Divide photo to X and Y pieces - php

Question

I have a 96x96 image and i need to divide it in 36 pieces of 16x16 and i have a script given below works fine on my localhost but not working on my webhost.
function makeTiles($name, $imageFileName, $crop_width, $crop_height)
{
$dir = "/pic";
$slicesDir = "/pic/16X16";
// might be good to check if $slicesDir exists etc if not create it.
$ImgExt = split(".",$imageFileName);
$inputFile = $dir . $imageFileName;
$img = new Imagick($inputFile);
$imgHeight = $img->getImageHeight();
$imgWidth = $img->getImageWidth();
$cropWidthTimes = ceil($imgWidth/$crop_width);
$cropHeightTimes = ceil($imgHeight/$crop_height);
for($i = 0; $i < $cropWidthTimes; $i++)
{
for($j = 0; $j < $cropHeightTimes; $j++)
{
$img = new Imagick($inputFile);
$x = ($i * $crop_width);
$y = ($j * $crop_height);
$img->cropImage($crop_width, $crop_height, $x, $y);
$data = $img->getImageBlob();
$newFileName = $slicesDir . $name . "_" . $x . "_" . $y . ".".$ImgExt[1];
$result = file_put_contents ($newFileName, $data);
}
}
}
Getting fatal error
Fatal error: Class 'Imagick' not found in myfile.php line number
My host saying:
Imagick and image magic both are same unfortunately, we do not have
them as a PHP module we have binaries like ImageMagick binary and
Image magic path is /usr/local/bin. Include this function in your
script and check the website functionality from your end.
I dont know how to fix this error.

Answer 1

If I understand it correctly you will have to invoke the imagick binary from your script using exec():
exec('/usr/local/bin/convert '.$inputFile.' -crop 96x96+ox+oy '.$newFilename);
The ox and oy should be replaced with the correct offset values.
Here is are a couple of links that might help:
How do I use Imagick binaries from php
Imagick - Convert Command-line tool