Voici la solution pour rem\u00e9dier \u00e0 ce probl\u00e8me :<\/strong><\/span><\/p>\n <\/p>\n 1) Cr\u00e9ez un fichier nomm\u00e9 \u00ab\u00a0imageManager.php\u00a0\u00bb dans le dossier \u00ab\u00a0override\/classes\u00a0\u00bb et ajoutez-le code suivant:<\/p>\n 2) Allez dans le back-office de prestashop, Pr\u00e9f\u00e9rences > Images > Reg\u00e9n\u00e9rer les miniatures et cliquez sur le bouton \u00ab\u00a0Reg\u00e9n\u00e9rer des miniatures\u00a0\u00bb . Selon peut prendre un peu de temps….<\/p>\n<?php\r\nclass ImageManager extends ImageManagerCore\r\n{\r\n\r\n\t\/**\r\n\t * Resize, cut and optimize image\r\n\t *\r\n\t * @param string $src_file Image object from $_FILE\r\n\t * @param string $dst_file Destination filename\r\n\t * @param integer $dst_width Desired width (optional)\r\n\t * @param integer $dst_height Desired height (optional)\r\n\t * @param string $file_type\r\n\t * @return boolean Operation result\r\n\t *\/\r\n\tpublic static function resize($src_file, $dst_file, $dst_width = null, $dst_height = null, $file_type = 'jpg', $force_type = false)\r\n\t{\r\n\t\tif (PHP_VERSION_ID < 50300)\r\n\t\t\tclearstatcache();\r\n\t\telse\r\n\t\t\tclearstatcache(true, $src_file);\r\n\t\t\r\n\t\tif (!file_exists($src_file) || !filesize($src_file))\r\n\t\t\treturn false;\r\n\t\tlist($src_width, $src_height, $type) = getimagesize($src_file);\r\n\r\n\t\t\/\/ If PS_IMAGE_QUALITY is activated, the generated image will be a PNG with .jpg as a file extension.\r\n\t\t\/\/ This allow for higher quality and for transparency. JPG source files will also benefit from a higher quality\r\n\t\t\/\/ because JPG reencoding by GD, even with max quality setting, degrades the image.\r\n\t\tif (Configuration::get('PS_IMAGE_QUALITY') == 'png_all'\r\n\t\t\t|| (Configuration::get('PS_IMAGE_QUALITY') == 'png' && $type == IMAGETYPE_PNG) && !$force_type)\r\n\t\t\t$file_type = 'png';\r\n\r\n\t\tif (!$src_width)\r\n\t\t\treturn false;\r\n\t\tif (!$dst_width)\r\n\t\t\t$dst_width = $src_width;\r\n\t\tif (!$dst_height)\r\n\t\t\t$dst_height = $src_height;\r\n\r\n\t\t$src_image = ImageManager::create($type, $src_file);\r\n\r\n\t\t$width_diff = $dst_width \/ $src_width;\r\n\t\t$height_diff = $dst_height \/ $src_height;\r\n\r\n\t\tif ($width_diff > 1 && $height_diff > 1)\r\n\t\t{\r\n\t\t\t$next_width = $src_width;\r\n\t\t\t$next_height = $src_height;\r\n\t\t}\r\n\t\telse\r\n\t\t{\r\n\t\t\tif (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 2 OR (intval(Configuration::get('PS_IMAGE_GENERATION_METHOD')) == 0 AND $heightDiff > $widthDiff))\r\n\r\n\t\t\t{\r\n\t\t\t\t$next_height = $dst_height;\r\n\t\t\t\t$next_width = round(($src_width * $next_height) \/ $src_height);\r\n\t\t\t\t$dst_width = (int)(!Configuration::get('PS_IMAGE_GENERATION_METHOD') ? $dst_width : $next_width);\r\n\t\t\t}\r\n\t\t\telse\r\n\t\t\t{\r\n\t\t\t\t$next_width = $dst_width;\r\n\t\t\t\t$next_height = round($src_height * $dst_width \/ $src_width);\r\n\t\t\t\t$dst_height = (int)(!Configuration::get('PS_IMAGE_GENERATION_METHOD') ? $dst_height : $next_height);\r\n\t\t\t}\r\n\t\t}\r\n\r\n\t\tif (!ImageManager::checkImageMemoryLimit($src_file))\r\n\t\t\treturn false;\r\n\t\t\r\n\t\t$dest_image = imagecreatetruecolor($dst_width, $dst_height);\r\n\r\n\t\t\/\/ici on applique un fond transparent quelque soit le type de fichier.\r\n\t\timagealphablending($dest_image, false);\r\n\t\timagesavealpha($dest_image, true);\r\n\t\t$transparent = imagecolorallocatealpha($dest_image, 255, 255, 255, 127);\r\n\t\timagefilledrectangle($dest_image, 0, 0, $dst_width, $dst_height, $transparent);\r\n\r\n\t\timagecopyresampled($dest_image, $src_image, (int)(($dst_width - $next_width) \/ 2), (int)(($dst_height - $next_height) \/ 2), 0, 0, $next_width, $next_height, $src_width, $src_height);\r\n\t\treturn (ImageManager::write($file_type, $dest_image, $dst_file));\r\n\t}\r\n}\r\n\r\n<\/pre>\n
![\"Prestashop](\"http:\/\/www.majory-cubizolles.fr\/blog\/wp-content\/uploads\/2015\/05\/Capture-d\u2019\u00e9cran-2015-05-25-\u00e0-21.39.06.png\")
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