# Challenge: Convolution

Let's apply what we have learned about convolution using JAX in this coding exercise.

## We'll cover the following

In the challenge, we’ll continue using the notations from the previous lessons, such as $I$ for the input image and so on.

## Challenge

Let’s try to master convolution arithmetic with some practice. In this task, we have $I$ of size $1024\times1024$ and will convert it into a $256\times256$ by a series of convolutions.

Since there are a number of ways to design the above convolution network, don’t worry too much about following any specific pattern.

Below is a calculator in case you need some help in designing the filters, padding, and so on.

**Note: ** The calculator widget’s cells work just like a typical spreadsheet software, such as Microsoft Excel. For example, to calculate the answer of 75+12, type

and press “Enter”.`=75+12`

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