Image layout as a number

Question

I have a folder with small images (photos on my Facebook profile). I want to make a new mosaic picture, where all the small images are laid out as a number, as in this example ( source ).

Is there a program that can do this (and works on Windows 7)? Otherwise, I can also write a small script to do the same. I know how I can add a white border to PIL / Pillow images, but my search for how image composition turned out to be fruitless.

Can someone point me in the right direction?

Answer 1

jsheperd , ASCII. , - - 1, , 0, . PIL , 1.

matplotlib ( Ada Lovelace), , matplotlib. matplotlib faces PIL.

from PIL import Image
from PIL import ImageDraw
from PIL import ImageFont
import itertools as IT
import numpy as np
import matplotlib.cbook as cbook

def text_to_pixels(text, path='arialbd.ttf', fontsize=14):
    """
    /questions/155092/how-to-easily-print-ascii-art-text/898458#898458 (jsheperd)
    https://stackoverflow.com/a/36386628/190597 (unutbu)
    """
    font = ImageFont.truetype(path, fontsize) 
    w, h = font.getsize(text)  
    h *= 2
    image = Image.new('L', (w, h), 1)  
    draw = ImageDraw.Draw(image)
    draw.text((0, 0), text, font=font) 
    arr = np.asarray(image)
    arr = np.where(arr, 0, 1)
    arr = arr[(arr != 0).any(axis=1)]
    return arr

def get_image():
    fn = cbook.get_sample_data("ada.png")
    face_img = Image.open(fn).convert('RGBA')
    face_img = face_img.resize((30, 40), Image.ANTIALIAS)
    # give image a white background
    img = Image.new('RGBA', size=(36, 46), color=(255, 255, 255))
    img.paste(face_img, (3, 3))
    return img

def sqdist(a, b):
    return ((a -b)**2).sum()

def pics_in_text(text, faces, img_width=600, img_height=250, path='arialbd.ttf', 
                 fontsize=20, minsep=1000):
    arr = text_to_pixels(text, path=path, fontsize=fontsize)
    yx = np.column_stack(np.where(arr)).astype(float) 
    yx /= arr.shape
    yx *= (0.75, 0.90)
    yx += 0.05
    yx *= (img_height, img_width)
    yx = yx.astype('int')
    np.random.shuffle(yx)
    keep = []
    for coord in yx:
        if all(sqdist(item, coord) > minsep for item in keep):
            keep.append(coord)
    yx = IT.cycle(keep)

    img = Image.new('RGBA', size=(img_width, img_height), color=(255, 255, 255, 255))
    seen = list()
    for face, coord in zip(faces, yx):
        deg = np.random.uniform(-45, 45)
        face = face.rotate(deg, resample=Image.BICUBIC, expand=False)
        img.paste(face, tuple(coord[::-1]), mask=face)
    return img

def get_image():
    import matplotlib.cbook as cbook
    fn = cbook.get_sample_data("ada.png")
    face_img = Image.open(fn).convert('RGBA')
    face_img = face_img.resize((30, 40), Image.ANTIALIAS)
    # give image a white background
    img = Image.new('RGBA', size=(36, 46), color=(255, 255, 255))
    img.paste(face_img, (3, 3))
    return img

num_faces = 650
faces = IT.islice(IT.cycle([get_image()]), num_faces)
img = pics_in_text('800', faces, img_width=1200, img_height=500, 
             path='/usr/share/fonts/truetype/msttcorefonts/Comic_Sans_MS.ttf', 
             fontsize=40, minsep=375)
img.save('/tmp/out.png', 'PNG')

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