Extract image url from canvas column

yes, you can.

one way is to use the _merge().toText().parseJson(‘url’) trick.
but the _merge() function is a hidden unsupported (but oft-used) function.

see Post by Paul_Danyliuk

the other way that only works inside a button or automation is the toHtml() function (also hidden and unsupported) that lets you scan through the HTML of a page and find the urls of any images.

both have worked reliably for me, but they are unsupported, so may change without notice.

for a more supported solution, its best to save the URLs for your images in a table as text and then refer to them with the image() function when you want to show the image.

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