Legacy ImageMagick Discussions Archive

I do not think it is an IM bug, but a bug in your installs.

I strongly disagree with this. In what way did I make a mistake in my installation of ImageMagick on Ubuntu through the official repositories? In what way did I make a mistake when I installed ImageMacik on macOS through Homebrew, on two ...

I agree with fmw42, something is wrong with my install of ImageMagick on macOS, and with my install of ImageMagick on Ubuntu, and therefore there is a bug with ImageMagick not correctly interpreting the `-set filename:f %t` options even though it does correctly convert image files to WebP.

On macOS ...

I've double-checked, but I'll check again that it is indeed converting to WebP. Even if it isn't converting to WebP, this is still a bug because ImageMagick should understand the `-set filename:f %t` options.

On Ubuntu, here is the result of this command that examines the first few bytes of the ...

I disagree that imagemagick is failing to convert the image to WebP in my case, @fmw42. It clearly is working, the file generated is a WebP image that works everywhere that I expect WebP images to work, and the `file` command on Ubuntu clearly identifies it as WebP:

$ file example.webp
example ...

THanks for your suggestion snibgo. This is the output on my macOS machine as well as on my Ubuntu machine:

$ convert -list format 2>&1 | grep -i webp
$
It doesn't list WebP for some reason.

However, conversion to WebP does work!

$ convert example.png example.webp
$ ls *.webp
example.webp ...

Putting double-quotes around "%t" makes no difference, I tried. It doesn't surprise me that it makes no difference, as the percent character is not interpreted by the bash shell, and therefore doing %t or "%t" is identical and the process being run cannot distinguish between the two cases.

To convert an image from one format to another, changing the extension, you can do this:

$ convert example.png -set filename:f %t '%[filename:f].jpg'
$ ls
example.jpg example.png
However, if I try the same technique when converting into a webp image, this is the result:

$ convert example.png ...