Php 如何更改背景色裁剪图像\u lib Codeigniter
我已经搜索了很多网站,想在codeigniter中裁剪图像时改变背景颜色,但并没有结果 当我使用image_lib GD2 Codeigniter裁剪图像时,我有一张图像。偏移图像背景颜色为黑色。这是图片 如何改变这一点? 这是我的代码:Php 如何更改背景色裁剪图像\u lib Codeigniter,php,codeigniter,gd2,Php,Codeigniter,Gd2,我已经搜索了很多网站,想在codeigniter中裁剪图像时改变背景颜色,但并没有结果 当我使用image_lib GD2 Codeigniter裁剪图像时,我有一张图像。偏移图像背景颜色为黑色。这是图片 如何改变这一点? 这是我的代码: $config['image_library'] = 'gd2'; $config['source_image'] = './uploads/thumb/thumb_'.$fileName; $config['width']
$config['image_library'] = 'gd2';
$config['source_image'] = './uploads/thumb/thumb_'.$fileName;
$config['width'] = 200;
$config['height'] = 250;
$config['maintain_ratio'] = FALSE;
$config['x_axis'] = '20';
$config['y_axis'] = '0';
$this->image_lib->clear();
$this->image_lib->initialize($config);
$this->image_lib->crop();
有人能帮我吗?对不起,我的英语不好,谢谢你的回答。我就是这样做的:
public function saveImage($web_id, $user_id, $photo, $index = -1, $path=false, $crop = true, $crop_x = 0, $crop_y = 0, $width = 0, $height = 0)
{
/* Image upload */
$this->ci->load->helper("string");
$this->ci->load->library('upload');
if(!$path)
$path = getcwd().'/assets/img/locations/'.$user_id."/".$web_id;
else
$path = getcwd().$path;
$config['upload_path'] = $path;
$config['allowed_types'] = 'gif|jpg|png|jpeg';
$config['file_name'] = random_string('alpha', 39);
$config['overwrite'] = true;
$this->ci->upload->initialize($config);
if (!$this->ci->upload->do_upload($photo, $index))
{
/*echo "<br>path: ".$config['upload_path']."<br>";
echo "user_id: ".$user_id." web_id: ".$web_id." error: ". $this->ci->upload->display_errors();
die;*/
$photo = '';
}
else{
$image_data = $this->ci->upload->data();
$photo = $image_data['file_name'];
if($crop)
{
$this->ci->load->library('image_lib');
$config = array(
'image_library' => 'gd',
'source_image' => $image_data['full_path'],
'new_image' => $path,
'x_axis' => $crop_x,
'y_axis' => $crop_y,
'width' => $width,
'height' => $height,
'overwrite' => true,
'maintain_ratio' => false
);
$this->ci->image_lib->initialize($config);
if ( ! $this->ci->image_lib->crop())
{
echo $this->ci->image_lib->display_errors();
die;
}
}
}
return $photo;
}
公共函数saveImage($web\u id、$user\u id、$photo、$index=-1、$path=false、$crop=true、$crop\u x=0、$crop\u y=0、$width=0、$height=0)
{
/*图像上传*/
$this->ci->load->helper(“字符串”);
$this->ci->load->library('upload');
如果(!$path)
$path=getcwd()。/assets/img/locations/'.$user\u id.“/”$web\u id;
其他的
$path=getcwd().$path;
$config['upload_path']=$path;
$config['allowed_types']='gif | jpg | png | jpeg';
$config['file_name']=随机字符串('alpha',39);
$config['overwrite']=true;
$this->ci->upload->initialize($config);
如果(!$this->ci->upload->do_upload($photo,$index))
{
/*echo“
路径:”.$config['upload_path']。“
”;
echo“user\u id:”.$user\u id。“web\u id:”.$web\u id。“错误:”.$this->ci->upload->display\u errors();
死亡*/
$photo='';
}
否则{
$image_data=$this->ci->upload->data();
$photo=$image_data['file_name'];
如果(作物)
{
$this->ci->load->lib('image_lib');
$config=array(
“图像库”=>“gd”,
“源图像”=>$image\u数据[“完整路径”],
“新建图像”=>$path,
“x_轴”=>$crop_x,
“y轴”=>$crop\U y,
“宽度”=>$width,
“高度”=>$height,
“覆盖”=>true,
“保持_比率”=>错误
);
$this->ci->image\u lib->initialize($config);
如果(!$this->ci->image_lib->crop())
{
echo$this->ci->image_lib->display_errors();
死亡
}
}
}
返回$photo;
}
有很多东西你不需要使用,但你可以用它作为基础
我希望它能帮助您。为什么要添加
x轴
和y轴
。?有人能回答这个问题吗?这不是答案。除了一些陈词滥调,你没有做任何与OP不同的事情,也没有处理背景色。