Does anyone have a CLI image converter script?

[espruino-discuss2]

Posted at 2022-10-26 by tipishev

Hi! I need to convert multiple PNG files to compressed image strings and doing so via online image converter (which is awesome for small tasks by the way!) can get a bit tedious. Does anyone have a command line tool for that?

Thank you!

[espruino-discuss2]

Posted at 2022-10-27 by @gfwilliams

There isn't anything, but you could add one. The tools are at https://github.com/espruino/EspruinoWebTools

So all you have to do is copy imageconverter.js and use require("imageconverter.js") to use the tools in Node.js.

Since Canvas/etc isn't really provided in Node.js you'd have to use some other image loader and then just pass the RGBA data into imageconverter's RGBAtoString function though.

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Posted at 2022-10-27 by @gfwilliams

... also down the bottom of http://www.espruino.com/Graphics#rendering there are instructions on using ImageMagick to create an image on the command-line, but they are quite basic and deal only with creating the buffer part of the image - not width/height/etc

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Posted at 2022-10-27 by tipishev

Thanks Gordon! I found an alternative approach: hacking around the Webtool's

  function handleFileSelect(event) {
      if (event.target.files.length != 1) return;

:)

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Posted at 2022-10-28 by @gfwilliams

That's a neat idea! If you've got something that works nicely it'd be great if you could contribute that back - it could be really handy if https://www.espruino.com/Image+Converter accepted multiple files

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Posted at 2022-10-28 by tipishev

Of course! If I have success in that direction I will send a PR.