I was just trying out to create a GIF image from a group of images. Then I end up with ImageMagick. I have posted the code as answer below.
If you want to create a GIF image from a group of images through command prompt, you can do it with ImageMagick in a single step.
"convert -delay 20 -loop 0 image_to_convert*.jpg new_animated.gif"
For example,
If names of the images starts with 'sphere' and ends with '.jpg'. Executing the following command we can generate GIF image.
"convert -delay 20 -loop 0 sphere*.jpg new_animated.gif"
Related
This seems like a question people may have asked indirectly before, but my question is more straightforward.
I have a folder of images sized 559x464 px.
[cbloecke#mac:cropped]% file file1_95w65w20n50n.png
file1_95w65w20n50n.png: PNG image data, 559 x 464, 8-bit/color RGBA, non-interlaced
All the png images have the same "95w" text in the filename. I use the imagemagick -loop and -delay commands to make them into an animated gif.
convert *95w*.png -delay 30 -loop 0 animated_95w65w20n50n_t.gif
But every time I do this, the resulting gif is resized larger with lots of empty space around it.
[cbloecke#mac:cropped]% file animated_95w65w20n50n_t.gif
animated_95w65w20n50n_t.gif: GIF image data, version 89a, 720 x 1080
I've tried using -trim and -resize 559x464 to reduce the size of the image, but they aren't doing anything. Why does imagemagick keep adding all this extra space? How do I trim it back down to the original 559x464?
Note: I'm working on a network where I have no control over the modules installed, so I'd prefer a solution in imagemagick, or potentially another default linux module.
Try repaging your images after you open them so they forget any previous virtual canvas sizes:
convert *95w*.png +repage -delay 30 -loop 0 anim.gif
I have a workflow where I take gifs from a client, convert them from gif to sprite sheets (png) I can work on, then convert them back to gifs to send back. The Client's frame delays in their gifs are important though, so I need to preserve them.
Is there a way I can grab the frame delays in one gif, and apply them to another gif, using ImageMagick commandline utilities? I'm doing these through a .bat batch file on windows. The gifs have the same dimensions and frame counts.
In Imagemagick 6, you can use the string format %T to get the animation delay. Put it into a variable and then use the variable for the delay of the next animation. See https://imagemagick.org/script/escape.php
convert -delay 100 rose: rose: rose: -loop 0 anim.gif
convert anim.gif -format "%T\n" info: | head -n 1
100
Note that without piping to head -n 1, Imagemagick will repeat the delay once for each frame.
For Imagemagick 7, use magick rather than convert. In Windows .bat, double the % to %%.
For Windows you may need to find an equivalent tool to head -n 1 or just parse the text output from %T to extract only one value from all the repeats for each frame.
I am trying to make a gif with images using convert. But in the resulting gif, the images are just stacking one over the other.
Here is the created gif : https://i.imgur.com/EgISW2y.gif
I tried creating it with simple command :
$ convert -delay 8 -loop 0 plot_* result.gif
Try using the -dispose setting with previous option, which disposes the previous frames after they are displayed:
convert -dispose previous -delay 8 plot_* -loop 0 result.gif
Further reading here.
I have a bunch of files labelled 1.png and so on. I'm using the following command line to produce a gif animation:
convert -delay 20 *.png animation.gif
But the frames get superposed sequentially. I did not expect this behavior, what might be wrong?
Thanks
Option -dispose previous:
convert -dispose previous -delay 20 *.png animation.gif
I have an animation as a batch of .png files (100 files). The background is transparent in the source .png files. I want to convert them into a single animated gif. I have tried this command:
convert -delay 0 -loop 0 -alpha set *.png ani.gif
But the result is the following (green is the HTML page background):
How should I remove the previous frames from an every following one?
I've found -dispose previous.
UPDATE
OK, convert -delay 0 -loop 0 -alpha set -dispose previous *.png ani.gif
The solution is here:
http://www.alecjacobson.com/weblog/?p=2601
The magic keyword seems to be “dispose” and calling the following fixed the problem:
convert -dispose 2 screencapture-*.tga screencapture.gif