how to compress an image using discrete cosine transformation technique with java code

Question

respected sir,

we are the students of andhra university our project is image transport protocol.only 20% of my project is completed, we implemented RSA enc and dec, text comp and decompression but we don't implement image comp and decompression and image to text conversion and text to image conversion and tommarow is last date for submission we don`t have any idea about those algorithms, so please give the java code for those algorithms. please give me the reply.

Answer 1

We don't generally do other peoples' homework, but why not google for discrete cosine transform java. It gives plenty of links to begin with.

Answer 2

Why don't you use ImageIO?

I mean, it's nice to know how DCT works and to write it yourself but programming is all about not reinventing the wheel.