How to convert color dump to image?

[coloring]

Given:

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convert rose: txt: > color_dump.txt

How can I convert color_dump.txt or any other text-editable list of colors and coordinates back to an image file?

The goal is to be able to manually correct a few pixels from images with millions of colors, in vim without opening an image editor, so XBM, XPM, and PBM will probably not cut it.

[snibgo]

The text file is an image file, readable by IM. Writing it directly is probably faster than using the ">" redirection.

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convert rose: r.txt

convert r.txt r.png

[coloring]

Thanks. Can IM accept other text input formats such as csv, or must the text file's formatting match the dump format exactly?

[snibgo]

When reading "txt:" format, the hash # character starts a comment to the end of the line. Except for that, the format isn't flexible.

Other text formats are available, eg

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magick rose: -compress None x.pnm

IM has no facility to read generic CSV files. It doesn't know what columns have what meanings. But if you create a CSV file, a script to convert that to a format IM can read should be easy.