Read the full article at: Get the First Frame of an Animated GIF with ImageMagick
ImageMagick has been the industry standard?for image manipulation for as long as I can remember. ?Hell, I remember using the ImageMagick extension when I first learned PHP over a decade ago. ?Anyways, I’ve noticed recently?that many sites which host?animated GIFs?will have a static image?initially and will swap the static image for the animated upon scroll or click/tap. ?The strategy makes sense because animated GIFs can be taxing on the CPU and costly to download?so I needed to know the?best way to do it…and ImageMagick again showed its face to me.
Creating the image is actually a simple command line execution, assuming you have ImageMagick installed:
/opt/ImageMagick/bin/convert 'monkey.gif[0]' monkey-frame.gif
That command takes the first frame of?the animated gif and generates its own image. ?At first it was weird to?see the [o] but I’m glad ImageMagick recognizes it as a frame position. ?So with that?second image you can add a click listener to swap out the src to start the gif, and you can revert to static upon another click.
I love that utilities like ImageMagick exist — they’re a pillar?of their functionality and make all of our lives easier. ?Utilizing this “double image” strategy may also speed up your sites!
Depending on your path to the install, you’ll need to adjust where you pull ImageMagick from.
在这个阳光明媚的三月，我从我单薄的青春里打马而过，
