Image Magick

http://www.imagemagick.org/Usage/thumbnails/#polaroid

convert Thumbs\2008-04-25\th_DSC_0004.jpg -bordercolor white ^

-border 6 ^

-bordercolor grey60 ^

-border 1 ^

-bordercolor none ^

-background none ^

( Thumbs\2008-04-25\th_DSC_0005.jpg -bordercolor white ^

-border 6 ^

-bordercolor grey60 ^

-border 1 ^

-bordercolor none ^

-background none ^

-affine 1.5,1.5,-1.5,1.5,100,100 -transform ) ^

( -clone 0 -rotate 3 ) ^

( -clone 0 -rotate -5 ) ^

( -clone 0 -rotate 0 ) ^

-delete 0 ^

-border 100x80 ^

-gravity center ^

-crop 1000x1000+0+0 ^

+repage ^

-flatten ^

-trim ^

+repage ^

-background black ( +clone -shadow 60x4+4+4 ) ^

+swap ^

-background none ^

-flatten poloroid_stack.png

function createPile($thumbnails_full_paths, $save_file_location, $max_images)

{

ini_set("max_execution_time", "3000");

$image_magick_path="C:\\Program Files\\ImageMagick";

//$image_magick_path="D:\\Program Files\\ImageMagick-6.5.4-Q16";

//$thumbnails_full_paths should be a list of the thumbnails properly escaped strings

//$save_file_location should be something like $thumbs_path\\{$folder}_{$rand_num}.png

$folder_thumb_command_start="\"$image_magick_path\\convert.exe\" ";

$folder_thumb_command_images_first="";

$folder_thumb_command_middle=" -bordercolor white -border 6 -bordercolor grey60 -border 1 -bordercolor none -border 1 -background none ";

$folder_thumb_command_images_second="";

$folder_thumb_command_end=" -border 2000x1000 -gravity center +repage -flatten -trim +repage -background black ( +clone -shadow 60x4+4+4 ) +swap -background none -flatten \"$save_file_location\"";

//-crop 2000x1000+0+0 broke it for win7 64bit system

$i=count($thumbnails_full_paths);//shuffle($files);

if($i<$max_images)

$stop=$i;

else

$stop=$max_images;

for($j=0; $j<$stop; $j++)

{

$angle=(3.14159*rand(-100,100))/800;

$cos_ang=cos($angle);

$sin_ang=sin($angle);

$min_sin_ang =-$sin_ang;

$pos_x = rand(20,500);

$pos_y = rand(20,200);

$folder_thumb_command_images_first=$folder_thumb_command_images_first."\"$thumbnails_full_paths[$j]\" ";

$folder_thumb_command_images_second=$folder_thumb_command_images_second."( -clone 0 -affine $cos_ang,$sin_ang,$min_sin_ang,$cos_ang,$pos_x,$pos_y -transform ) -delete 0 ";

}

$folder_thumb_command=$folder_thumb_command_start.$folder_thumb_command_images_first.$folder_thumb_command_middle.$folder_thumb_command_images_second.$folder_thumb_command_end;

//echo("\"$folder_thumb_command\"");

exec("\"$folder_thumb_command\"");

}