Codeigniter image resize?

Question

I have problem with image class in CI?

This is example

On controller:

$this->load->library( array('image_lib') );

On view i have this:

    foreach($results as $row)
        {

$config['image_library'] = 'gd2';
$config['source_image'] = '/img/proizvodi/'.$row->proizvodid.'.jpg';
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width']     = 75;
$config['height']   = 50;


$this->load->library('image_lib', $config); 
$this->image_lib->resize();
}

But i got no error, and thumb image is not created? I dont know where is mistake?

echo $this->image_lib->display_errors(); Check Image_lib error like using this function. — Ts8060
– Ts8060, Commented Oct 8, 2013 at 0:14

Andrei Zhamoida · Accepted Answer · 2013-10-07 07:39:41Z

26

You shouldn't load image_lib in foreach. Try to use code below

$this->load->library('image_lib');
foreach($results as $row) {
    $config['image_library'] = 'gd2';
    $config['source_image'] = '/img/proizvodi/'.$row->proizvodid.'.jpg';
    $config['create_thumb'] = TRUE;
    $config['maintain_ratio'] = TRUE;
    $config['width']     = 75;
    $config['height']   = 50;

    $this->image_lib->clear();
    $this->image_lib->initialize($config);
    $this->image_lib->resize();
}

If it wont work - check the upload folder permissions.

answered Oct 7, 2013 at 7:39

Andrei Zhamoida

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Qaisar Satti · Accepted Answer · 2016-01-30 15:56:22Z

function uploadimage()
    {

        $file_name                  = $this->input->post('fileName');
        $imageName                  = 'set_'.file_name($_FILES["file"]['name'],date('Ymd_his'));
        $config['image_library']    = 'gd2';
        $config['source_image']     = $imageName;
        $config['create_thumb']     = TRUE;
        $config['maintain_ratio']   = TRUE;
        $config['master_dim']       = 'width'; 
        upload_resize('file','settings', $imageName );
        $config['width']            = 200;
        $config['height']           = 62;

        $this->load->library('image_lib', $config);
        $this->image_lib->initialize($config);
        $this->image_lib->resize();
        $this->image_lib->clear();
        $json_data = array(
                'error'     =>false,
                'tmp_name'  =>$file_name,
                'file_name' =>base_url().'assets/uploads/settings/'.$imageName.'?dummy='.rand(0,1000),
                'file_path' =>$imageName
        );

        echo json_encode($json_data);
    }
}

this code upload image to folder before save to table.

HDJEMAI · Accepted Answer · 2017-05-15 00:17:29Z

$config['upload_path']          = './berkas/content/';
$config['allowed_types']        = 'gif|jpg|png';
$config['max_size']             = 0;
$config['max_width']            = 1024000;
$config['max_height']           = 7680000;
$config['encrypt_name']           = TRUE;
$config['overwrite']           = FALSE;

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

        $upload_data = $this->upload->data();
        $file_name = $upload_data['file_name'];            
        $params['gambar'] = $file_name;
        $this->load->library('image_lib');
        $config['image_library'] = 'gd2';
        $config['source_image'] = './berkas/content/'.$file_name;
        $config['create_thumb'] = FALSE;
        $config['maintain_ratio'] = TRUE;
        $config['width']     = 550;
        $config['height']   = 350;

$params = array('gambar' => $file_name);

Paritosh Pandey · Accepted Answer · 2017-11-04 04:40:24Z

If the destination image contains a different aspect ratio than the source image, then the source image will be cropped in the same ratio of the destination image have.

public function resize_image($image_data){
$this->load->library('image_lib');
$w = $image_data['image_width']; // original image's width
$h = $image_data['image_height']; // original images's height

$n_w = 273; // destination image's width
$n_h = 246; // destination image's height

$source_ratio = $w / $h;
$new_ratio = $n_w / $n_h;
if($source_ratio != $new_ratio){

    $config['image_library'] = 'gd2';
    $config['source_image'] = './uploads/uploaded_image.jpg';
    $config['maintain_ratio'] = FALSE;
    if($new_ratio > $source_ratio || (($new_ratio == 1) && ($source_ratio < 1))){
        $config['width'] = $w;
        $config['height'] = round($w/$new_ratio);
        $config['y_axis'] = round(($h - $config['height'])/2);
        $config['x_axis'] = 0;

    } else {

        $config['width'] = round($h * $new_ratio);
        $config['height'] = $h;
        $size_config['x_axis'] = round(($w - $config['width'])/2);
        $size_config['y_axis'] = 0;

    }

    $this->image_lib->initialize($config);
    $this->image_lib->crop();
    $this->image_lib->clear();
}
$config['image_library'] = 'gd2';
$config['source_image'] = './uploads/uploaded_image.jpg';
$config['new_image'] = './uploads/new/resized_image.jpg';
$config['maintain_ratio'] = TRUE;
$config['width'] = $n_w;
$config['height'] = $n_h;
$this->image_lib->initialize($config);

if (!$this->image_lib->resize()){

    echo $this->image_lib->display_errors();

} else {

    echo "done";

}}

I have prepared a step by step guide on how to resize image in codeigniter without loosing quality

Pratik Gadoya · Accepted Answer · 2017-12-20 13:01:29Z

I have tried below code. Please check.

if (isset($_FILES['image']) && !empty($_FILES['image']['name'])) {
    $upload_path="uploads/foldername/";
    $newFileName = explode(".",$_FILES['image']['name']);
    $filename = time()."-".rand(00,99).".".end($newFileName);
    $filename_new = time()."-".rand(00,99)."_new.".end($filename);
    $config['file_name'] = $filename;
    $config['upload_path'] = $upload_path;
    $config['allowed_types'] = 'gif|jpg|png|jpeg'; 
    $this->load->library('upload', $config);

    if ($this->upload->do_upload('image')) 
    { 
    //Image Resizing 
    $config1['source_image'] = $this->upload->upload_path.$this->upload->file_name;
    $config1['new_image'] =  'uploads/foldername/'.$filename_new;
    $config1['maintain_ratio'] = FALSE;
    $config1['width'] = 181;
    $config1['height'] = 181; 
    $this->load->library('image_lib', $config1); 
    if ( ! $this->image_lib->resize()){ 
    $this->session->set_flashdata('message', $this->image_lib->display_errors('', ''));

    }
    $post_data['image'] = $filename;
    }
    else
    { 
    $this->session->set_flashdata('msg',$this->upload->display_errors());
    }
}

metalbox · Accepted Answer · 2019-02-13 22:24:48Z

The problem is that you are loading the library inside the loop, that is the error, if you edit 10 images you will load the library 10 times, big mistake, the library must be loaded in the constructor or out of the loop.

Wrong

    foreach($results as $row)
        {

$config['image_library'] = 'gd2';
$config['source_image'] = '/img/proizvodi/'.$row->proizvodid.'.jpg';
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width']     = 75;
$config['height']   = 50;


$this->load->library('image_lib', $config); 
$this->image_lib->resize();
}

Right

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

foreach($results as $row)
        {

$config['image_library'] = 'gd2';
$config['source_image'] = '/img/proizvodi/'.$row->proizvodid.'.jpg';
$config['create_thumb'] = TRUE;
$config['maintain_ratio'] = TRUE;
$config['width']     = 75;
$config['height']   = 50;    


$this->image_lib->initialize($config);
$this->image_lib->resize();
 $this->image_lib->clear();
}

itsDann · Accepted Answer · 2020-12-10 09:47:08Z

0

May this function will help someone

function compressimg($gbr,$path){
            $wd =$gbr['image_width']*0.4; //0.4 mean compress to 40% image_size
            $hh =$gbr['image_height']*0.4; //modify yours
            //Compress Image
            $config['image_library']    = 'gd2';
            $config['source_image']     = $path.$gbr['file_name'];
            $config['create_thumb']     = FALSE;
            $config['maintain_ratio']   = FALSE;
            $config['quality']          = '50%';
            $config['width']            = round($wd);
            $config['height']           = round($hh);
            $config['new_image']        = $path.$gbr['file_name'];

            $this->load->library('image_lib', $config);
            $this->image_lib->resize();
            
            return $gbr['full_path'];

            // Put This On Uploader , by user4xn
            // return $this->compressimg($this->upload->data(),$config['upload_path']);
}

answered Dec 10, 2020 at 9:47

itsDann

1

1 Comment

Vickel Over a year ago

While this code may answer the question, providing additional context regarding how and/or why it solves the problem would improve the answer's long-term value.

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