Had gone through some study and testing, found a method to convert TIFF to JPEG and sorry for pending so long only uploaded this answer.
SeekableStream s = new FileSeekableStream(inFile);
TIFFDecodeParam param = null;
ImageDecoder dec = ImageCodec.createImageDecoder("tiff", s, param);
RenderedImage op = dec.decodeAsRenderedImage(0);
FileOutputStream fos = new FileOutputStream(otPath);
JPEGEncodeParam jpgparam = new JPEGEncodeParam();
jpgparam.setQuality(67);
ImageEncoder en = ImageCodec.createImageEncoder("jpeg", fos, jpgparam);
en.encode(op);
fos.flush();
fos.close();
otPath
is the path that you would like to store your JPEG image.
For example: "C:/image/abc.JPG";
inFile
is the input file which is the TIFF file
At least this method is workable to me. If there is any other better method, kindly share along with us.