# Now map the pixel brightness to the ASCII density glyphs. It stemmed from the inability of graphical presentation on early computers. Img = img.resize((width, height), Image.ANTIALIAS) ASCII art is a technique of composing pictures with printable text characters Wikipedia 2009. # The ASCII character glyphs are taller than they are wide. # Read in the image, convert to greyscale. A default width of 100 characters is used can be passed as an optional command line argument after the original image filename.
The character chosen depends on the brightness of each pixel in the image: the following sequence (from densest (brightest) to least dense) is used : rendered image contrast can be controlled (to some extent) by setting the value of the contrast variable in the range -10 to +10. 8 Answers Sorted by: 126 The definitive list can be found at Unicode Character Code Charts search the page for 'CJK'. This is just a simple script that takes an image and renders it as a grid of ASCII characters in the console.
The limitations of computers of that time period necessitated the use of text characters to represent images.ĪSCII art is a graphic design technique that uses computers for presentation and consists of pictures pieced together from the 95 printable (from a total of 128) characters defined by the 1963 ASCII Standard. The widespread usage of ASCII art can be traced to the computer bulletin board systems of the late 1970s and early 1980s.
