Question

当我裁剪图像时，它会变成完全黑色的？为什么？？

$config['upload_path'] = $_SERVER['DOCUMENT_ROOT'].'/website/uploads/original/'; $config['allowed_types'] = 'gif|jpg|png|bmp|jpeg';

    $this->load->library('upload'); $this->upload->initialize($config);   


    if(!$this->upload->do_upload()) {    $error = array('error' => $this->upload->display_errors());    $this->load->view('submit', $error); } else {    $data['upload_data'] = array('upload_data' => $this->upload->data());    $file_name
    = $this->upload->file_name;

       list($image_width, $image_height) = getimagesize($_SERVER['DOCUMENT_ROOT'].'/website/uploads/original/'.$file_name);

       // create small size    $config['image_library'] = 'GD2';    $config['source_image'] = $_SERVER['DOCUMENT_ROOT'].'/website/uploads/original/'.$file_name; $config['new_image'] = $_SERVER['DOCUMENT_ROOT'].'/website/uploads/small/'.$file_name; $config['maintain_ratio'] = TRUE;    $config['width'] = 181;    $config['height'] = 115;    $config['master_dim'] = 'width';

       $this->load->library('image_lib');  $this->image_lib->initialize($config);

       if($image_width >= $config['width'] AND $image_height >= $config['height'])    {
          if (!$this->image_lib->resize())
          {
             echo $this->image_lib->display_errors();
          } else {
             if(file_exists($_SERVER['DOCUMENT_ROOT'].'/website/uploads/small/'.$file_name))

             {
                list($image_width, $image_height) = getimagesize($_SERVER['DOCUMENT_ROOT'].'/website/uploads/small/'.$file_name);
                if($image_height > '115')
                { 
               $config['source_image'] = $_SERVER['DOCUMENT_ROOT'].'/website/uploads/small/'.$file_name;
               $y_axis = $image_height - 115;
               $config['y_axis'] = $y_axis;
               $config['x_axis'] = 181;
               $this->image_lib->initialize($config);
               if (!$this->image_lib->crop())
                   {
                      echo $this->image_lib->display_errors();
                   } else {
                      echo "cropped";    
               }
             }
          }    } }

Answer 1

我相信CI使用标准的PHP GD模块。以前我发现，如果您使用的图像有点损坏，它仍会正常显示，但一旦调整大小，您只需得到一个黑盒子。

您是否尝试过使用其他任何图片？不同类型的图像（png / jpg / etc）？

Codeigniter - 裁剪后的图像变黑

1 个答案: