Articles Under Category ‘Photos’

Photo Slideshow – Part One – Batch Resize

Friday, September 14th, 2007

The idea is simple, I want to be able to upload a directory full of pictures and have a slideshow. I have a few groups of photos to share with the world and more and more I’m keen on the idea of coding it myself rather then use a service like flickr or Picasa.

The first step was to upload my photos. I created a directory ‘images’ and inside that directory I created ‘originals’ and ‘700w’. I then uploaded all my pictures to the originals directory.

I then created a script to automatically resize all the images in my directory.

//it can take a bit to resize a bunch of images..
//php will by default only run for 30 seconds
//this removes that limitation

//open our directory
if ($handle = opendir('images/originals')) {
    //go through our directory filenames one by one
    while (false !== ($file = readdir($handle))) {
        //ignore our . and .. directories
        if ($file != "." && $file != "..") {
            //open our image
            $image = imagecreatefromjpeg('images/originals/'."$file");
            if ($image === false) { closedir($handle); die ('Unable to open image'); }

            //get our original image dimensions
            $owidth = imagesx($image);
            $oheight = imagesy($image);

            //our new dimensions, hardcoded for a 700 width
            //second line adjusts the height to keep the same aspect ratio
            $nwidth = 700;
            $nheight =  $newheight=($oheight/$owidth)*$nwidth;

            //create a new blank image the right size
            //and resize/resample our original into it

            //write to file
            $filename = "images/700w/". $file;

            //clean up

I saved this as ‘resize.php’ and ran it with ‘php resize.php’. After about a minute my 700w directory was full of resized images, and I’m all set up for the slideshow I want.

Proof Reading or GoDaddy Goes Worng

Sunday, June 24th, 2007

Godaddy ErrorI think the picture and my excellent Photoshop skills say it for me. GoDaddy’s editor apparently didn’t have their Wheaties.