While web designers do not have any control over the visitor’s speed on the internet (or the possibility of slow speeds at the peak hours) optimizing images for web use is a crucial measure to ensure that the web pages load at a decent speed for the majority of their users. It’s always an issue of balancing quality and the size of the file.
While there are many images formats available, just a handful of them are suitable in a safe manner (compatibility or performance) to be used on the internet. The three formats most commonly used for saving photos for website use, and which we will compare these three formats are “JPEG”, “GIF” and “PNG”.
What exactly does “lossy” and “lossless” compression of images refer to?
Images can be classified into two categories: lossy and lossless.
In lossy compression images are compressed. This means that your image won’t be as good as the original image’s quality. But, if you use the right compression settings, images can appear decent on a monitor even with a tiny quantity of memory.
On the other hand lossless is the term used to describe when the image is compressed, you will get exactly the same image as the original image, with no loss in quality. However, the drawback is that the image file will typically be larger than when lossy compression is used, so it might delay loading on your page.
What is the most effective way to make images more efficient for web use?
The primary factors that decide the best way to optimize your images for web are:
The dimensions that the image will be whatever format employed the bigger an image , the larger the file size it will be and that means a higher loading times.
The amount of information needed. This is mostly based on the goals of your website and the type of technology utilized by your customers. If, for instance, the majority of your visitors are tech-savvy or live in an location where the internet infrastructure is strong, you might choose to take a more prudent approach, compared to if some of your customers have slow internet connections or are still using outdated technology. Tools like Google Analytics can give you an insight into these factors and more.
You should also consider the performance of your host If your hosting provider isn’t performing well (in this case it could be good to reach them and ask why this is happening and, if all else fails then, change your hosting company) You will have to ensure the images you upload are optimized to are loading at a reasonable speed.
The web hosting cost bandwidth for web hosting. This costs money, therefore should your site be large and is a major source of traffic you could actually cost you less money to optimize your images as best you can.
The placement of images is important. Images near on the upper part of the website are more noticeable than images in the lower areas, and you could decide to compress the less noticeable images more, as whether they are viewed or not they will all need to load on your website!
JPEG (pronounced”jay-peg”) is the largest and most popular image format on the internet. It was developed through the Joint Photographic Experts Group and its extension is.jpg.
JPEG utilizes lossy compression, but its level of compression is adjustable. It is typically best suited for complicated and “realistic” pictures, such photos that have a lot of tones that are continuous (where adjacent pixels usually are very similar in colour such …