jQuery Shakker is a jQuery plugin to give any image a shakky effect. It's pretty easy to use.
This script transforms any image into a HTML5 compliant figure element with a nice caption.
Choose from 7 different effects to unveil the caption in style onmouseover. Captions can be dynamically defined or literally inside the figure element. On touch devices such as the iPad, touching the image reveals the caption, and touching anywhere else dismisses it.
Kubist transforms an ordinary image into cubism-like composition
Before and After is a jQuery plugin to view an "after" version of any image as an overlay of the original one.
A draggable handle bar lets the user decide how much of each image he/she wishes to view. The "before" and "after" slides can each contain not just a main image, but other HTML as well, such as a caption.
Image jigsaw is a jQuery plugin to easy convert any image to image based jigsaw puzzle.
Rollerblade lets you easily create interactive 360º image rotators, and other cool image effects.
neatShow.js is a jQuery plugin to fade in images beautifully on your website.
When neatShow is applied to an image, it will wait until the image has finished downloading, then instantly fades it in regardless of other images or activity on the page. Works reliably with all images in any state, including downloading, download complete and cached.
Hover Captions is a jQuery plugin that enables you to display caption overlays with cool effects over images, div's, etc.
Image Color-Up is a jQuery plugin to add effects on mouse hover to your images: monochrome/greyscale, sepia, negative, darken or lighten images.
jQuery.BlackAndWhite plug-in can easily convert any colored image into a B&W greyscale image. It uses the the HTML5 canvas tag and a fallback for the old browsers.