JPEG and GIF — which to use, and when?

Question:
The graphics on my Web pages are all now in GIF format. Someone told me that I should convert all these GIFs over to JPEG format, because it is faster and better. Is this true?

Answer:
Not necessarily. It depends on the kind of image.

The JPEG graphics format is certainly a more “high-tech”format, in that the mathematical algorithm used for imagecompression is more complicated and harder to implement, which is why the early versions of Web browsers only supported inlineGIFs. In those early days, you could only view JPEG imagesvia an external viewer or helper app.

Now every browser supports inline JPEGs, leading some peopleto think you should convert all your graphics to this more advanced format. However, different compression algorithmsbehave differently depending on the image data. Thereare many situations in which GIF is the better format.

GIFs are good for computer-generated graphics, for examplethose generated by drawing programs like Adobe Illustratoror MacDraw. Typically, these graphics have large flat orevenly shaded areas, with not a lot of detail or surfacetexture. Because the GIF algorithm looks for repeatingsequences of pixels, it will compress these kinds ofimages very well.

JPEG on the other hand, was designed by the Joint PhotographicExperts Group, and is suited more to photographic or natural-lookingimages rather than computer illustrations. These photographicimages tend to have a lot of texture and irregular shapes.Because the compression algorithm does not depend onrepeating sequences of pixels, it works better for thesekinds of images than GIF compression.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

Top 5 B2B SaaS Marketing Agencies for 2023

In recent years, the software-as-a-service (SaaS) sector has experienced exponential growth as more and more companies choose cloud-based solutions. Any SaaS company hoping to stay ahead of the curve in this quickly changing industry needs to invest in effective marketing. So selecting the best marketing agency can mean the difference

technology leadership

Why the World Needs More Technology Leadership

As a fact, technology has touched every single aspect of our lives. And there are some technology giants in today’s world which have been frequently opined to have a strong influence on recent overall technological influence. Moreover, those tech giants have popular technology leaders leading the companies toward achieving greatness.

iOS app development

The Future of iOS App Development: Trends to Watch

When it launched in 2008, the Apple App Store only had 500 apps available. By the first quarter of 2022, the store had about 2.18 million iOS-exclusive apps. Average monthly app releases for the platform reached 34,000 in the first half of 2022, indicating rapid growth in iOS app development.