<?php

//create the directory if doesn't exists (should have write permissons)

if(!is_dir("./files")) mkdir("./files", 0755); 

//move the uploaded file

$now = time();



/*

$myFile = "./files/testFile.txt";

$fh = fopen($myFile, 'w') or die("can't open file");

$stringData = "HERE IS YOUR PIXEL DATA\n";

fwrite($fh, $stringData);

$stringData = "-----------------------\n";

fwrite($fh, $stringData);

*/



list($width, $height) = getimagesize($_FILES['Filedata']['tmp_name']);

$new_width = $width;

$new_height = $height;



// Resample

$image_p = imagecreatetruecolor($new_width, $new_height);

if(strpos($_FILES['Filedata']['name'], '.jpg') > 0)

	$image = imagecreatefromjpeg($_FILES['Filedata']['tmp_name']);

elseif(strpos($_FILES['Filedata']['name'], '.gif') > 0)

	$image = imagecreatefromgif($_FILES['Filedata']['tmp_name']);

elseif(strpos($_FILES['Filedata']['name'], '.png') > 0)

	$image = imagecreatefrompng($_FILES['Filedata']['tmp_name']);



$colors = array(); 





//imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);



if($image && imagefilter($image, IMG_FILTER_GRAYSCALE)) {



	//imagealphablending($image_p, true);



	$transparencyIndex = imagecolortransparent($image); 

	

	if ($transparencyIndex >= 0) { 



	} else {

		// Create an index for the color white

		$white = imagecolorallocate($image, 255, 255, 255);

		$black = imagecolorallocate($image, 0, 0, 0);

/*

		while(count($colors) <= 50) {

			

			$randColor = rand(0,255);

			 if(array_key_exists($randColor, $colors)) {

				continue;

			 } else {

				array_push($colors, $randColor);

			 }



		}*/

		//Set each pixel that is lighter than 200,200,200 to white

		for($x = 0; $x < $new_width; $x++) {



			for($y = 0; $y < $new_height; $y++) {

				

				$rgb = imagecolorat($image,$x,$y);

				$r = ($rgb >> 16) & 0xFF;

				$g = ($rgb >> 8) & 0xFF;

				$b = $rgb & 0xFF;

				



				if($r > 150 && $g > 150 && $b > 150)

					imagesetpixel($image, $x,$y, $white);

				else 

					imagesetpixel($image, $x,$y, $black);

				$stringData = 'Red: '.$r.' -- Green: '.$g.' -- Blue: '.$b.' \n';

				//fwrite($fh, $stringData);





			}





		}

		// Make the background transparent

		// TRUE COLOR

		//$white = imagecolorallocatealpha($image_p, 255, 255, 255, 0);  

		// RGB

		imagecolortransparent($image, $white);

		



	}

	//for($h = 1; $h < 55; $h++) {

	//	$greyVal = 255 - $h;

	//	$color = imagecolorallocate($image, $greyVal, $greyVal, $greyVal);

	//	imagecolortransparent($image, $color);



	//}





	if(strrpos($_FILES['Filedata']['name'], ".jpeg"))

		$_FILES['Filedata']['name'] = substr($_FILES['Filedata']['name'], 0, -5).".png";

	else

		$_FILES['Filedata']['name'] = substr($_FILES['Filedata']['name'], 0, -4).".png";



	imagepng($image, "./files/".$_FILES['Filedata']['name'], 1);



} else {



	$_FILES['Filedata']['name'] = substr($_FILES['Filedata']['name'], 0, -4).".png";

	move_uploaded_file($_FILES['Filedata']['tmp_name'], "./files/".$_FILES['Filedata']['name']);

}

//fclose($fh);



chmod("./files/".$_FILES['Filedata']['name'], 0777);

?>