How to convert simple B/W graphic to the dot matrix for the LED display/sign
maxerickson at gmail.com
Sun Mar 4 15:09:23 CET 2012
Petr Jakes <petr.jakes.tpc at gmail.com> wrote:
>> What file format is the graphic in? How big is it?
>> What file format do you want it to be?
> Now, I am able to create the png file with the resolution 432x64
> using PIL (using draw.text method for example).
> I would like to get the 432x64 True/False (Black/White) lookup
> table from this file, so I can switch LEDs ON/OFF accordingly.
The convert and load methods are one way to do it:
>>> import Image
>>> im=Image.new('L', (100,100))
That's the numeral one in the argument to convert. The load method
returns a pixel access object.
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