|
| 1 | +from PIL import Image |
| 2 | + |
| 3 | +# ascii characters used to build the output text |
| 4 | +CHARS = [".",".",".","1","1","1","1","1","0","0","0"] |
| 5 | +# convert each pixel to grayscale |
| 6 | +def grayify(image): |
| 7 | + grayscale_image = image.convert("L") |
| 8 | + return(grayscale_image) |
| 9 | + |
| 10 | +# convert pixels to a string of ascii characters |
| 11 | +def pixels_to_ascii(image): |
| 12 | + pixels = image.getdata() |
| 13 | + characters = "".join([CHARS[pixel//23] for pixel in pixels]) |
| 14 | + return(characters) |
| 15 | + |
| 16 | +def photoascii(): |
| 17 | + |
| 18 | + # attempt to open image from user-input |
| 19 | + path = input("Enter a valid pathname to an image:\n") |
| 20 | + try: |
| 21 | + image = Image.open(path) |
| 22 | + except Exception: |
| 23 | + print("Invalid path") |
| 24 | + return |
| 25 | + |
| 26 | + #Resizing of image |
| 27 | + new_width=100 |
| 28 | + width, height = image.size |
| 29 | + ratio = height/width |
| 30 | + new_height = int(new_width * ratio) |
| 31 | + resized_image = image.resize((new_width, new_height)) |
| 32 | + |
| 33 | + # convert image to ascii |
| 34 | + new_image_data = pixels_to_ascii(grayify(resized_image)) |
| 35 | + |
| 36 | + pixel_count = len(new_image_data) |
| 37 | + ascii_image = "\n".join([new_image_data[index:(index+new_width)] for index in range(0, pixel_count, new_width)]) |
| 38 | + |
| 39 | + |
| 40 | + # save result to "ascii_image.txt" |
| 41 | + with open("ascii_image.txt", "w") as f: |
| 42 | + f.write(ascii_image) |
| 43 | +# run program |
| 44 | +if __name__=='__main__': |
| 45 | + photoascii() |
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