I have many webp format images in a folder but with .jpg extension like
abc-test.jpg
It's a webp format image. I want it to convert in .png format with same name for that I have used this command and it worked
find . -name "*.jpg" -exec dwebp {} -o {}.png \;
It converted all webp images to .png but the issue is it's saving images like this:
abc-test.jpg.png
But my requirement is to save it without .jpg extension like
abc-test.png
Tested on Linux Ubuntu 20.04
This question is the top hit for the Google search of "linux convert .webp image to png". Therefore, for anyone stumbling here and just wanting that simple answer, here it is:
# 1. Install the `webp` tool
sudo apt update
sudo apt install webp
# 2. Use it: convert in.webp to out.png
dwebp in.webp -o out.png
Done! You now have out.png.
dwebp from the question itself
If you have many to convert/rename, I would recommend you use GNU Parallel and not only get them converted faster by doing them I parallel, but also take advantage of the ability to modify filenames.
The command you want is:
parallel dwebp {} -o {.}.png ::: *.jpg
where the {.} means "the filename without the original extension".
If you want to recurse into subdirectories too, you can use:
find . -name "*.jpg" -print0 | parallel -0 dwebp {} -o {.}.png
If you want a progress meter, or an "estimated time of arrival", you can add --progress or --eta after the parallel command.
If you want to see what GNU Parallel would run, without actually running anything, add --dry-run.
I commend GNU Parallel to you in this age where CPUs are getting "fatter" (more cores) rather than faster.
I did it with short oneliner that does not require parallel to be installed in the system
for x in `ls -1 *.jpg`; do dwebp {} -o ${x%.*}.png ::: $x; done
And this works for current directory
I would try to amend the @mark-setchell recursive solution so it would look like this:
for x in `find . -name "*.jpg"`; do dwebp {} -o ${x%.*}.png ::: $x; done
The ${x%.*} part is the one requiring a word of explanation here - it tells bash to take . and everything after the dot from the x variable.
It is prone to misbehave for names with more dots as I did not check if regex here is lazy or greedy - the answer can be tuned further therefore.
If the problem is with linux image viewers - thats the reason of convertion - then I found that: here
"Add WebP support to GNOME Image Viewer in Ubuntu and Other Linux By default, the photo viewer does not support WebP images files. However, you can add WebP support by installing webp-pixbuf-loader library. Not only it allows you to open WebP files in GNOME Image Viewer, it also displays thumbnails for WebP files in the file explorer.
On Ubuntu-based Linux distributions, you can install this library using a PPA. Use the following commands one by one:"
sudo add-apt-repository ppa:krifa75/eog-ordissimo
sudo apt update
sudo apt install webp-pixbuf-loader
A good thing to do is to use sed along with mv. It matches the pattern and replaces with a newer one.
for file in *.jpg;
do
mv "$file" "`echo $file | sed s/.jpg/.png/`"
done
if you want to retain the old files instead of mv you can use cp
