DJPEG, CJPEG and PNMSCALE alternatives??

[Anon]

Hi all!
My web host does'nt seem to support the DJPEG, CJPEG and PNMSCALE utils..I'm told that I can use GD library instead. Now, the prob is I an NEW to PHP and have no idea how to write the following "un-supported" lines with GD "alteratives". Could someone PLEASE PLEASE help?

$x = 100;
$y = 150;
$tmp_tmb = "/tmp/$newname.tmb";
$command = "djpeg -pnm $filename | pnmscale -xsize $x -ysize $y | cjpeg > $tmp_tmb";
system($command);
echo $tmp_tmb;

[[deleted]]

Please please start by reading the GD-function descriptions in the PHP manual.
It's not that difficult.

[Anon]

thanks a lot vincent! but, did I mention that I'm a newbie!!? I really dont know how to do it!! Anyone out there?

[[deleted]]

Did you read the manual? it explains how to get the GD to work. Even a newbie should be able to do it.

[Anon]

I tried vincent..invain :_(

Here's what I ended up with:

$x = 100;
$y = 150;

$src = ImageCreateFromJpeg($filename);
$dst = ImageCreate($x,$y);
ImageCopyResized($dst, $src, 0, 0, 0, 0,$x,$y,$width,$height);
ImageJpeg($dst, $new_file_name, -1);
ImageDestroy($src);
ImageDestroy($dst);

if ( copy($filename, $new_file_name) )
{
echo "copied to archive folder!";
if ( copy($tmp_tmb, $new_thumb_name) )
{
echo "copied to thumbnail folder";
return true;
}
else
{
echo "Error copying to thumbnail folder!!.<br>\n";
}
}
else
{
echo "Error copying to archives folder!!<br>\n";
}
return false;
}

How would I get the thumbnail image in to the thumbnails folder?? Can the GD Lib functions be assigned to variables?? I mean, can I give:

$thumb=ImageJpeg($dst, $new_file_name, -1); ???

My basic aim here is to resize the src image and put the source and the thumbnail in to two different folders.

[[deleted]]

What's the error you get?

and since when can you give a 'quality' factor of -1?

Did you read the manual sections about all those functions?

[Anon]

NO LUCK! Its simply doesn't work :_(

Please help! Here's the code:

function copy_file($filename,$newname, $orientation)
{
global $dir_arq;
global $dir_thumb;

$file = basename($filename);

$tmp_upload_path = "/tmp/";
$new_file_name = $dir_arq . $newname;
$new_thumb_name = $dir_thumb . $newname;

$size = GetImageSize($filename);
$width = $size[0];
$height = $size[1];

if ($orientation == 0 )
{
//Landscape
$x = 150;
$y = 100;
}
else
{
//portrait
$x = 100;
$y = 150;
}
$src = ImageCreateFromJpeg($filename);
$dst = ImageCreate($x,$y);
ImageCopyResized($dst, $src, 0, 0, 0, 0,$x,$y,$width,$height);
ImageJpeg($dst, $new_file_name, 1);

if ( copy($src, $new_file_name) )
{
echo "copied to archive folder!";
if ( copy($dst, $new_thumb_name) )
{
echo "copied to thumbnail folder";
return true;
}
else
{
echo "<br><br><script> alert('Error copying to thumbnails folder!');document.location.href=\"index.php?SID=$SID\" ;</script>";
}
}
else
{
echo "<br><br><script> alert('Error copying to archives folder!');document.location.href=\"index.php?SID=$SID\" ;</script>";
}
return false;
}
ImageDestroy($src);
ImageDestroy($dst);

if ( $img == "ok" )
{
$sql = "INSERT INTO images (img_description, img_date, img_format, FK_cat_id, FK_phot_id, img_name, img_orientation, img_photographer, img_caption) VALUES ('$description', '$gbl_date','$File_type', '$category', '1', '$File_name', '$orientation', '$photographer', '$caption')";
mysql_query( $sql );

    $idget = mysql_insert_id();

    //imagem
    copy_file($File, $idget, $orientation );

    echo "<br><br><script> alert('Inserted picture successfully!');document.location.href=\"index.php?SID=$SID\" ;</script>";

}