Advice needed XBM conversion about esp8266-projects HOT 3 OPEN

Hi Artem

I described it here:
http://blog.squix.ch/2015/05/esp8266-nodemcu-how-to-create-xbm.html

Hope that helps
Daniel

2015-12-03 11:56 GMT+01:00 Artem Pastukhov [email protected]:

Can you say how to convert images to MONO?

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#5.

from esp8266-projects.

Hi!
I have made some black magic:

#!/bin/bash

for icon in *png; do
    convert $icon -depth 1 ./out/$(basename $icon .png)_1bpp.png
    convert ./out/$(basename $icon .png)_1bpp.png -background white -alpha Background ./out/$(basename $icon .png)_1bpp.xbm
    cat ./out/$(basename $icon .png)_1bpp.xbm | xxd -r -p |dd skip=6 bs=1  > ./out/$(basename $icon .png).xbm.mono
done

rm out/*png out/*xbm

from esp8266-projects.

Black magic v2.0

#!/bin/bash

for icon in *png; do
    convert $icon -depth 1 ./out/$(basename $icon .png)_1bpp.png
    convert ./out/$(basename $icon .png)_1bpp.png -background white -alpha Background ./out/$(basename $icon .png)_1bpp.xbm
    cat ./out/$(basename $icon .png)_1bpp.xbm | tr '\n' ' '  | tr -d " " |sed  -e s'#^.*{##g'  | sed s'#,}##' |sed s'/;//' | xxd -r -p > ./out/$(basename $icon .png).xbm.mono
done

rm out/*png out/*xbm

For all the png files in current folder it convert to 1 bit per pixel first, then set background to white and save to xbm. After filter out all except hex array, convert to binary and write to resulting mono image

from esp8266-projects.