This function with the help of pipe operator allow us to form our grid comprising 5 rows and 5 columns. The pipe works in following order: divide the hash values in threes --> produce mirrow values for each three i.e, turning 3 numbers to 5 numbers --> join each set together --> create a numbering system where first value is one, second is 2 and so on

This task helps to determine the pixel size of each grid in the entire space.

The function here transforms the input to md5 format which in turn converts the binary value to list.

Example

iex(1)> Identicon.hash_input("olatinpo")
%Identicon.Image{
colour: nil,
grid: nil,
hex: [31, 201, 231, 9, 224, 13, 55, 164, 102, 113, 188, 89, 195, 193, 18, 130],
pixel_map: nil
}

The pipe here helps to run the entire program per input by passing from hash_input down to the last one which is save_image(input) and return the input as "ok" if it is correct.

Examples

iex> Identicon.main("olatinpo")
:ok

This function helps the application to use 3 values to produce 5 values in row.

Erlang function is invoked here to convert our refined data to the image we set out to do.

In a bid to colour some portions of grid, the selection of which grid to be coloured is based on the type of number value. Only grid with non-odd numbers is coloured, hence why this function task is to remove odd grids and make them blank.

Ultimately, this function alllows each image created to be saved in a particular format.

for example Identicon.main("olatinpo") will be saved as olatinpo.png.

This function selects the first three elements in the hash list and use as RGB colour value in HTML.