How to convert an Image into ASCII using Python

**The image of the lady in this video is the prime minister of Finland**

We are performing below actions to generate the ascii art from image.

Get an image path as a command line argument.
Open the image from the provided path.
Calculate the aspect ratio.
Resize the image. Here we are taking new width as 120 pixels. Adjusting the new height as per aspect ratio.
Convert the image into greyscale format.
Get all the pixels of image. Replace pixles with intentsity in a defined range with a character from list.
Print image and save to text file.

If you are getting an elongated image in terminal, you can adjust the height accordingly. I am generating new_height using formula new_height = aspect_ratio * new_width * 0.55.

Statement list(img.getdata()) returns the list intensity of all pixels. Value of intensity will be between 0 to 255. Lower the value, darker the color. That is why we have characters in char list arranged from higher intensity to lower intensity.

Value of pixel//25, where 25 is the intensity range for one character, can be between 0 to 11 i.e why there are 11 characters in charslist. You may keep more characters in the list, let's say 16 characters and then keep the range size as 17.

Line new_pixels = [chars[pixel//25] for pixel in pixels] replaces the pixels with intensity from 0 to 25 with first character from chars list and 26 to 50 with seconds character from chars list and so on.

These are not my own codes.
Reference: dev.to/anuragrana/generating-ascii-art-from-col…

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