(Javaで)bmpファイルをロードし、Javaプログラムの構文内で画像データを操作したいと思います。これどうやってするの?次のように、画像を読み込んでみました。
public static void main(String[] args) {
System.out.println("START");
loadbitmap lbm = new loadbitmap();
lbm.loadBMPFile();
System.out.println("END");
}
private void loadBMPFile()
{
{
try{
FileInputStream fstream = new FileInputStream("sample_fingerprint_grayscale.bmp");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String inputString;
while ((inputString = br.readLine()) != null) {
readBMPFile.add(inputString);
}
in.close();
}
catch (Exception e){
System.out.println("IN ERROR");
System.err.println("Error: " + e.getMessage());
}
System.out.println("IN loadBMPFile");
System.out.println("BMP size is " + readBMPFile.size());
System.out.println(readBMPFile.get(2));
}
}
}
しかし、私がデータを調べるとき、それは実際にはありません。私はこれに慣れていないので、正しい方向のポイントはありがたいです。
出力は次のとおりです。
START
IN loadBMPFile
BM¸U
(At this point there is a large amount of gibberish characters that won't paste into Stack Overflow)
END
これらの文字を16進形式にフォーマットする16進リーダー(Frhed)があります。これらの文字を配列リストに入れて、そこから操作できることを望んでいました。
16進リーダーの出力は次のとおりです。
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