<?php
$img = imagecreatefromjpeg("./tile.jpg");
if ($img)
{
$width = imagesx($img);
$height = imagesy($img);
$size = $width*$height*4;
$data = array_fill(0, $size, 0);
for ($i=0,$x=0,$y=0; $i<$size; $i+=4,++$x)
{
if ($x >= $width)
{
$x = 0;
++$y;
}
$c = imagecolorat($img, $x, $y);
$rgba = imagecolorsforindex($img, $c);
$data[$i + 0] = $rgba['red'];
$data[$i + 1] = $rgba['green'];
$data[$i + 2] = $rgba['blue'];
$data[$i + 3] = $rgba['alpha'];
}
echo json_encode(array('image'=>$data,'width'=>$width,'height'=>$height));
}
|
Download
