Hello, I've been trying and trying ... and I cannot get the image to change form green to a greeny grey color. I've bolded the below area. The beginning image is http://forecast.mssl.ucl.ac.uk/shadow/tracker/dynamic/images/current.png and the new image should output on this page http://weatherdiscussions.com/file0.php. Can someone help, why is this not working?
<?php
// set the PNG header type for the request
header("Content-Type: image/png");// see if a width and height for the image have been provided in GET VARS
// if not, use some defaults
if ($GET["logo_width"]){
$width = $GET["logo_width"];
$height = $_GET["logo_height"];
}else{
$width = 580;
$height = 270;
}// now check if an image created for of these dimensions
// is in the image cache
// if not, then we will have to make a new one$image_path = "../image-cache/logo_".$width."x".$height.".png";
if (file_exists($image_path)) {
// send the cached image to the output buffer (browser)
readfile($image_path);
}else{
// create a new image using GD functions// the original PNG logo image $image = ImageCreateFromPNG('http://forecast.mssl.ucl.ac.uk/shadow/tracker/dynamic/images/current.png'); // the new image we will create with GD to the new dimensions $new_image = ImageCreateTrueColor($width,$height);// above could come from an uploaded image
// find a green in the image
$newblue = imagecolorclosest($image, 0, 102, 0);
// change it to grey/green
imagecolorset($image, $newblue, 153, 153, 102);$textcolor = imagecolorallocate($image, 0, 0, 310); // write the string at the top left imagestring($image, 25, 10, 205, "CWMRO Weather Maps", $textcolor); // copy and re-sample the original image to make the new one ImageCopyResampled($new_image, $image, 0, 0, 0, 0, $width, $height, 580, 270); // send the new image to the browser ImagePNG($new_image); // now save a copy of the new image to the cache directory ImagePNG($new_image, $image_path); // destroy the image in memory to free up server resources ImageDestroy($new_image);}
?>
