本文整理汇总了PHP中imagecreatefromjpeg函数的典型用法代码示例。如果您正苦于以下问题：PHP imagecreatefromjpeg函数的具体用法？PHP imagecreatefromjpeg怎么用？PHP imagecreatefromjpeg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imagecreatefromjpeg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: load
static function load($filename)
{
$info = getimagesize($filename);
list($width, $height) = $info;
if (!$width || !$height) {
return null;
}
$image = null;
switch ($info['mime']) {
case 'image/gif':
$image = imagecreatefromgif($filename);
break;
case 'image/jpeg':
$image = imagecreatefromjpeg($filename);
break;
case 'image/png':
$image = imagecreatetruecolor($width, $height);
$white = imagecolorallocate($image, 255, 255, 255);
imagefill($image, 0, 0, $white);
$png = imagecreatefrompng($filename);
imagealphablending($png, true);
imagesavealpha($png, true);
imagecopy($image, $png, 0, 0, 0, 0, $width, $height);
imagedestroy($png);
break;
}
if ($image) {
return new image($image, $width, $height);
} else {
return null;
}
}示例2: hacknrollify
function hacknrollify($picfilename)
{
$logofilename = "logo.png";
$logoPicPath = "logopics/" . $logofilename;
$originalPicPath = "originalpics/" . $picfilename;
$editedfilename = "hnr_" . $picfilename;
$editedPicPath = "editedpics/" . $editedfilename;
// read the original image from file
$profilepic = imagecreatefromjpeg($originalPicPath);
$profilepicWidth = imagesx($profilepic);
$profilepicHeight = imagesy($profilepic);
// create the black image overlay
$blackoverlay = imagecreate($profilepicWidth, $profilepicHeight);
imagecolorallocate($blackoverlay, 0, 0, 0);
// then merge the black and profilepic
imagecopymerge($profilepic, $blackoverlay, 0, 0, 0, 0, $profilepicWidth, $profilepicHeight, 50);
imagedestroy($blackoverlay);
// merge the resized logo
$logo = resizeImage($logoPicPath, $profilepicWidth - 80, 999999);
imageAlphaBlending($logo, false);
imageSaveAlpha($logo, true);
$logoWidth = imagesx($logo);
$logoHeight = imagesy($logo);
$verticalOffset = $profilepicHeight / 2 - $logoHeight / 2;
$horizontalOffset = 40;
imagecopyresampled($profilepic, $logo, $horizontalOffset, $verticalOffset, 0, 0, $logoWidth, $logoHeight, $logoWidth, $logoHeight);
$mergeSuccess = imagejpeg($profilepic, $editedPicPath);
if (!$mergeSuccess) {
echo "Image merge failed!";
}
imagedestroy($profilepic);
imagedestroy($logo);
return $editedPicPath;
}示例3: createthumb
function createthumb($originalImage, $new_w, $new_h)
{
$src_img = imagecreatefromjpeg("uploads/" . $originalImage);
# Add the _t to our image name
list($imageName, $extension) = explode(".", $originalImage);
$newName = $imageName . "_t." . $extension;
# Maintain proportions
$old_x = imageSX($src_img);
$old_y = imageSY($src_img);
if ($old_x > $old_y) {
$thumb_w = $new_w;
$thumb_h = $old_y * ($new_h / $old_x);
}
if ($old_x < $old_y) {
$thumb_w = $old_x * ($new_w / $old_y);
$thumb_h = $new_h;
}
if ($old_x == $old_y) {
$thumb_w = $new_w;
$thumb_h = $new_h;
}
# Create destination-image-resource
$dst_img = ImageCreateTrueColor($thumb_w, $thumb_h);
# Copy source-image-resource to destination-image-resource
imagecopyresampled($dst_img, $src_img, 0, 0, 0, 0, $thumb_w, $thumb_h, $old_x, $old_y);
# Create the final image from the destination-image-resource
imagejpeg($dst_img, "uploads/" . $newName);
# Delete our image-resources
imagedestroy($dst_img);
imagedestroy($src_img);
# Show results
return $newName;
}示例4: load
/**
* Load an image
*
* @param $filename
* @return Image
* @throws Exception
*/
public static function load($filename)
{
$instance = new self();
// Require GD library
if (!extension_loaded('gd')) {
throw new Exception('Required extension GD is not loaded.');
}
$instance->filename = $filename;
$info = getimagesize($instance->filename);
switch ($info['mime']) {
case 'image/gif':
$instance->image = imagecreatefromgif($instance->filename);
break;
case 'image/jpeg':
$instance->image = imagecreatefromjpeg($instance->filename);
break;
case 'image/png':
$instance->image = imagecreatefrompng($instance->filename);
imagesavealpha($instance->image, true);
imagealphablending($instance->image, true);
break;
default:
throw new Exception('Invalid image: ' . $instance->filename);
break;
}
$instance->original_info = array('width' => $info[0], 'height' => $info[1], 'orientation' => $instance->get_orientation(), 'exif' => function_exists('exif_read_data') ? $instance->exif = @exif_read_data($instance->filename) : null, 'format' => preg_replace('/^image\\//', '', $info['mime']), 'mime' => $info['mime']);
$instance->width = $info[0];
$instance->height = $info[1];
imagesavealpha($instance->image, true);
imagealphablending($instance->image, true);
return $instance;
}示例5: upload
function upload($tmp, $name, $nome, $larguraP, $pasta)
{
$ext = strtolower(end(explode('.', $name)));
if ($ext == 'jpg') {
$img = imagecreatefromjpeg($tmp);
} elseif ($ext == 'gif') {
$img = imagecreatefromgif($tmp);
} else {
$img = imagecreatefrompng($tmp);
}
$x = imagesx($img);
$y = imagesy($img);
$largura = $x > $larguraP ? $larguraP : $x;
$altura = $largura * $y / $x;
if ($altura > $larguraP) {
$altura = $larguraP;
$largura = $altura * $x / $y;
}
$nova = imagecreatetruecolor($largura, $altura);
imagecopyresampled($nova, $img, 0, 0, 0, 0, $largura, $altura, $x, $y);
imagejpeg($nova, "{$pasta}/{$nome}");
imagedestroy($img);
imagedestroy($nova);
return $nome;
}示例6: resize
function resize($photo_src, $width, $name)
{
$parametr = getimagesize($photo_src);
list($width_orig, $height_orig) = getimagesize($photo_src);
$ratio_orig = $width_orig / $height_orig;
$new_width = $width;
$new_height = $width / $ratio_orig;
$newpic = imagecreatetruecolor($new_width, $new_height);
$col2 = imagecolorallocate($newpic, 255, 255, 255);
imagefilledrectangle($newpic, 0, 0, $new_width, $new_width, $col2);
switch ($parametr[2]) {
case 1:
$image = imagecreatefromgif($photo_src);
break;
case 2:
$image = imagecreatefromjpeg($photo_src);
break;
case 3:
$image = imagecreatefrompng($photo_src);
break;
}
imagecopyresampled($newpic, $image, 0, 0, 0, 0, $new_width, $new_height, $width_orig, $height_orig);
imagejpeg($newpic, $name, 100);
return true;
}示例7: GetPartialImage
function GetPartialImage($url)
{
$W = 150;
$H = 130;
$F = 80;
$STEP = 1.0 / $F;
$im = imagecreatefromjpeg($url);
$dest = imagecreatetruecolor($W, $H);
imagecopy($dest, $im, 0, 0, 35, 40, $W, $H);
$a = 1;
for( $y = $H - $F; $y < $H; $y++ )
{
for ( $x = 0; $x < $W; $x++ )
{
$i = imagecolorat($dest, $x, $y);
$c = imagecolorsforindex($dest, $i);
$c = imagecolorallocate($dest,
a($c['red'], $a),
a($c['green'], $a),
a($c['blue'], $a)
);
imagesetpixel($dest, $x, $y, $c);
}
$a -= $STEP;
}
header('Content-type: image/png');
imagepng($dest);
imagedestroy($dest);
imagedestroy($im);
}示例8: mkdir
mkdir($dir . $p, 0755);
}
}
return $p;
}
private static function _init($file)
{
$info = getimagesize($file);
$method = $im = $ext = null;
switch ($info['mime']) {
case 'image/jpeg':
case 'image/jpg':
$ext = '.jpg';
$im = imagecreatefromjpeg($file);
$method = 'imagejpeg';
break;
case 'image/gif':
$ext = '.gif';
$im = imagecreatefromgif($file);
$method = 'imagegif';
break;
case 'image/png':
$ext = '.png';
$im = imagecreatefrompng($file);
$method = 'imagepng';
break;
case 'image/bmp':
$ext = '.bmp';
$im = imagecreatefrombmp($file);
$method = 'imagepng';
break;示例9: background
function background()
{
$im = imagecreatetruecolor($this->width, $this->height);
$bgs = array();
if ($this->style & 8 && function_exists('imagecreatefromjpeg') && function_exists('imagecopymerge')) {
if ($fp = @opendir($GLOBALS['imgdir'] . '/ck/bg/')) {
while ($flie = @readdir($fp)) {
if (preg_match('/\\.jpg$/i', $flie)) {
$bgs[] = $GLOBALS['imgdir'] . '/ck/bg/' . $flie;
}
}
@closedir($fp);
}
}
if ($bgs) {
$imbg = imagecreatefromjpeg($bgs[array_rand($bgs)]);
imagecopymerge($im, $imbg, 0, 0, mt_rand(0, 200 - $this->width), mt_rand(0, 80 - $this->height), $this->width, $this->height, 100);
imagedestroy($imbg);
} else {
$c = array();
for ($i = 0; $i < 3; $i++) {
$c[$i] = mt_rand(200, 255);
$step[$i] = (mt_rand(100, 150) - $c[$i]) / $this->width;
}
for ($i = 0; $i < $this->width; $i++) {
imageline($im, $i, 0, $i, $this->height, imagecolorallocate($im, $c[0], $c[1], $c[2]));
$c[0] += $step[0];
$c[1] += $step[1];
$c[2] += $step[2];
}
}
return $im;
}示例10: openImage
private function openImage($file)
{
// *** Get extension
$extension = strtolower(strrchr($file, '.'));
//$extension = DataHandler::returnExtensionOfFile($file);
switch ($extension) {
case '.jpg':
case '.jpeg':
$img = @imagecreatefromjpeg($file);
break;
case '.gif':
$img = @imagecreatefromgif($file);
break;
case '.png':
$img = @ImageCreateFromPNG($file);
// //abaixo do php.net
// imagealphablending($img, false);
// imagesavealpha($img, true);
break;
default:
$img = false;
break;
}
return $img;
}示例11: __construct
public function __construct($filepath)
{
if (!function_exists('gd_info')) {
throw new Hayate_Exception(_('GD extension is missing.'));
}
if (!is_file($filepath)) {
throw new Hayate_Exception(sprintf(_('Cannot find %s'), $filepath));
}
$this->filepath = $filepath;
$info = getimagesize($this->filepath);
if (false === $info) {
throw new Hayate_Exception(sprintf(_('Cannot read %s'), $filepath));
}
list($this->width, $this->height) = $info;
$mimes = array('image/jpeg' => 'jpg', 'image/pjpeg' => 'jpg', 'image/gif' => 'gif', 'image/png' => 'png');
$this->ext = isset($mimes[$info['mime']]) ? $mimes[$info['mime']] : null;
if (null === $this->ext) {
throw new Hayate_Exception(sprintf(_('Supported mime types are: %s'), implode(',', array_keys($mimes))));
}
switch ($this->ext) {
case 'jpg':
$this->img = imagecreatefromjpeg($filepath);
break;
case 'gif':
$this->img = imagecreatefromgif($filepath);
break;
case 'png':
$this->img = imagecreatefrompng($filepath);
break;
}
}示例12: cropnsave
public function cropnsave($id)
{
$basepath = app_path() . '/storage/uploads/';
$jpeg_quality = 90;
$src = $basepath . 'resize_' . $id;
if (ImageModel::getImgTypeByExtension($id) == ImageModel::IMGTYPE_PNG) {
$img_r = imagecreatefrompng($src);
} else {
$img_r = imagecreatefromjpeg($src);
}
$dst_r = ImageCreateTrueColor(Input::get('w'), Input::get('h'));
imagecopyresampled($dst_r, $img_r, 0, 0, Input::get('x'), Input::get('y'), Input::get('w'), Input::get('h'), Input::get('w'), Input::get('h'));
$filename = $basepath . 'crop_' . $id;
imagejpeg($dst_r, $filename, $jpeg_quality);
$image = ImageModel::createImageModel('crop_' . $id);
try {
$session = Session::get('user');
$userService = new SoapClient(Config::get('wsdl.user'));
$currentUser = $userService->getUserById(array("userId" => $session['data']->id));
$currentUser = $currentUser->user;
$currentUser->avatar = $image;
$result = $userService->updateUser(array("user" => $currentUser));
// Cleanup
File::delete($src);
File::delete($filename);
File::delete($basepath . $id);
return Response::json($result->complete);
} catch (Exception $ex) {
error_log($ex);
}
}示例13: create_pic
function create_pic($upfile, $new_path, $width)
{
$quality = 100;
$image_path = $upfile;
$image_info = getimagesize($image_path);
$exname = '';
//1 = GIF, 2 = JPG, 3 = PNG, 4 = SWF, 5 = PSD, 6 = BMP, 7 = TIFF(intel byte order), 8 = TIFF(motorola byte order), 9 = JPC, 10 = JP2, 11 = JPX, 12 = JB2, 13 = SWC, 14 = IFF
switch ($image_info[2]) {
case 1:
@($image = imagecreatefromgif($image_path));
$exname = 'gif';
break;
case 2:
@($image = imagecreatefromjpeg($image_path));
$exname = 'jpg';
break;
case 3:
@($image = imagecreatefrompng($image_path));
$exname = 'png';
break;
case 6:
@($image = imagecreatefromwbmp($image_path));
$exname = 'wbmp';
break;
}
$T_width = $image_info[0];
$T_height = $image_info[1];
if (!empty($image)) {
$image_x = imagesx($image);
$image_y = imagesy($image);
} else {
return FALSE;
}
@chmod($new_path, 0777);
if ($image_x > $width) {
$x = $width;
$y = intval($x * $image_y / $image_x);
} else {
@copy($image_path, $new_path . '.' . $exname);
return $exname;
}
$newimage = imagecreatetruecolor($x, $y);
imagecopyresampled($newimage, $image, 0, 0, 0, 0, $x, $y, $image_x, $image_y);
switch ($image_info[2]) {
case 1:
imagegif($newimage, $new_path . '.gif', $quality);
break;
case 2:
imagejpeg($newimage, $new_path . '.jpg', $quality);
break;
case 3:
imagepng($newimage, $new_path . '.png', $quality);
break;
case 6:
imagewbmp($newimage, $new_path . '.wbmp', $quality);
break;
}
imagedestroy($newimage);
return $exname;
}示例14: resizewidth
static function resizewidth($width, $imageold, $imagenew)
{
$image_info = getimagesize($imageold);
$image_type = $image_info[2];
if ($image_type == IMAGETYPE_JPEG) {
$image = imagecreatefromjpeg($imageold);
} elseif ($this->image_type == IMAGETYPE_GIF) {
$image = imagecreatefromgif($imageold);
} elseif ($this->image_type == IMAGETYPE_PNG) {
$image = imagecreatefrompng($imageold);
}
$ratio = imagesy($image) / imagesx($image);
$height = $width * $ratio;
//$width = imagesx($image) * $width/100;
// $height = imagesx($image) * $width/100;
$new_image = imagecreatetruecolor($width, $height);
imagecopyresampled($new_image, $image, 0, 0, 0, 0, $width, $height, $image_info[0], $image_info[1]);
$image = $new_image;
$compression = 75;
$permissions = null;
if ($image_type == IMAGETYPE_JPEG) {
imagejpeg($image, $imagenew, $compression);
} elseif ($image_type == IMAGETYPE_GIF) {
imagegif($image, $imagenew);
} elseif ($image_type == IMAGETYPE_PNG) {
imagepng($image, $imagenew);
}
if ($permissions != null) {
chmod($imagenew, $permissions);
}
}示例15: get_image
function get_image($file)
{
/*
Create a resource from image file and return it with getimagesize() array
$file - image file or resource
return array('res'=>$image_resource, 'imgsize'=>getimagesize($file))
*/
if (is_file($file) === true && file_exists($file) === true && is_readable($file) === true) {
$img_size = getimagesize($file);
if ($img_size !== false) {
$im_mime = $img_size['mime'];
// Get the image from file
if ($im_mime === 'image/jpeg') {
$res = imagecreatefromjpeg($file);
} else {
if ($im_mime === 'image/gif') {
$res = imagecreatefromgif($file);
} else {
if ($im_mime === 'image/png') {
$res = imagecreatefrompng($file);
} else {
// Exit if not supported format
return false;
}
}
}
return array('res' => $res, 'imgsize' => $img_size);
}
}
return false;
}