duanrong5167 2014-05-29 09:43
浏览 94
已采纳

如何在Codeigniter中创建图像水印wm_type overlay?

I am trying to put an image over another image (watermark) like so:

class Water_mark extends CI_Controller {

    function __construct() {
        parent::__construct();
    }

    function index() {
        $this->load->library('image_lib');
        $config['image_library'] = 'GD2';
        $config['source_image'] = '/assets/images/tv-share.jpg';
        $config['new_image'] = '/assets/images/tv-share-done.jpg';
        $config['wm_type'] = 'overlay';
        $config['wm_overlay_path'] = '/assets/images/share_en.jpg';
        $config['wm_opacity'] = '50';
        $config['wm_vrt_alignment'] = 'top'; 
        $config['wm_hor_alignment'] = 'left';
        $config['wm_hor_offset'] = '10';
        $config['wm_vrt_offset'] = '10';

        $data = $config;
        $this->image_lib->initialize($config);

        if (!$this->image_lib->watermark()) {
            echo $this->image_lib->display_errors();
        }
        $this->image_lib->clear();

        $this->load->view('water_mark_view', $data);
    }

}

but I keep getting errors:

A PHP Error was encountered
Severity: Warning
Message: imagecolorat() expects parameter 1 to be resource, boolean given
Filename: libraries/Image_lib.php
Line Number: 941
A PHP Error was encountered
Severity: Warning
Message: imagecolorat() expects parameter 1 to be resource, boolean given
Filename: libraries/Image_lib.php
Line Number: 953
A PHP Error was encountered
Severity: Warning
Message: imagecolortransparent() expects parameter 1 to be resource, boolean given
Filename: libraries/Image_lib.php
Line Number: 953
A PHP Error was encountered
Severity: Warning
Message: imagecopymerge() expects parameter 1 to be resource, boolean given
Filename: libraries/Image_lib.php
Line Number: 954
The path to the image is not correct.
The path to the image is not correct.
The path to the image is not correct.
Your server does not support the GD function required to process this type of image.
Your server does not support the GD function required to process this type of image.
Your server does not support the GD function required to process this type of image.

GD phpinfo

What am I missing?

  • 写回答

1条回答 默认 最新

  • duan19780629 2014-05-29 10:31
    关注

    The issue was as simple as removing the forward slash (although in the documentation example the forward slash exists) at he beginning like so:

    $config['source_image'] = 'assets/images/tv-share.jpg';
    $config['new_image'] = 'assets/images/tv-share-done.jpg';
    $config['wm_overlay_path'] = 'assets/images/share_en.jpg';
    

    what got me confused this error:

    Your server does not support the GD function required to process this type of image.

    I never thought it was only a path issue when I saw the error above.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
    评论

报告相同问题?

悬赏问题

  • ¥20 腾讯企业邮箱邮件可以恢复么
  • ¥15 有人知道怎么将自己的迁移策略布到edgecloudsim上使用吗?
  • ¥15 错误 LNK2001 无法解析的外部符号
  • ¥50 安装pyaudiokits失败
  • ¥15 计组这些题应该咋做呀
  • ¥60 更换迈创SOL6M4AE卡的时候,驱动要重新装才能使用,怎么解决?
  • ¥15 让node服务器有自动加载文件的功能
  • ¥15 jmeter脚本回放有的是对的有的是错的
  • ¥15 r语言蛋白组学相关问题
  • ¥15 Python时间序列如何拟合疏系数模型