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How to convert color dump to image?
Posted: 2019-02-11T07:52:30-07:00
by coloring
Given:
Code: Select all
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.
Re: How to convert color dump to image?
Posted: 2019-02-11T08:34:53-07:00
by snibgo
The text file is an image file, readable by IM. Writing it directly is probably faster than using the ">" redirection.
Code: Select all
convert rose: r.txt
convert r.txt r.png
Re: How to convert color dump to image?
Posted: 2019-02-11T09:40:56-07:00
by coloring
Thanks. Can IM accept other text input formats such as csv, or must the text file's formatting match the dump format exactly?
Re: How to convert color dump to image?
Posted: 2019-02-11T09:58:55-07:00
by 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
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.