[Library] 자바(Java)에서 썸네일 이미지 만들기 [썸네일 라이브러리, Thumbnailator]

1. 썸네일 라이브러리, Thumbnailator

- 다운로드 : https://mvnrepository.com/artifact/net.coobird/thumbnailator/0.4.8

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2. Thumbnailator 사용방법

원본 이미지(origin)

- sourceRegion()

public static void main(String[] args) throws IOException {
    File file = new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg");
    Thumbnails
        .of(new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg"))
        .sourceRegion(Positions.TOP_CENTER, 200, 200)
        .size(200, 200)
        .toFile(new File("C:\\Users\\user\\Desktop\\thumb", "result.jpg"));
}

 

sourceRegion 결과

- forceSize()

public static void main(String[] args) throws IOException {
    File file = new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg");
    Thumbnails
        .of(new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg"))
        .forceSize(200, 200)
        .toFile(new File("C:\\Users\\user\\Desktop\\thumb", "result.jpg"));
}

 

forceSize 결과

- crop()

public static void main(String[] args) throws IOException {
    File file = new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg");
    Thumbnails
        .of(new File("C:\\Users\\user\\Desktop\\thumb", "origin.jpg"))
        .size(200, 200)
        .crop(Positions.CENTER)
        .toFile(new File("C:\\Users\\user\\Desktop\\thumb", "result.jpg"));
}

 

crop 결과