How to achieve jpeg lossless?

Question

How to achieve jpeg-lossess in Java?

ImageWriter writer = (ImageWriter) ImageIO.getImageWritersByFormatName(\"JPEG-LS\").next();
ImageWriteParam param = writ         


        

Answer 1

The first code snippet has a typo:

param.setCompressionType("JPEG-lS");

It has to be

param.setCompressionType("JPEG-LS");

(all upper case). I think it is otherwise correct and should work.

To query possible types, use param.getCompressionTypes() (as noted in a comment).