaque = 90)
{
// set font path
$wmFontPath = NGGALLERY_ABSPATH . "fonts/" . $wmFont;
if (!is_readable($wmFontPath)) {
return;
}
// This function requires both the GD library and the FreeType library.
if (!function_exists('ImageTTFBBox')) {
return;
}
$words = preg_split('/ /', $this->watermarkText);
$lines = array();
$line = '';
$watermark_image_width = 0;
// attempt adding a new word until the width is too large; then start a new line and start again
foreach ($words as $word) {
// sanitize the text being input; imagettftext() can be sensitive
$TextSize = $this->ImageTTFBBoxDimensions($wmSize, 0, $wmFontPath, $line . preg_replace('~^(&([a-zA-Z0-9]);)~', htmlentities('${1}'), mb_convert_encoding($word, "HTML-ENTITIES", "UTF-8")));
if ($watermark_image_width == 0) {
$watermark_image_width = $TextSize['width'];
}
if ($TextSize['width'] > $this->newDimensions['newWidth']) {
$lines[] = trim($line);
$line = '';
} else {
if ($TextSize['width'] > $watermark_image_width) {
$watermark_image_width = $TextSize['width'];
}
}
$line .= $word . ' ';
}
$lines[] = trim($line);
// use this string to determine our largest possible line height
$line_dimensions = $this->ImageTTFBBoxDimensions($wmSize, 0, $wmFontPath, 'MXQJALYmxqjabdfghjklpqry019`@$^&*(,!132');
$line_height = $line_dimensions['height'] * 1.05;
// Create an image to apply our text to
$this->workingImage = ImageCreateTrueColor($watermark_image_width, count($lines) * $line_height);
ImageSaveAlpha($this->workingImage, true);
ImageAlphaBlending($this->workingImage, false);
$bgText = imagecolorallocatealpha($this->workingImage, 255, 255, 255, 127);
imagefill($this->workingImage, 0, 0, $bgText);
$wmTransp = 127 - $wmOpaque * 1.27;
$rgb = $this->hex2rgb($color, false);
$TextColor = imagecolorallocatealpha($this->workingImage, $rgb[0], $rgb[1], $rgb[2], $wmTransp);
// Put text on the image, line-by-line
$y_pos = $wmSize;
foreach ($lines as $line) {
imagettftext($this->workingImage, $wmSize, 0, 0, $y_pos, $TextColor, $wmFontPath, $line);
$y_pos += $line_height;
}
$this->watermarkImgPath = $this->workingImage;
return;
}示例2: _addWaterMark
/**
* Agrega una marca de agua a la foto
* @param string $absolutePath
*/
private function _addWaterMark($absolutePath)
{
$DOC_ROOT = $this->_CI->input->server('DOCUMENT_ROOT') . "/";
if (FALSE === is_file($absolutePath)) {
return FALSE;
}
switch (TRUE) {
case stristr($absolutePath, 'jpg'):
$photoImage = ImageCreateFromJpeg("{$absolutePath}");
break;
case stristr($absolutePath, 'gif'):
$photoImage = ImageCreateFromGIF("{$absolutePath}");
break;
case stristr($absolutePath, 'png'):
$photoImage = ImageCreateFromPNG("{$absolutePath}");
break;
}
ImageAlphaBlending($photoImage, true);
// Añadimos aquà el fichero de marca de agua.
$logoImage = ImageCreateFromPNG($DOC_ROOT . "assets/imagenes/marca_agua_telam.png");
$logoW = ImageSX($logoImage);
$logoH = ImageSY($logoImage);
$tamanox = imagesx($photoImage);
$ubicacionX = ($tamanox - $logoW) / 2;
$tamanoy = imagesy($photoImage);
$ubicacionY = ($tamanoy - $logoH) / 2;
ImageCopy($photoImage, $logoImage, $ubicacionX, $ubicacionY, 0, 0, $logoW, $logoH);
imagejpeg($photoImage, $absolutePath);
ImageDestroy($photoImage);
ImageDestroy($logoImage);
}示例3: marcadeagua
function marcadeagua($img_original, $img_marcadeagua, $img_nueva, $calidad)
{
// obtener datos de la fotografia
$info_original = getimagesize($img_original);
$anchura_original = $info_original[0];
$altura_original = $info_original[1];
// obtener datos de la "marca de agua"
$info_marcadeagua = getimagesize($img_marcadeagua);
$anchura_marcadeagua = $info_marcadeagua[0];
$altura_marcadeagua = $info_marcadeagua[1];
// calcular la posición donde debe copiarse la "marca de agua" en la fotografia
/*
// Posicion: Centrado
$horizmargen = ($anchura_original - $anchura_marcadeagua)/2;
$vertmargen = ($altura_original - $altura_marcadeagua)/2;
*/
// Posicion: abajo a la izquierda
$horizmargen = 10;
$vertmargen = $altura_original - $altura_marcadeagua - 10;
// crear imagen desde el original
$original = ImageCreateFromJPEG($img_original);
ImageAlphaBlending($original, true);
// crear nueva imagen desde la marca de agua
$marcadeagua = ImageCreateFromPNG($img_marcadeagua);
// copiar la "marca de agua" en la fotografia
ImageCopy($original, $marcadeagua, $horizmargen, $vertmargen, 0, 0, $anchura_marcadeagua, $altura_marcadeagua);
// guardar la nueva imagen
ImageJPEG($original, $img_nueva, $calidad);
// cerrar las imágenes
ImageDestroy($original);
ImageDestroy($marcadeagua);
}示例4: watermark
function watermark($pngImage, $left = 0, $top = 0)
{
ImageAlphaBlending($this->image, true);
$layer = ImageCreateFromPNG($pngImage);
$logoW = ImageSX($layer);
$logoH = ImageSY($layer);
ImageCopy($this->image, $layer, $left, $top, 0, 0, $logoW, $logoH);
}示例5: canvas
function canvas ($width,$height,$alpha=false) {
$this->processed = ImageCreateTrueColor($width,$height);
if ($alpha) {
ImageAlphaBlending($this->processed, false);
$transparent = ImageColorAllocateAlpha($this->processed, 0, 0, 0, 127);
ImageFill($this->processed, 0, 0, $transparent);
ImageSaveAlpha($this->processed, true);
$this->alpha = true;
}
}示例6: copy_image
public function copy_image($url, $logo)
{
$bwidth = imagesx($url);
$bheight = imagesy($url);
$lwidth = imagesx($logo);
$lheight = imagesy($logo);
$src_x = $bwidth - ($lwidth + 5);
$src_y = $bheight - ($lheight + 5);
ImageAlphaBlending($url, true);
ImageCopy($url, $logo, $src_x, $src_y, 0, 0, $lwidth, $lheight);
}示例7: imageConvolution
function imageConvolution($src, $filter, $filter_div, $offset)
{
if ($src == NULL) {
return 0;
}
$sx = imagesx($src);
$sy = imagesy($src);
$srcback = ImageCreateTrueColor($sx, $sy);
ImageAlphaBlending($srcback, false);
ImageAlphaBlending($src, false);
ImageCopy($srcback, $src, 0, 0, 0, 0, $sx, $sy);
if ($srcback == NULL) {
return 0;
}
for ($y = 0; $y < $sy; ++$y) {
for ($x = 0; $x < $sx; ++$x) {
$new_r = $new_g = $new_b = 0;
$alpha = imagecolorat($srcback, @$pxl[0], @$pxl[1]);
$new_a = $alpha >> 24;
for ($j = 0; $j < 3; ++$j) {
$yv = min(max($y - 1 + $j, 0), $sy - 1);
for ($i = 0; $i < 3; ++$i) {
$pxl = array(min(max($x - 1 + $i, 0), $sx - 1), $yv);
$rgb = imagecolorat($srcback, $pxl[0], $pxl[1]);
$new_r += ($rgb >> 16 & 0xff) * $filter[$j][$i];
$new_g += ($rgb >> 8 & 0xff) * $filter[$j][$i];
$new_b += ($rgb & 0xff) * $filter[$j][$i];
$new_a += ((0x7f000000 & $rgb) >> 24) * $filter[$j][$i];
}
}
$new_r = $new_r / $filter_div + $offset;
$new_g = $new_g / $filter_div + $offset;
$new_b = $new_b / $filter_div + $offset;
$new_a = $new_a / $filter_div + $offset;
$new_r = $new_r > 255 ? 255 : ($new_r < 0 ? 0 : $new_r);
$new_g = $new_g > 255 ? 255 : ($new_g < 0 ? 0 : $new_g);
$new_b = $new_b > 255 ? 255 : ($new_b < 0 ? 0 : $new_b);
$new_a = $new_a > 127 ? 127 : ($new_a < 0 ? 0 : $new_a);
$new_pxl = ImageColorAllocateAlpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
if ($new_pxl == -1) {
$new_pxl = ImageColorClosestAlpha($src, (int) $new_r, (int) $new_g, (int) $new_b, $new_a);
}
if ($y >= 0 && $y < $sy) {
imagesetpixel($src, $x, $y, $new_pxl);
}
}
}
imagedestroy($srcback);
return 1;
}示例8: watermark
/**
// watermark
// source : php.net
*/
function watermark($name, $ext)
{
($hook = kleeja_run_hook('watermark_func_kljuploader')) ? eval($hook) : null;
//run hook
if (!file_exists($name)) {
return;
}
if (strpos($ext, 'jp') !== false) {
$src_img = @imagecreatefromjpeg($name);
} elseif (strpos($ext, 'png') !== false) {
$src_img = @imagecreatefrompng($name);
} elseif (strpos($ext, 'gif') !== false) {
$src_img = @imagecreatefromgif($name);
} else {
return;
}
if (file_exists('images/watermark.gif')) {
$src_logo = imagecreatefromgif('images/watermark.gif');
} elseif (file_exists('images/watermark.png')) {
$src_logo = imagecreatefrompng('images/watermark.png');
}
$bwidth = @imageSX($src_img);
$bheight = @imageSY($src_img);
$lwidth = @imageSX($src_logo);
$lheight = @imageSY($src_logo);
//fix bug for 1beta3
if ($bwidth > 160 && $bheight > 130) {
$src_x = $bwidth - ($lwidth + 5);
$src_y = $bheight - ($lheight + 5);
@ImageAlphaBlending($src_img, true);
@ImageCopy($src_img, $src_logo, $src_x, $src_y, 0, 0, $lwidth, $lheight);
if (strpos($ext, 'jp') !== false) {
@imagejpeg($src_img, $name);
} elseif (strpos($ext, 'png') !== false) {
@imagepng($src_img, $name);
} elseif (strpos($ext, 'gif') !== false) {
@imagegif($src_img, $name);
}
} else {
return false;
}
}示例9: cs_resample
function cs_resample($image, $target, $max_width, $max_height)
{
$gd_info = gd_info();
$im_info = array();
if (file_exists($image)) {
$im_info = getimagesize($image);
} else {
cs_error(__FILE__, 'Image file does not exist: "' . $image . '"');
return false;
}
if ($im_info[2] == 1 and !empty($gd_info["GIF Read Support"])) {
$src = ImageCreateFromGIF($image);
} elseif ($im_info[2] == 2 and (!empty($gd_info["JPG Support"]) or !empty($gd_info["JPEG Support"]))) {
$src = ImageCreateFromJPEG($image);
} elseif ($im_info[2] == 3 and !empty($gd_info["PNG Support"])) {
$src = ImageCreateFromPNG($image);
} else {
cs_error(__FILE__, 'Image filetype is not supported: "' . $image . '"');
return false;
}
$factor = max($im_info[1] / $max_height, $im_info[0] / $max_width);
$im_new[0] = floor($im_info[0] / $factor);
$im_new[1] = floor($im_info[1] / $factor);
$dst = ImageCreateTrueColor($im_new[0], $im_new[1]);
ImageAlphaBlending($dst, false);
ImageSaveAlpha($dst, true);
ImageCopyResampled($dst, $src, 0, 0, 0, 0, $im_new[0], $im_new[1], $im_info[0], $im_info[1]);
if ($im_info[2] == 1) {
$return = ImageGIF($dst, $target) ? 1 : 0;
} elseif ($im_info[2] == 2) {
$return = ImageJPEG($dst, $target, 100) ? 1 : 0;
} elseif ($im_info[2] == 3) {
$return = ImagePNG($dst, $target) ? 1 : 0;
} else {
cs_error(__FILE__, 'Failed to write resampled image file: "' . $target . '"');
return false;
}
return $return;
}示例10: watermarkCreateText
/**
* Based on the Watermark function by Marek Malcherek
* http://www.malcherek.de
*
* @param string $color
* @param string $wmFont
* @param int $wmSize
* @param int $wmOpaque
*/
function watermarkCreateText($color = '000000', $wmFont, $wmSize = 10, $wmOpaque = 90)
{
// set font path
$wmFontPath = NGGALLERY_ABSPATH . "fonts/" . $wmFont;
if (!is_readable($wmFontPath)) {
return;
}
// This function requires both the GD library and the FreeType library.
if (!function_exists('ImageTTFBBox')) {
return;
}
$TextSize = @ImageTTFBBox($wmSize, 0, $wmFontPath, $this->watermarkText) or die;
$TextWidth = abs($TextSize[2]) + abs($TextSize[0]);
$TextHeight = abs($TextSize[7]) + abs($TextSize[1]);
// Create Image for Text
$this->workingImage = ImageCreateTrueColor($TextWidth, $TextHeight);
ImageSaveAlpha($this->workingImage, true);
ImageAlphaBlending($this->workingImage, false);
$bgText = imagecolorallocatealpha($this->workingImage, 255, 255, 255, 127);
imagefill($this->workingImage, 0, 0, $bgText);
$wmTransp = 127 - $wmOpaque * 1.27;
$rgb = $this->hex2rgb($color, false);
$TextColor = imagecolorallocatealpha($this->workingImage, $rgb[0], $rgb[1], $rgb[2], $wmTransp);
// Create Text on image
imagettftext($this->workingImage, $wmSize, 0, 0, abs($TextSize[5]), $TextColor, $wmFontPath, $this->watermarkText);
$this->watermarkImgPath = $this->workingImage;
return;
}示例11: oos_watermark
function oos_watermark($pic, $image_new, $quality = '100')
{
$dst_img = '';
$imageInfo = GetImageSize($pic);
$width = $imageInfo[0];
$height = $imageInfo[1];
$logoinfo = getimagesize(OOS_WATERMARK_LOGO);
$logowidth = $logoinfo[0];
$logoheight = $logoinfo[1];
if (function_exists('imagecreatefromjpeg')) {
// check if php with gd-lib-support is installed
if ($imageInfo[2] == 1) {
if (function_exists('imagecreatefromgif')) {
$src_img = imagecreatefromgif($pic);
}
}
if ($imageInfo[2] == 2) {
if (function_exists('imagecreatefromjpeg')) {
$src_img = imagecreatefromjpeg($pic);
}
}
if ($imageInfo[2] == 3) {
if (function_exists('imagecreatefrompng')) {
$src_img = imagecreatefrompng($pic);
}
}
if ($src_img) {
if (OOS_BIGIMAGE_WIDTH || OOS_BIGIMAGE_HEIGHT) {
// proportionaler resize; width oder height ist die maximale Größe
$x = OOS_BIGIMAGE_WIDTH / $width;
$y = OOS_BIGIMAGE_HEIGHT / $height;
if ($y > 0 && $y < $x || $x == 0) {
$x = $y;
}
$width_big = $width * $x;
$height_big = $height * $x;
$width = $width_big;
$height = $height_big;
if (OOS_GD_LIB_VERSION == '2') {
$dst_img = imagecreatetruecolor($width_big, $height_big);
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $width_big, $height_big, imagesx($src_img), imagesy($src_img));
} else {
$dst_img = imagecreate($width_big, $height_big);
imagecopyresized($dst_img, $src_img, 0, 0, 0, 0, $width_big, $height_big, imagesx($src_img), imagesy($src_img));
}
} else {
$dst_img = $src_img;
}
$hori = $width - $logowidth;
$vert = $height - $logoheight;
$horizmargin = round($hori / 2);
$vertmargin = round($vert / 2);
ImageAlphaBlending($dst_img, true);
$logoImage = ImageCreateFromPNG(OOS_WATERMARK_LOGO);
$logoW = ImageSX($logoImage);
$logoH = ImageSY($logoImage);
ImageCopy($dst_img, $logoImage, $horizmargin, $vertmargin, 0, 0, $logoW, $logoH);
// Copy Picture
$fh = fopen($image_new, 'w');
fclose($fh);
if ($imageInfo[2] == 1) {
imagegif($dst_img, $image_new);
}
if ($imageInfo[2] == 2) {
imagejpeg($dst_img, $image_new, $quality);
}
if ($imageInfo[2] == 3) {
imagepng($dst_img, $image_new);
}
return true;
}
}
// pic couldn't be resized, so copy original
copy($pic, $image_new);
return false;
}示例12: replaceTransparentWhite
function replaceTransparentWhite($im)
{
$src_w = ImageSX($im);
$src_h = ImageSY($im);
$backgroundimage = imagecreatetruecolor($src_w, $src_h);
$white = ImageColorAllocate($backgroundimage, 255, 255, 255);
ImageFill($backgroundimage, 0, 0, $white);
ImageAlphaBlending($backgroundimage, TRUE);
imagecopy($backgroundimage, $im, 0, 0, 0, 0, $src_w, $src_h);
return $backgroundimage;
}示例13: elseif
// great
} elseif (@$_GET['new']) {
// generate a blank image resource of the specified size/background color/opacity
if ($phpThumb->w <= 0 || $phpThumb->h <= 0) {
$phpThumb->ErrorImage('"w" and "h" parameters required for "new"');
}
@(list($bghexcolor, $opacity) = explode('|', $_GET['new']));
if (!phpthumb_functions::IsHexColor($bghexcolor)) {
$phpThumb->ErrorImage('BGcolor parameter for "new" is not valid');
}
$opacity = strlen($opacity) ? $opacity : 100;
if ($phpThumb->gdimg_source = phpthumb_functions::ImageCreateFunction($phpThumb->w, $phpThumb->h)) {
$alpha = (100 - min(100, max(0, $opacity))) * 1.27;
if ($alpha) {
$phpThumb->setParameter('is_alpha', true);
ImageAlphaBlending($phpThumb->gdimg_source, false);
ImageSaveAlpha($phpThumb->gdimg_source, true);
}
$new_background_color = phpthumb_functions::ImageHexColorAllocate($phpThumb->gdimg_source, $bghexcolor, false, $alpha);
ImageFilledRectangle($phpThumb->gdimg_source, 0, 0, $phpThumb->w, $phpThumb->h, $new_background_color);
} else {
$phpThumb->ErrorImage('failed to create "new" image (' . $phpThumb->w . 'x' . $phpThumb->h . ')');
}
} elseif (!$phpThumb->src) {
$phpThumb->ErrorImage('Usage: ' . $_SERVER['PHP_SELF'] . '?src=/path/and/filename.jpg' . "\n" . 'read Usage comments for details');
} elseif (preg_match('/^(f|ht)tp\\:\\/\\//i', $phpThumb->src)) {
$phpThumb->DebugMessage('$phpThumb->src (' . $phpThumb->src . ') is remote image, attempting to download', __FILE__, __LINE__);
if ($phpThumb->config_http_user_agent) {
$phpThumb->DebugMessage('Setting "user_agent" to "' . $phpThumb->config_http_user_agent . '"', __FILE__, __LINE__);
ini_set('user_agent', $phpThumb->config_http_user_agent);
}示例14: SaveQValueAssociationImage
private function SaveQValueAssociationImage()
{
if (!array_key_exists('associationimage', $_FILES) || $_FILES['associationimage']['error'] !== 0 || strtolower(substr($_FILES['associationimage']['type'], 0, 6)) !== 'image/') {
return false;
}
// Attempt to set the memory limit
setImageFileMemLimit($_FILES['associationimage']['tmp_name']);
// Generate the destination path
$randomDir = strtolower(chr(rand(65, 90)));
$destPath = realpath(ISC_BASE_PATH . '/' . GetConfig('ImageDirectory'));
if (!is_dir($destPath . '/' . $randomDir)) {
if (!@mkdir($destPath . '/' . $randomDir, 0777)) {
$randomDir = '';
}
}
$destFile = GenRandFileName($_FILES['associationimage']['name'], 'category');
$destPath = $destPath . '/' . $randomDir . '/' . $destFile;
$returnPath = $randomDir . '/' . $destFile;
$tmp = explode('.', $_FILES['associationimage']['name']);
$ext = strtolower($tmp[count($tmp) - 1]);
if ($ext == 'jpg') {
$srcImg = imagecreatefromjpeg($_FILES['associationimage']['tmp_name']);
} else {
if ($ext == 'gif') {
$srcImg = imagecreatefromgif($_FILES['associationimage']['tmp_name']);
if (!function_exists('imagegif')) {
$gifHack = 1;
}
} else {
$srcImg = imagecreatefrompng($_FILES['associationimage']['tmp_name']);
}
}
$srcWidth = imagesx($srcImg);
$srcHeight = imagesy($srcImg);
$widthLimit = GetConfig('BrandImageWidth');
$heightLimit = GetConfig('BrandImageHeight');
// If the image is small enough, simply move it and leave it as is
if ($srcWidth <= $widthLimit && $srcHeight <= $heightLimit) {
imagedestroy($srcImg);
move_uploaded_file($_FILES['associationimage']['tmp_name'], $destPath);
return $returnPath;
}
// Otherwise, the image needs to be resized
$attribs = getimagesize($_FILES['associationimage']['tmp_name']);
$width = $attribs[0];
$height = $attribs[1];
if ($width > $widthLimit) {
$height = ceil($widthLimit / $width * $height);
$width = $widthLimit;
}
if ($height > $heightLimit) {
$width = ceil($heightLimit / $height * $width);
$height = $heightLimit;
}
$dstImg = imagecreatetruecolor($width, $height);
if ($ext == "gif" && !isset($gifHack)) {
$colorTransparent = imagecolortransparent($srcImg);
imagepalettecopy($srcImg, $dstImg);
imagecolortransparent($dstImg, $colorTransparent);
imagetruecolortopalette($dstImg, true, 256);
} else {
if ($ext == "png") {
ImageColorTransparent($dstImg, ImageColorAllocate($dstImg, 0, 0, 0));
ImageAlphaBlending($dstImg, false);
}
}
imagecopyresampled($dstImg, $srcImg, 0, 0, 0, 0, $width, $height, $srcWidth, $srcHeight);
if ($ext == "jpg") {
imagejpeg($dstImg, $destPath, 100);
} else {
if ($ext == "gif") {
if (isset($gifHack) && $gifHack == true) {
$thumbFile = isc_substr($destPath, 0, -3) . "jpg";
imagejpeg($dstImg, $destPath, 100);
} else {
imagegif($dstImg, $destPath);
}
} else {
imagepng($dstImg, $destPath);
}
}
@imagedestroy($dstImg);
@imagedestroy($srcImg);
@unlink($_FILES['associationimage']['tmp_name']);
// Change the permissions on the thumbnail file
isc_chmod($returnPath, ISC_WRITEABLE_FILE_PERM);
return $returnPath;
}示例15: ImageCreateFromPNG
<?php
// Rectangle Version
$filename = __DIR__ . '/php.png';
// Thumbnail Dimentions
$w = 50;
$h = 20;
// Images
$original = ImageCreateFromPNG($filename);
$thumbnail = ImageCreateTrueColor($w, $h);
// Preserve Transparency
ImageColorTransparent($thumbnail, ImageColorAllocateAlpha($thumbnail, 0, 0, 0, 127));
ImageAlphaBlending($thumbnail, false);
ImageSaveAlpha($thumbnail, true);
// Scale & Copy
$x = ImageSX($original);
$y = ImageSY($original);
$scale = min($x / $w, $y / $h);
ImageCopyResampled($thumbnail, $original, 0, 0, ($x - $w * $scale) / 2, ($y - $h * $scale) / 2, $w, $h, $w * $scale, $h * $scale);
// Send
header('Content-type: image/png');
ImagePNG($thumbnail);
ImageDestroy($original);
ImageDestroy($thumbnail);