Re: JPEG quality loss


k0m0r wrote:
<http://java.sun.com/j2se/1.5.0/docs/api/javax/imageio/ImageWriter.html#write(javax.imageio.metadata.IIOMetadata,%20javax.imageio.IIOImage,%20javax.imageio.ImageWriteParam)>
..combined with..
<http://java.sun.com/j2se/1.5.0/docs/api/javax/imageio/ImageWriteParam.html#setCompressionQuality(float)>
..should do what you want.

java.lang.UnsupportedOperationException: Compression not supported

Which brings me back to the question, "did you RTFM?".

<sscce>
import javax.imageio.ImageWriteParam;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import java.util.Locale;

public class WriteImage {
public static void main(String[] args) {
Locale locale = new Locale("en");
ImageWriteParam iwp1 = new ImageWriteParam(locale);
System.out.println(iwp1.canWriteCompressed());
JPEGImageWriteParam iwp2 = new JPEGImageWriteParam(locale);
System.out.println(iwp2.canWriteCompressed());
}
}
</sscce>

Andrew T.

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