Created an image to ascii Converter

Tools/Image-to-ASCII-Art/Image-to-ASCII-Art.py

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+#!/usr/bin/python
+# -*- coding: utf-8 -*-
+import sys, random, argparse
+import numpy as np
+import math
+
+from PIL import Image, ImageChops
+
+
+gscale1 = "$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:,\"^`'. "
+
+gscale2 = '@%#*+=-:. '
+
+def getAvarageL(image):
+    im = np.array(image)
+
+    w,h = im.shape
+
+    return np.average(im.reshape(w*h))
+
+
+def covertImageToAscii(fileName, cols, scale, moreLevels, invert):
+    global gscale1, gscale2
+
+    image = Image.open(fileName).convert('L')
+
+    if invert:
+        print("Inverting image")
+        image = ImageChops.invert(image)
+    
+    W, H = image.size[0], image.size[1]
+    print("Input image dimensions: %d x %d" % (W, H))
+
+    w = W/cols
+
+    h = w/scale
+
+    rows = int(H/h)
+
+    print("Cols: %d, Rows: %d" % (cols, rows))
+    print("Tile dimensions: %d x %d" % (w, h))
+
+    if cols > W or rows > H:
+        print("Image too small for specified cols!")
+        exit(0)
+
+    aimg = []
+
+    for j in range(rows):
+        y1 = int(j*h)
+        y2 = int((j+1)*h)
+
+        if j == rows-1:
+            y2 = H
+
+        aimg.append("")
+
+        for i in range(cols):
+
+            x1 = int(i*w)
+            x2 = int((i+1)*w)
+
+            if i == cols-1:
+                x2 = W
+            
+            img = image.crop((x1, y1, x2, y2))
+
+            avg = int(getAvarageL(img))
+
+            if moreLevels:
+                gsval = gscale1[int((avg*69)/255)]
+            else:
+                gsval = gscale2[int((avg*9)/255)]
+
+            aimg[j] += gsval
+
+    return aimg
+
+
+def main():
+
+    descStr = "This sript converts an image into ASCII art."
+    parser = argparse.ArgumentParser(description=descStr)
+
+    parser.add_argument('--file', dest='imgFile', required=True)
+    parser.add_argument('--scale', dest='scale', required=False)
+    parser.add_argument('--out', dest='outFile', required=False)      
+    parser.add_argument('--cols', dest='cols', required=False)
+    parser.add_argument('--invert', dest='invert', required=False)
+    parser.add_argument('--moreLevels', dest='moreLevels', action='store_true')
+
+    args = parser.parse_args()
+
+    imgFile = args.imgFile
+
+    outFile = 'out.txt'
+    if args.outFile:
+        outFile = args.outFile
+    
+    scale = 0.43
+    if args.scale:
+        scale = float(args.scale)
+    
+    cols = 80
+    if args.cols:
+        cols = int(args.cols)
+
+    print('Generating ASCII art...')
+
+    aimg = covertImageToAscii(imgFile, cols, scale, args.moreLevels, args.invert)
+
+    f = open(outFile, 'w')
+
+    for row in aimg:
+        f.write(row + '\n')
+        print(row)
+
+    f.close()
+    print("ASCII art written to %s" % outFile)
+
+
+if __name__ == "__main__":
+    main()