What are the best practices for optimizing images on high-dpi displays?

Depending on the needs, is it for prints or digital uses, or other purposes, we cannot use formats that are not meant to be for the required purposes, as an example using raster image for prints that requires vector images or graphics will create a guaranteed pixel explosion on the output and quality of prints will be affected. With regards to compression for file handling or working with the formats we can opt in optimizing each image files depending on the needs by using methods and various techniques of compression and optimization.

The compression of images should be optimized for file size reduction without sacrificing quality. You can find a balance between image quality and file size with the use of programs like Adobe Photoshop, ImageOptim, and online resources like TinyPNG. The stages by file can be reduced in Photoshop Cloud. file> save for web Options Most current web browsers support WebP, a new image format that offers high-quality compression. For greater compression and quality on high-DPI devices, think about using WebP pictures.

One thing I've found useful is that people nowadays can get help from differen ai websites to optimize their images with the excessive file size I always google it and find bunch of best websites to do such works. The best tool to shrink the image size I've been using is Tinypng website that offers the best shrinkage in file size without any loss of quality. Moreover if you use adobe photoshop you can save images by using export > save for web, it is the most time saving work.

Un aspect important de l'affichage des images pour les écrans est de leur assigner un profil couleur (ICC color profile) qui permettra leur affichage correct au niveau colorimétrique. La plupart des navigateurs Web prennent en compte ces profils d'images, ce qui est un plus en terme de qualité d'affichage.

Good working practice is to always keep your original, make a copy and size appropriately. When file saving, this would depend on the end use of your image. PNGs very good for colour. However, I have used gif's a lot, and learned if you have minimal colours, such as 3 colour logo, you can pick those 3 colours suitably be editing the colour in the colour table and really reduce the file size, when you compare to the general export options, with 256 colours.