June 2015
Intermediate to advanced
464 pages
12h 3m
German
Content preview from Raspberry Pi programmieren mit Python
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Anhang D: So entstand das Titelbild
Eine Besonderheit dieses Buches ist, dass das Titelbild mit einem Python-Programm erstellt wurde. Mit diesem Programm wurde ein Foto des Raspberry-Pi im PPM-Format geladen und dann bearbeitet. In den Feldern am oberen Rand der Benutzungsoberfläche kann man die Farben durch Anklicken ändern. Es wird dann eine neue Zufallsfarbe ausgewählt. Man klickt so lange, bis man mit den Farben zufrieden ist. Wenn die Schaltfläche Bild bearbeiten angeklickt wird, passiert Folgendes: Alle Pixel werden einer von vier Helligkeitsstufen zugeordnet und dann mit einer der vier Farben eingefärbt.
Abb. D.1: Programm zur Bildbearbeitung, ...
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