Quick-n-easy image resizing, two ways

I had been meaning to cobble together a quick script to do automatic image resizing (occasionally the images that Amazon provides for album covers or book jackets are larger than the standard sizes I use on the site, and I always want to resize album covers to 65 pixels tall), but was scared off by GraphicConverter’s AppleScript dictionary, which indicated I had to specify a scaling factor rather than an absolute pixel height. Today on MacOSXHints someone saved me the trouble, providing (a) a sample script that uses the built in Image Events application to do the scaling and (b) a link to information about a command line tool called sips that accomplishes the same thing.