PHP imagick::setImageFormat方法代码示例

 function cdm_thumbPdf($pdf)
 {
     if (class_exists('imagick')) {
         $upload_dir = wp_upload_dir();
         $tmp_folder = $upload_dir['basedir'] . '/imageMagick_tmp/';
         if (!is_dir($tmp_folder)) {
             mkdir($tmp_folder, 0777);
         }
         $tmp = $tmp_folder;
         $format = "png";
         $source = $pdf;
         $dest = "" . $pdf . "_big.{$format}";
         $dest2 = "" . $pdf . "_small.{$format}";
         // read page 1
         $im = new imagick('' . $source . '[0]');
         // convert to jpg
         $im->setImageColorspace(255);
         $im->setImageFormat($format);
         //resize
         $im->resizeImage(650, 650, imagick::FILTER_LANCZOS, 1);
         //write image on server
         $im->writeImage($dest);
         //resize
         $im->resizeImage(250, 250, imagick::FILTER_LANCZOS, 1);
         //write image on server
         $im->writeImage($dest2);
         $im->clear();
         $im->destroy();
     } else {
         echo 'php-image-magick not installed. Please disable the pdf thumbnail options or install the php extention correctly.';
         exit;
     }
 }

 public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview)
 {
     $this->initCmd();
     if (is_null($this->cmd)) {
         return false;
     }
     $absPath = $fileview->toTmpFile($path);
     $tmpDir = get_temp_dir();
     $defaultParameters = ' --headless --nologo --nofirststartwizard --invisible --norestore -convert-to pdf -outdir ';
     $clParameters = \OCP\Config::getSystemValue('preview_office_cl_parameters', $defaultParameters);
     $exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
     $export = 'export HOME=/' . $tmpDir;
     shell_exec($export . "\n" . $exec);
     //create imagick object from pdf
     try {
         $pdf = new \imagick($absPath . '.pdf' . '[0]');
         $pdf->setImageFormat('jpg');
     } catch (\Exception $e) {
         unlink($absPath);
         unlink($absPath . '.pdf');
         \OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
         return false;
     }
     $image = new \OC_Image();
     $image->loadFromData($pdf);
     unlink($absPath);
     unlink($absPath . '.pdf');
     return $image->valid() ? $image : false;
 }

function pdftojpg($pdfFile, $jpgFile)
{
    /*  
     * imagemagick and php5-imagick required 
     * 
     * all options for imagick: 
     *           http://php.net/manual/fr/class.imagick.php 
     * 
     */
    $pdf_file = $pdfFile;
    $save_to = $jpgFile;
    $img = new imagick();
    //this must be called before reading the image, otherwise has no effect - "-density {$x_resolution}x{$y_resolution}"
    //this is important to give good quality output, otherwise text might be unclear
    $img->setResolution(200, 200);
    //read the pdf
    $img->readImage("{$pdf_file}[0]");
    //reduce the dimensions - scaling will lead to black color in transparent regions
    $img->scaleImage(1920, 1080);
    //set new format
    $img->setCompressionQuality(80);
    $img->setImageFormat('jpg');
    // -flatten option, this is necessary for images with transparency, it will produce white background for transparent regions
    $img = $img->flattenImages();
    //save image file
    $img->writeImages($save_to, false);
    //clean
    $img->clear();
    $img->destroy();
}

 public function processPdf($fileNames)
 {
     $mpdf = Yii::app()->ePdf->mpdf();
     $mpdf->SetImportUse();
     $pagecount = $mpdf->SetSourceFile('../' . $fileNames['pdf']);
     if ($pagecount > 3) {
         for ($i = 1; $i <= 3; $i++) {
             if ($i != 1) {
                 $mpdf->AddPage();
             }
             $import_page = $mpdf->ImportPage($i);
             // add last 3 page
             $mpdf->UseTemplate($import_page);
         }
     } else {
         $tplId = $mpdf->ImportPage($pagecount);
         $mpdf->UseTemplate($tplId);
     }
     $mpdf->Output('../' . Extensions::FILE_PDF_PREVIEW_PATH . $fileNames['pdfPreview'], 'F');
     $im = new imagick();
     $im->readimage('/home/notesgen/public_html/' . Extensions::FILE_PDF_PREVIEW_PATH . $fileNames['pdfPreview']);
     $im->setImageCompressionQuality(0);
     $im->setImageFormat('jpeg');
     $im->writeImage('../' . Extensions::FILE_IMAGE_PATH . $fileNames['image']);
     $im->setImageCompressionQuality(80);
     $im->writeImage('../' . Extensions::FILE_IMAGE_PATH_APP . $fileNames['image']);
     $im->clear();
     $im->destroy();
 }

 /**
  * {@inheritDoc}
  */
 public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview)
 {
     $this->initCmd();
     if (is_null($this->cmd)) {
         return false;
     }
     $absPath = $fileview->toTmpFile($path);
     $tmpDir = \OC::$server->getTempManager()->getTempBaseDir();
     $defaultParameters = ' -env:UserInstallation=file://' . escapeshellarg($tmpDir . '/owncloud-' . \OC_Util::getInstanceId() . '/') . ' --headless --nologo --nofirststartwizard --invisible --norestore --convert-to pdf --outdir ';
     $clParameters = \OCP\Config::getSystemValue('preview_office_cl_parameters', $defaultParameters);
     $exec = $this->cmd . $clParameters . escapeshellarg($tmpDir) . ' ' . escapeshellarg($absPath);
     shell_exec($exec);
     //create imagick object from pdf
     $pdfPreview = null;
     try {
         list($dirname, , , $filename) = array_values(pathinfo($absPath));
         $pdfPreview = $dirname . '/' . $filename . '.pdf';
         $pdf = new \imagick($pdfPreview . '[0]');
         $pdf->setImageFormat('jpg');
     } catch (\Exception $e) {
         unlink($absPath);
         unlink($pdfPreview);
         \OCP\Util::writeLog('core', $e->getmessage(), \OCP\Util::ERROR);
         return false;
     }
     $image = new \OC_Image();
     $image->loadFromData($pdf);
     unlink($absPath);
     unlink($pdfPreview);
     if ($image->valid()) {
         $image->scaleDownToFit($maxX, $maxY);
         return $image;
     }
     return false;
 }

 function thumbnail($file, $width = '120')
 {
     $name = $this->_dir . DS . $file . '[0]';
     $im = new imagick($name);
     $im->setImageFormat('jpg');
     $im->scaleImage($width, 0);
     header('Content-Type: image/jpeg');
     echo $im;
 }

function pdftoimage($file, $page)
{
    $filepart = pathinfo($file);
    $save_to = $filepart['filename'] . ".jpg";
    $im = new imagick($file[$page - 1]);
    $im->thumbnailImage(800, 0);
    $im->setImageFormat('jpg');
    $im = $im->flattenImages();
    file_put_contents($save_to, $im);
}

 public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview)
 {
     $tmpPath = $fileview->toTmpFile($path);
     //create imagick object from pdf
     try {
         $pdf = new \imagick($tmpPath . '[0]');
         $pdf->setImageFormat('jpg');
     } catch (\Exception $e) {
         \OC_Log::write('core', $e->getmessage(), \OC_Log::ERROR);
         return false;
     }
     unlink($tmpPath);
     //new image object
     $image = new \OC_Image($pdf);
     //check if image object is valid
     return $image->valid() ? $image : false;
 }

 public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview)
 {
     require_once 'PHPExcel/Classes/PHPExcel.php';
     require_once 'PHPExcel/Classes/PHPExcel/IOFactory.php';
     $absPath = $fileview->toTmpFile($path);
     $tmpPath = \OC_Helper::tmpFile();
     $rendererName = \PHPExcel_Settings::PDF_RENDERER_DOMPDF;
     $rendererLibraryPath = \OC::$THIRDPARTYROOT . '/3rdparty/dompdf';
     \PHPExcel_Settings::setPdfRenderer($rendererName, $rendererLibraryPath);
     $phpexcel = new \PHPExcel($absPath);
     $excel = \PHPExcel_IOFactory::createWriter($phpexcel, 'PDF');
     $excel->save($tmpPath);
     $pdf = new \imagick($tmpPath . '[0]');
     $pdf->setImageFormat('jpg');
     unlink($absPath);
     unlink($tmpPath);
     $image = new \OC_Image();
     $image->loadFromData($pdf);
     return $image->valid() ? $image : false;
 }

 public function generatePreviewImage($pdfFile, $saveTo)
 {
     try {
         $img = new imagick(Director::getAbsFile($pdfFile) . "[0]");
         //we only take first page
         // -flatten option, this is necessary for images with transparency, it will produce white background for transparent regions
         $img->setImageAlphaChannel(11);
         //Imagick::ALPHACHANNEL_REMOVE has been added in 3.2.0b2
         $img->mergeImageLayers(imagick::LAYERMETHOD_FLATTEN);
         //set new format
         //@Todo detect format from filename
         $img->setImageFormat('jpg');
         $img->setCompressionQuality(100);
         //save image file
         $img->writeImages($saveTo, false);
     } catch (\Exception $e) {
         error_log($e->getMessage());
         return false;
     }
     return true;
 }

 public function generatePdfImages($fileName, $filePages)
 {
     $pages = 0;
     $json = array();
     if (file_exists(DIR_DOWNLOAD . $this->config->get('msconf_temp_download_path') . $fileName)) {
         if (preg_match('/[^-0-9,]/', $filePages)) {
             $json['errors'][] = $this->language->get('ms_error_product_invalid_pdf_range');
         } else {
             $offsets = explode(',', $filePages);
             foreach ($offsets as $offset) {
                 if (!preg_match('/^[0-9]+(-[0-9]+)?$/', $offset)) {
                     $json['errors'][] = $this->language->get('ms_error_product_invalid_pdf_range');
                     break;
                 }
             }
         }
         if (!empty($json['errors'])) {
             return $json;
         }
         $pathinfo = pathinfo(DIR_DOWNLOAD . $this->config->get('msconf_temp_download_path') . $fileName);
         $list = glob(DIR_IMAGE . $this->config->get('msconf_temp_image_path') . $pathinfo['filename'] . '*\\.png');
         //var_dump($list);
         foreach ($list as $pagePreview) {
             //var_dump('unlinking ' . $pagePreview);
             @unlink($pagePreview);
         }
         $name = DIR_DOWNLOAD . $this->config->get('msconf_temp_download_path') . $fileName . "[" . $filePages . "]";
         $im = new imagick($name);
         $pages = $im->getNumberImages();
         $im->setImageFormat("png");
         $im->setImageCompressionQuality(100);
         $pathinfo = pathinfo(DIR_DOWNLOAD . $this->config->get('msconf_temp_download_path') . $fileName);
         $json['token'] = substr($pathinfo['basename'], 0, strrpos($pathinfo['basename'], '.'));
         if ($im->writeImages(DIR_IMAGE . $this->config->get('msconf_temp_image_path') . $pathinfo['filename'] . '.png', false)) {
             $list = glob(DIR_IMAGE . $this->config->get('msconf_temp_image_path') . $pathinfo['filename'] . '*\\.png');
             foreach ($list as $pagePreview) {
                 $pathinfo = pathinfo($pagePreview);
                 $this->session->data['multiseller']['files'][] = $pathinfo['basename'];
                 $thumb = $this->resizeImage($this->config->get('msconf_temp_image_path') . $pathinfo['basename'], $this->config->get('msconf_image_preview_width'), $this->config->get('msconf_image_preview_height'));
                 $json['images'][] = array('name' => $pathinfo['basename'], 'thumb' => $thumb);
             }
             //var_dump($this->session->data['multiseller']['files']);
             return $json;
         }
     }
 }

<?php

define("JPEG_FILE", __DIR__ . "/imagick_test.jpg");
define("PNG_FILE", __DIR__ . "/imagick_test.png");
$im = new imagick('magick:rose');
$im->writeImage(JPEG_FILE);
$im->clear();
// This is the problematic case, setImageFormat doesn't really
// affect writeImageFile.
// So in this case we want to write PNG but file should come out
// as JPEG
$fp = fopen(PNG_FILE, "w+");
$im->readImage(JPEG_FILE);
$im->setImageFormat('png');
$im->writeImageFile($fp);
$im->clear();
fclose($fp);
// Output the format
$identify = new Imagick(PNG_FILE);
echo $identify->getImageFormat() . PHP_EOL;
// Lets try again, setting the filename rather than format
// This should cause PNG image to be written
$fp = fopen(PNG_FILE, "w+");
$im->readImage(JPEG_FILE);
$im->setImageFilename('png:');
$im->writeImageFile($fp);
$im->clear();
fclose($fp);
// If all goes according to plan, on second time we should get PNG
$identify = new Imagick(PNG_FILE);
echo $identify->getImageFormat() . PHP_EOL;

        } else {
            if (PHP_OS == 'Linux') {
                //Linux平台
                $wbshell1 = "xvfb-run --server-args=\"-screen 0, 1024x768x24\" cutycapt --min-width=460 --url=" . $site_url . " --out=" . $img_name;
                $wbshell2 = "xvfb-run --server-args=\"-screen 0, 1024x768x24\" cutycapt --min-width=1024 --url=" . $site_url . " --out=" . $img_name;
            }
        }
        //根据生成图片的大小调用语句
        $wbshell = $picsize == 1 ? $wbshell1 : $wbshell2;
        //执行截图语句
        system($wbshell);
        //exec($wbshell);
        //注：下面的操作仅是对图片进一步进行调整，可以缩小图片体积等，并方便更多的处理，并非必须。
        $im = new imagick($img_name);
        //if($picsize==1) $im->resizeImage(490,0,Imagick::FILTER_LANCZOS,1);
        $im->setImageFormat("png");
        $im->setCompressionQuality(90);
        $img_name2 = 'html2png/' . time() . '.png';
        $im->writeImage($img_name2);
        $im->clear();
        $im->destroy();
        //输出图片连接
        $url_this = dirname('http://' . $_SERVER['SERVER_NAME'] . $_SERVER["REQUEST_URI"]) . '/' . $img_name2;
    } else {
        $url_this = dirname('http://' . $_SERVER['SERVER_NAME'] . $_SERVER["REQUEST_URI"]) . '/google.png';
    }
    ?>
<div class="wrapper" >
<h1>内容生成工具</h1>
<ul>
    <li><?php 

<?php

phpinfo();
exit;
$pdf = './manual.pdf';
$fp_pdf = fopen($pdf, 'rb');
$img = new imagick();
// [0] can be used to set page number
$img->setResolution(300, 300);
$img->readImageFile($fp_pdf);
$img->setImageFormat("jpg");
$img->setImageCompression(imagick::COMPRESSION_JPEG);
$img->setImageCompressionQuality(90);
$img->setImageUnits(imagick::RESOLUTION_PIXELSPERINCH);
$data = $img->getImageBlob();

 /**
  * Create thumnbnail and return it's URL on success
  *
  * @param  string $path file path
  * @param $stat
  * @return false|string
  * @internal param string $mime file mime type
  * @author Dmitry (dio) Levashov
  */
 protected function createTmb($path, $stat)
 {
     if (!$stat || !$this->canCreateTmb($path, $stat)) {
         return false;
     }
     $name = $this->tmbname($stat);
     $tmb = $this->tmbPath . DIRECTORY_SEPARATOR . $name;
     // copy image into tmbPath so some drivers does not store files on local fs
     if (($src = $this->fopenCE($path, 'rb')) == false) {
         return false;
     }
     if (($trg = fopen($tmb, 'wb')) == false) {
         $this->fcloseCE($src, $path);
         return false;
     }
     while (!feof($src)) {
         fwrite($trg, fread($src, 8192));
     }
     $this->fcloseCE($src, $path);
     fclose($trg);
     $result = false;
     $tmbSize = $this->tmbSize;
     if ($this->imgLib === 'imagick') {
         try {
             $imagickTest = new imagick($tmb);
             $imagickTest->clear();
             $imagickTest = true;
         } catch (Exception $e) {
             $imagickTest = false;
         }
     }
     if ($this->imgLib === 'imagick' && !$imagickTest || ($s = @getimagesize($tmb)) === false) {
         if ($this->imgLib === 'imagick') {
             try {
                 $imagick = new imagick();
                 $imagick->setBackgroundColor(new ImagickPixel($this->options['tmbBgColor']));
                 $imagick->readImage($this->getExtentionByMime($stat['mime'], ':') . $tmb);
                 $imagick->setImageFormat('png');
                 $imagick->writeImage($tmb);
                 $imagick->clear();
                 if (($s = @getimagesize($tmb)) !== false) {
                     $result = true;
                 }
             } catch (Exception $e) {
             }
         }
         if (!$result) {
             unlink($tmb);
             return false;
         }
         $result = false;
     }
     /* If image smaller or equal thumbnail size - just fitting to thumbnail square */
     if ($s[0] <= $tmbSize && $s[1] <= $tmbSize) {
         $result = $this->imgSquareFit($tmb, $tmbSize, $tmbSize, 'center', 'middle', $this->options['tmbBgColor'], 'png');
     } else {
         if ($this->options['tmbCrop']) {
             $result = $tmb;
             /* Resize and crop if image bigger than thumbnail */
             if (!($s[0] > $tmbSize && $s[1] <= $tmbSize || $s[0] <= $tmbSize && $s[1] > $tmbSize) || $s[0] > $tmbSize && $s[1] > $tmbSize) {
                 $result = $this->imgResize($tmb, $tmbSize, $tmbSize, true, false, 'png');
             }
             if ($result && ($s = @getimagesize($tmb)) != false) {
                 $x = $s[0] > $tmbSize ? intval(($s[0] - $tmbSize) / 2) : 0;
                 $y = $s[1] > $tmbSize ? intval(($s[1] - $tmbSize) / 2) : 0;
                 $result = $this->imgCrop($result, $tmbSize, $tmbSize, $x, $y, 'png');
             } else {
                 $result = false;
             }
         } else {
             $result = $this->imgResize($tmb, $tmbSize, $tmbSize, true, true, 'png');
         }
         if ($result) {
             $result = $this->imgSquareFit($result, $tmbSize, $tmbSize, 'center', 'middle', $this->options['tmbBgColor'], 'png');
         }
     }
     if (!$result) {
         unlink($tmb);
         return false;
     }
     return $name;
 }