troubleshooting Question

Adjust scale/proportion of watermark on image

Avatar of hrolsons
hrolsonsFlag for United States of America asked on
PHP
12 Comments1 Solution33 ViewsLast Modified:

I'm having trouble adjusting the scale of the watermark in the following code(it's zoomed in too much):


<?php
// Load the stamp and the photo to apply the watermark to
$stamp = imagecreatefrompng('https://www.photographresearch.com/simple-shop/watermark.png'); $im = imagecreatefromjpeg('https://www.photographresearch.com/simple-shop/photo.jpg'); // Set the margins for the stamp and get the height/width of the stamp image $marge_right = -100; $marge_bottom = -100; $sx = imagesx($stamp); $sy = imagesy($stamp); // Copy the stamp image onto our photo using the margin offsets and the photo // width to calculate positioning of the stamp. imagecopymerge($im, $stamp, imagesx($im) - $sx - $marge_right, imagesy($im) - $sy - $marge_bottom, 0, 0, imagesx($stamp), imagesy($stamp), 20); // Output and free memory header('Content-type: image/png'); imagepng($im); imagedestroy($im); ?>

Open in new window

Can someone help me with the math so that the watermark and photo are the same proportions?

ASKER CERTIFIED SOLUTION
David Favor
Fractional CTO
Log in to continue reading
Become an EE member today7-DAY FREE TRIAL
Members can start a 7-Day Free trial then enjoy unlimited access to the platform for $9.99/mo
View membership options
Unlock 1 Answer and 12 Comments.
or
Learn why we charge membership fees
We get it - no one likes a content blocker. Take one extra minute and find out why we block content.
See how we're fighting big data
The Value of Experts Exchange in My Daily IT Life

Experts Exchange (EE) has become my company's go-to resource to get answers. I've used EE to make decisions, solve problems and even save customers. OutagesIO has been a challenging project and... Keep reading >>

Mike

Owner of Outages.IO
Phoenix, Arizona, United States
Member Since 2016
Join a full scale community that combines the best parts of other tools into one platform.
Unlock 1 Answer and 12 Comments.
View membership options
“All of life is about relationships, and EE has made a virtual community a real community. It lifts everyone's boat.”
William Peck

Member since 2004