Programmatisches Ändern einer BMP-Datei

Question

Ich möchte eine BMP-Datei (in Java) laden und die Bilddaten in der Syntax eines Java-Programms manipulieren. Wie kann ich das machen? Ich habe versucht, nur das Bild zu laden, wie folgt:

Aber wenn ich die Daten überprüfen, ist es nicht wirklich da. Ich bin ein Anfänger, also werden alle Punkte in die richtige Richtung geschätzt. Hier

ist die Ausgabe:

START 
IN loadBMPFile 
BM¸U 

(At this point there is a large amount of gibberish characters that won't paste into Stack Overflow) 

END 

Ich habe einen Hex-Leser (Frhed), die diese Zeichen in Hex-Format formatiert, ich hatte gehofft, dass ich sie Zeichen in eine Arraylist bringen könnte und manipulieren, um sie von dort.

Hier ist der Hex-Leser Ausgang:

BM<bh:b8>U<bh:01><bh:00><bh:00><bh:00><bh:00><bh:00>6<bh:04><bh:00><bh:00>(<bh:00><bh:00><bh:00><bh:f0><bh:00><bh:00><bh:00><bh:98><bh:fe><bh:ff><bh:ff><bh:01><bh:00><bh:08><bh:00><bh:00><bh:00><bh:00><bh:00><bh:82>Q<bh:01><bh:00><bh:12><bh:0b><bh:00><bh:00><bh:12><bh:0b><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:00><bh:01><bh:01><bh:01><bh:00><bh:02><bh:02><bh:02><bh:00><bh:03><bh:03><bh:03><bh:00><bh:04><bh:04><bh:04><bh:00><bh:05><bh:05><bh:05><bh:00><bh:06><bh:06><bh:06><bh:00><bh:07><bh:07><bh:07><bh:00><bh:08><bh:08><bh:08><bh:00><bh:09><bh:09><bh:09><bh:00> 


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

Answer 1

Verwendung javax.imageio.ImageIO.

BufferedImage img = ImageIO.read(new File("... .bmp")); 

Ein BufferedImage kann ebenfalls geändert werden, also sehr gut zum Modifizieren geeignet.