Count Frames in an Animated GIF
The animated GIF always makes me chuckle; on one hand they seem like a relic of the "old web", on the other hand they aren't going anywhere and their meme-like presence seem to only make them more popular. If you browse through my media blog posts archives, you'll notice that I've written a ton about animated GIFs, including how to tell if a gif is animated, how to get a screenshot of the first frame, converting GIF to WEBP, and more.
My curiosity recently brought me to asking how to detect how many frames were present in an animated GIF; as expected, ImageMagick had the answer:
identify -format "%n\n" bitcoin.gif | head -n 1
>> 101
What is this calculation useful for? I suppose if you have a media management site you could show each frame to a user so they could choose a poster when converting to video. In any event, I was curious and simply had to find out!
![Creating Scrolling Parallax Effects with CSS]()
Introduction
For quite a long time now websites with the so called "parallax" effect have been really popular.
In case you have not heard of this effect, it basically includes different layers of images that are moving in different directions or with different speed. This leads to a...
![CSS vs. JS Animation: Which is Faster?]()
How is it possible that JavaScript-based animation has secretly always been as fast — or faster — than CSS transitions? And, how is it possible that Adobe and Google consistently release media-rich mobile sites that rival the performance of native apps?
This article serves as a point-by-point...
![Build a Toggling Announcement Slider Using MooTools 1.2]()
A few of my customer have asked for me to create a subtle but dynamic (...I know...) way for them to advertise different specials on their website. Not something that would display on every page, but periodically or only the homepage. Using a trick...
![background-size Matters]()
It's something that makes all men live in fear, and are often uncertain of. It's never spoken, but the curiosity is always there. Nine out of ten women agree in the affirmative. Advertisers do their best to make us feel inadequate but...
