Examples

Daft Punk album cover

The GitHub logo

Demonstration of grayscale

As Ascii art:

Original:

How it works

1. Converts the image to grayscale
2. Resizes the image to have a width of 900px
3. Takes a group of 9x20 pixels

Equal to the dimensions of a single character in my case (Using Consolas, 16pt)

4. Takes the average brightness
5. Matches the area to the letter whom's grayscale is the most similar

Test it yourself

You need Python Pillow to run this script. pip install Pillow

Convert.py -f "my/file/name.png"

Arguments

-f

File to convert

-w

Width of output image in characters

-c

Add additional/Remove contrast [Default is 1, higher = more contrast]

-ea

Include extended ASCII range

-i

Inverts the image before converting

-b

Block certain characters from appearing in image Example: python Convert.py -f "my/file.png" -b "&" "Q"

Sidenotes

May not work as well with fonts other than Consolas

Images that have extreme ratios (like 50:1) may not work