PHP GD image to text
This example shows how to change image to text in php gd.
This example shows how to change image to text in php gd.<?php
$file = imagecreatefromjpeg("image1.jpg");
$bw = 0;
$s = "index";
$dest_x = 40;
$dest_y = 30;
if (imagesx($file) > $dest_x or imagesy($file) > $dest_y) {
if (imagesx($file) >= imagesy($file)) {
$full_y = imagesy($file)*($dest_x/imagesx($file));
$full_x = $dest_x;
} else {
$full_x = imagesx($file)*($dest_y/imagesy($file));
$full_y = $dest_y;
}
} else {
$full_x = imagesx($file);
$full_y = imagesy($file);
}
$image = imagecreatetruecolor($full_x, $full_y);
imagecopyresized($image, $file, 0, 0, 0, 0, imagesx($image), imagesy($image), imagesx($file), imagesy($file));
for ($y=0;$y<imagesy($image);$y++) {
for ($x=0;$x<imagesx($image);$x++) {
$rgb = imagecolorat($image,$x,$y);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
if ($bw == 1) {
$max = max($r,$g,$b);
$grid[$x][$y] = str_repeat(str_pad(dechex($max),2,"0",STR_PAD_LEFT),3);
} else {
$grid[$x][$y] = sprintf("%02X%02X%02X",$r,$g,$b);
}
}
}
$pHex = "";
echo "<div style=\"line-height:0.8em; font-size:8pt; font-family:monospace; background-color: #000000;\">";
for ($y=0;$y<imagesy($image);$y++) {
for ($x=0;$x<imagesx($image);$x++) {
if ($grid[$x][$y] != $pHex) {
if ($pHex != "") { echo "</span>"; }
echo "<span style=\"color:#".$grid[$x][$y]."\">";
$pHex = $grid[$x][$y];
}
echo $s[($counter++%strlen($s))];
}
echo "<br>\n";
}
echo "</div>";
?>
After running the program you will get the following output
