i want to crop a .tif format image using php -


i want crop .tif format image using php . have done if image in .jpg , gif or png format want crop .tif image dimensions i.e 200x200 right full image of 1024x1024.please consider .tif format .

http://rkwebsolutions.in.md-16.webhostbox.net/check/8713855051.tif

i use function jpeg/png/gif format image unable crop .tif image 

function cropimage($source_image, $target_image, $crop_area) {     // detect source image type extension     $source_file_name = basename($source_image);     $source_image_type = substr($source_file_name, -3, 3);      // create image resource source image       switch(strtolower($source_image_type))     {         case 'jpg':             $original_image = imagecreatefromjpeg($source_image);             break;          case 'gif':             $original_image = imagecreatefromgif($source_image);             break;          case 'png':             $original_image = imagecreatefrompng($source_image);             break;              default:             trigger_error('cropimage(): invalid source image type', e_user_error);             return false;     }      // create blank image having same width , height crop area     // our cropped image     $cropped_image = imagecreatetruecolor($crop_area['width'], $crop_area['height']);      // copy crop area source image blank image created above     imagecopy($cropped_image, $original_image, 0, 0, $crop_area['left'], $crop_area['top'],                $crop_area['width'], $crop_area['height']);      // detect target image type extension     $target_file_name = basename($target_image);     $target_image_type = substr($target_file_name, -3, 3);      // save cropped image disk     switch(strtolower($target_image_type))     {         case 'jpg':             imagejpeg($cropped_image, $target_image, 100);             break;          case 'gif':             imagegif($cropped_image, $target_image);             break;          case 'png':             imagepng($cropped_image, $target_image, 0);             break;              default:             trigger_error('cropimage(): invalid target image type', e_user_error);             imagedestroy($cropped_image);             imagedestroy($original_image);             return false;     }      // free resources     imagedestroy($cropped_image);     imagedestroy($original_image);      return true; }   // using function crop image $source_image = 'image.jpg'; $target_image = 'cropped_image.jpg'; $crop_area = array('top' => 100, 'left' => 100, 'height' => 300, 'width' => 300);  cropimage($source_image, $target_image, $crop_area);

can in advance.

you can convert image jpg first resize. example code if have imagemagic installed on server:

exec("convert /path/to/file.tiff /path/to/file.jpg", $err);

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