CompressionDCT2DecompressionIDCT2.

This is a student project required for the course of scientific calculation methods at the first year of the master degree in Computer Science at University of Milano-Bicocca.

Request

It was required:

• First part: comparing DCT2 implemented by the student and DCT2 implemented by a library in its fast version (FFT).
• Second part: developing a user interface that get in input a greyscale bitmap image, a number F and a number d. This software will give in output the same image but use the DCT2 and IDCT2 and cut the frequencies c(k,l) with k+l >= d.

In this project the user interface is a web app created with Shiny.

How to compile

Use RStudio open the file "ui.R" or "server.R" and in the interface of RStudio click on RunApp.

It was developed in may 2020.