PUBLIC MARKS with tags image & performance

ImageOptim optimizes images — so they take up less disk space and load faster — by finding best compression parameters and by removing unnecessary comments and color profiles. It handles PNG, JPEG and GIF animations.

"ImageOptim is a front-end (GUI) for set of tools for optimisation of PNG/JPEG images and GIF animations. Optimisation makes files smaller (in terms of disk space) by finding optimal compression parameters and by removing unneccessary information, like file comments, EXIF tags and color profiles."

ealing with browser caching is a balancing act. On one hand, you aim to minimize load times and bandwidth use by ensuring that images, scripts, and style sheets are cached by your visitors; however, you still want to ensure that they’re accessing the most recent versions of all your files. In this article, I’ll show you a few methods for controlling how your site’s files are cached by browsers so you can achieve the best of both worlds: maintaining optimal performance while ensuring that any updates are seen immediately, without a hitch by all of your users.

CSS-IG.net a pour thèmes principaux l'optimisation des images Web et le potentiel du format PNG (Portable Network Graphics), recommandé par le W3C. Il s'adresse aux techniciens d'interfaces Web soucieux de la performance de leur site.

Pngcrush

optimisation du poids des images (suppression des meta, ...)

Galleriffic was inspired by Mike Alsup's Cycle plugin, but with performance in mind for delivering a high volume of photos. This is my first experiment with jQuery, so I would love feedback on how to improve this plugin. Features * Smart Image Preloading after the page is loaded * Thumbnail Navigation (with pagination) * Bookmark-friendly URLs * Slideshow (with auto-updating url bookmarks) * Image fade transitions * Optional download link for the original image * Flexible configuration * Graceful degradation when javascript is not available * Now supports multiple galleries per page (View Multiple Gallery Demo)

Galleriffic was inspired by Mike Alsup's Cycle plugin, but with performance in mind for delivering a high volume of photos. Features * Smart Image Preloading after the page is loaded * Thumbnail Navigation (with pagination) * Bookmark-friendly URLs * Slideshow (with auto-updating url bookmarks) * Image fade transitions * Optional download link for the original image * Flexible configuration * Graceful degradation when javascript is not available * Now supports multiple galleries per page (View Multiple Gallery Demo)

Semiconductor make moving image works which reveal our physical world in flux; cities in motion, shifting landscapes and systems in chaos. Since 1999 UK artists Ruth Jarman and Joe Gerhardt have worked with digital animation to transcend the constraints of time, scale and natural forces; they explore the world beyond human experience, questioning our very existence.

Tour Dates (updated on 27 March 2008) Wed 23 April, 21h-4h // Exclusive Tour Launch Party, Le Baron // Tokyo (members guests only) Thu 24 April, 19h // Presentation at Pecha Kucha Night, SuperDeluxe // Tokyo Mon 28 April, 14.30h // Screening Talk at Image Forum Festival // Tokyo Tue 29 April to Sun 11 May // Exhibition at Film Studio 1928, Dohjidai Gallery of Art // Kyoto Wed 30 April, 17h // Screening at Image Forum Festival // Tokyo Mon 5 May, 18h // Mini-Screening AV Live Performance at Apple Store Ginza // Tokyo Wed 7 May, 19h // Screening Talk at Uplink Factory // Tokyo Thu 8 May, 19h // Screening Talk at Uplink Factory // Tokyo Sat 10 May, 23.59h-4h // AV Live Set with Salmon (JP) at Minimal Tokyo, Liquid Rooms // Tokyo

CSS Sprite is a single image file which contains several graphics. Using CSS background positions it’s possible to display any one of the graphics. By using a sprite you save on multiple http requests which helps speed up the rendering of your page.