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小編給大家分享一下PHP中如何實現將幾張照片拼接到一起的合成圖片功能,相信大部分人都還不怎么了解,因此分享這篇文章給大家參考一下,希望大家閱讀完這篇文章后大有收獲,下面讓我們一起去了解一下吧!
具體如下:
<?php /** * 作品合成程序 * 針對單面,封面不做特殊處理 */ $src_path = $argv[1]; // php該文件,第一個參數是文件夾名(作品集),可相對路徑 $dst_path = '../image/'.$src_path; // 生成文件存放的目標位置 if (!file_exists($dst_path)){ mkdir($dst_path); } // 合成圖推薦大小,單頁大小建議:1120*1600 $g_width = 1120; $g_height = 1600; $g_border = 20; // 邊框 // 模板 // 圖片張數=>array(位置=>array(x,y,width,height)) $g_models = array( 1=>array( // 單頁總張數 0=>array( // 位置 'x' => 0 + $g_border, 'y' => 0 + $g_border, 'w' => $g_width - 2*$g_border, 'h' => $g_height - 2*$g_border, ), ), 3=>array( 0=>array( 'x' => 0 + $g_border, 'y' => 0 + $g_border, 'w' => $g_width - 2*$g_border, 'h' => ($g_height - 3*$g_border)/2, ), 1=>array( 'x' => 0 + $g_border, 'y' => 0 + $g_border + ($g_height - 3*$g_border)/2 + $g_border, 'w' => ($g_width - 3*$g_border)/2, 'h' => ($g_height - 3*$g_border)/2, ), 2=>array( 'x' => 0 + $g_border + ($g_width - 3*$g_border)/2 + $g_border, 'y' => 0 + $g_border + ($g_height - 3*$g_border)/2 + $g_border, 'w' => ($g_width - 3*$g_border)/2, 'h' => ($g_height - 3*$g_border)/2, ), ), 4=>array( 0=>array( 'x' => 0 + $g_border, 'y' => 0 + $g_border, 'w' => ($g_width-3*$g_border)/2, 'h' => ($g_height-3*$g_border)/2, ), 1=>array( 'x' => 0 + $g_border + ($g_width-3*$g_border)/2 + $g_border, 'y' => 0 + $g_border, 'w' => ($g_width-3*$g_border)/2, 'h' => ($g_height-3*$g_border)/2, ), 2=>array( 'x' => 0 + $g_border, 'y' => 0 + $g_border + ($g_height-3*$g_border)/2 + $g_border, 'w' => ($g_width-3*$g_border)/2, 'h' => ($g_height-3*$g_border)/2, ), 3=>array( 'x' => 0 + $g_border + ($g_width-3*$g_border)/2 + $g_border, 'y' => 0 + $g_border + ($g_height-3*$g_border)/2 + $g_border, 'w' => ($g_width-3*$g_border)/2, 'h' => ($g_height-3*$g_border)/2, ), ), ); // 排版 $g_tasks = array( 0 => array(0), // 封面封底 1 => array(1), 2 => array(2), 3 => array(3), 4 => array(4,5,6), 5 => array(7), 6 => array(8), 7 => array(9,10,11), 8 => array(12), 9 => array(13), 10 => array(14,15,16), 11 => array(17), 12 => array(18), 13 => array(19,20,21), 14 => array(22), 15 => array(23), 16 => array(24,25,26), 17 => array(27,28,29), 18 => array(30), 19 => array(31), 20 => array(32,33,34), 21 => array(35), 22 => array(36), 23 => array(37), 24 => array(38,39,40,41), 25 => array(42,43,44), 26 => array(45), 27 => array(46), 28 => array(47,48,49), 29 => array(50), 30 => array(51), ); // 獲取文件夾下的所有圖片名 $jpgs = array(); $files = scandir($src_path); // 目錄下所有文件名 foreach($files as $file){ $path_parts = pathinfo($src_path.'/'.$file); if($path_parts['extension'] == 'jpg'){ $jpgs[] = $src_path.'/'.$file; } } // 判斷圖片總數 if(count($jpgs) != 52){ echo '圖片總數有誤:'.count($jpgs).'/52'.nl2br("\n"); die(); } // 自然排序 usort($jpgs, "strnatcmp"); foreach($g_tasks as $page=>$photos){ $files = array(); foreach($photos as $r){ $files[] = $jpgs[$r]; } $image_all = imagemake($files); $filename = $page.'.jpg'; imagejpeg($image_all, $dst_path.'/'.$filename); unset($files); echo $filename.nl2br("\n"); } echo 'ok'.nl2br("\n"); die(); /** * 合成圖片 * @param array $images 本頁圖片集合 * @return resource 合成后的圖片 */ function imagemake($files=array()){ global $g_width,$g_height,$g_models; // 合成后的圖片 $image_all = imageCreatetruecolor($g_width,$g_height); // 為真彩色畫布創建白色背景 $color = imagecolorallocate($image_all, 255, 255, 255); imagefill($image_all, 0, 0, $color); // imageColorTransparent($image_all, $color); // 背景透明 //function imagecopyresampled ($dst_image, $src_image, $dst_x, $dst_y, $src_x, $src_y, $dst_w, $dst_h, $src_w, $src_h) // 排版合成 $type = count($files); switch($type){ case 2: break; case 1: case 3: case 4: // 用于合成的圖片集 $images = array(); // 修正圖片 for($i=0;$i<$type;$i++){ $images[] = imagecropper($files[$i],$g_models[$type][$i]['w'],$g_models[$type][$i]['h']); } // 排版合成 for($i=0;$i<$type;$i++){ imagecopyresampled($image_all,$images[$i], $g_models[$type][$i]['x'],$g_models[$type][$i]['y'],0,0, $g_models[$type][$i]['w'],$g_models[$type][$i]['h'],imagesx($images[$i]),imagesy($images[$i])); } break; default: break; } return $image_all; } /** * 修剪圖片:居中裁剪等比縮放 * @param $source_path 原圖路徑 * @param $target_width 目標寬度 * @param $target_height 目標高度 * @return bool|resource */ function imagecropper($source_path, $target_width, $target_height){ $source_info = getimagesize($source_path); $source_width = $source_info[0]; $source_height = $source_info[1]; $source_mime = $source_info['mime']; $source_ratio = $source_height / $source_width; $target_ratio = $target_height / $target_width; switch ($source_mime) { case 'image/gif': $source_image = imagecreatefromgif($source_path); break; case 'image/jpeg': $source_image = imagecreatefromjpeg($source_path); break; case 'image/png': $source_image = imagecreatefrompng($source_path); break; default: return false; break; } // 橫豎構圖不同,旋轉 if(($target_width-$target_height)*($source_width-$source_height)<0){ // 旋轉 $source_image = imagerotate($source_image, 90, 0); $source_width = $source_info[1]; // [0] $source_height = $source_info[0]; // [1] $source_ratio = $source_height / $source_width; } // 源圖過高 if ($source_ratio > $target_ratio) { $cropped_width = $source_width; $cropped_height = $source_width * $target_ratio; $source_x = 0; $source_y = ($source_height - $cropped_height) / 2; } // 源圖過寬 elseif ($source_ratio < $target_ratio) { $cropped_width = $source_height / $target_ratio; $cropped_height = $source_height; $source_x = ($source_width - $cropped_width) / 2; $source_y = 0; } // 源圖適中 else { $cropped_width = $source_width; $cropped_height = $source_height; $source_x = 0; $source_y = 0; } $target_image = imagecreatetruecolor($target_width, $target_height); $cropped_image = imagecreatetruecolor($cropped_width, $cropped_height); // 裁剪 imagecopy($cropped_image, $source_image, 0, 0, $source_x, $source_y, $cropped_width, $cropped_height); // 縮放 imagecopyresampled($target_image, $cropped_image, 0, 0, 0, 0, $target_width, $target_height, $cropped_width, $cropped_height); return $target_image; }
PS:該代碼應用于命令行模式,且需要注意圖片文件夾路徑。
以上是“PHP中如何實現將幾張照片拼接到一起的合成圖片功能”這篇文章的所有內容,感謝各位的閱讀!相信大家都有了一定的了解,希望分享的內容對大家有所幫助,如果還想學習更多知識,歡迎關注億速云行業資訊頻道!
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