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From: Andreas Leitgeb <avl@logic.at>
Newsgroups: comp.lang.tcl
Subject: is there an image package that doesn't require Tk ?
Date: Thu, 27 Jun 2024 15:47:40 -0000 (UTC)
Organization: A noiseless patient Spider
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I'd like it to open a .png file (screenshot from an android
phone) extract five rectangular regions from it, and convert
them to something similar to Tk's [$image data] - e.g. a list
of lists of colors

For now, I use "image photo" to scrape(simple ocr) some numbers
from it, but it only works with Tk.  In the end I want to do
the processing of the image in the same cron-script that gets
the screenshot from the phone.

If nothing else, I'd "convert" (from Imagemagick) the png to 
something I can easier parse in Tcl.