Well I guess 100% is the picture as I import it.
I used qrcode = Import["folder"], so we can say it has "100%" brightness. And I'm supposed to make it 140%.
The teacher wants to see, that it's really brighter by 40% in code.. But I have no idea how and I had a look on those commands, but I can't write the code correctly probably.. I'm missing something big while programming in Mathematica.
Oh, and thank you for welcoming.
e: is it possible that i use ImageAdjust[qrcode, {0, 1.4}] = the brightness should be now 140%?
