Java 将 tif/tiff 格式图片转换成png格式

依赖

<dependency>
    <groupId>com.github.jai-imageio</groupId>
    <artifactId>jai-imageio-core</artifactId>
    <version>1.4.0</version>
</dependency>

代码实现

import org.junit.Test;

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.UUID;

import javax.imageio.ImageIO;
import javax.imageio.ImageReader;
import javax.imageio.stream.ImageInputStream;

public class TifDemo {

    public static File tif2Png(File tifFile) {
        File outFiles = new File("test-file/" + UUID.randomUUID().toString());
        boolean mkdirs = outFiles.mkdirs();
        try (ImageInputStream input = ImageIO.createImageInputStream(tifFile)) {
            ImageReader reader = ImageIO.getImageReaders(input).next();
            reader.setInput(input);
            int frameCount = reader.getNumImages(true);
            for (int i = 0; i < frameCount; i++) {
                BufferedImage image = reader.read(i, null);
                File tempPng = new File(outFiles, i + ".png");
                ImageIO.write(image, "PNG", tempPng);
            }
            reader.dispose();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return outFiles;
    }

}