How to implement lossless JPEG 2000 compression??

I need help please, I want to implement lossless JPEG2000 compression. anyone of you has an idea??

[Guillaume]

jpeg2000 is already implemented in imwrite.

If you are asking about implementing your own algorithm (dct, etc.) then "anyone has any idea" is much too vague for us to answer. Have you looked at the standard that tells you exactly what needs to be done?

Answer 1

[jihen saoud]

so, I'm using the Gonzalez implementation that uses the 9/7 filter, and I want to change the code to test lossless jpeg2000.