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added rotation when generating lexicon #5

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added rotation when generating lexicon #5

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489e502
added rotation when generating lexicon
minhphd Feb 28, 2023
e366853
changed from average to max
minhphd Mar 15, 2023
dcd9d00
fix printout
minhphd Aug 22, 2023
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55 changes: 31 additions & 24 deletions font_data/letter_congruence_multiprocessing.py
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Expand Up @@ -62,33 +62,38 @@ def get_congruence(letter1, letter2):

start_time = time.time()

# processing image
img1 = Image.open(letter1)
img2 = Image.open(letter2)

img1 = ImageOps.grayscale(img1)
img2 = ImageOps.grayscale(img2)

width = img1.size[0]
height = img1.size[1]

max_overlaps = 0
# move one of the matrice up and left and vice versa.
# (equivalent to move the other matrix down and right)
for y_shift in range(-height, height):
for x_shift in range(-width, width):
# move the matrix A to the up-right and up-left directions
max_overlaps = max(max_overlaps, shift_and_count(x_shift, y_shift, img1, img2))
# move the matrix B to the up-right and up-left directions
# which is equivalent to moving A to the down-right and down-left directions
#max_overlaps = max(max_overlaps, shift_and_count(x_shift, y_shift, img2, img1))

print("max_overlap: ",max_overlaps)
print("area of: " , letter1, " is: ", get_area(img1))
print("area of: ", letter2, " is: ", get_area(img2))
#print("congruence: ", max_overlaps / (get_area(img1) + get_area(img2) - 2 * max_overlaps)/2)
print("congruence: ", math.log10(10 * max_overlaps / (get_area(img1) + get_area(img2) - 2 * max_overlaps) / 2 ))
congruences = []

# implementing rotation
for a in range(0, 360, 90):
width = img1.size[0]
height = img1.size[1]

max_overlaps = 0
# move one of the matrice up and left and vice versa.
# (equivalent to move the other matrix down and right)
for y_shift in range(-height, height):
for x_shift in range(-width, width):
# move the matrix A to the up-right and up-left directions
max_overlaps = max(max_overlaps, shift_and_count(x_shift, y_shift, img1, img2))
# move the matrix B to the up-right and up-left directions
# which is equivalent to moving A to the down-right and down-left directions
#max_overlaps = max(max_overlaps, shift_and_count(x_shift, y_shift, img2, img1))

curr_congruence = math.log10(10 * max_overlaps / (get_area(img1) + get_area(img2) - 2 * max_overlaps) / 2 )
congruences.append(curr_congruence)

# rotate img by 90 degrees
img1 = img1.rotate(90)

congruence = math.log10(10 * max_overlaps / (get_area(img1) + get_area(img2) - 2 * max_overlaps) / 2 )
final_congruence = max(congruences)

letter1_name = letter1.split("/")[-1].split(".")[0]
letter2_name = letter2.split("/")[-1].split(".")[0]
Expand All @@ -100,7 +105,9 @@ def get_congruence(letter1, letter2):
letter2_name = letter2_name.replace("1", "")

#lexicon[letter1_name+letter2_name] = congruence
return (letter1_name + letter2_name, congruence)
print(f"--> Finished procession congruence for {letter1_name} and {letter2_name} in {time.time() - start_time}")
print(f"--> MAX CONGRUENCY VALUE ACROSS ALL 4 ORIENTATIONS: {final_congruence}\n")
return (letter1_name + letter2_name, final_congruence)

end_time = time.time()
print("time: ", end_time - start_time)
Expand All @@ -112,7 +119,7 @@ def get_congruence(letter1, letter2):

def main():

path = "./Consolas_split/"
path = "./font_data/Consolas_split/"

# get all images in path
images = []
Expand Down Expand Up @@ -142,10 +149,10 @@ def main():
lexicon[second_letter + first_letter] = item
lexicon[key] = item

with open('letter_lexicon.pickle', 'wb') as handle:
with open('letter_lexicon_with_rotation.pickle', 'wb') as handle:
pickle.dump(lexicon, handle, protocol=pickle.HIGHEST_PROTOCOL)

with open('letter_lexicon.pickle', 'rb') as handle:
with open('letter_lexicon_with_rotation.pickle', 'rb') as handle:
copy_lexicon = pickle.load(handle)

print(copy_lexicon == lexicon)
Expand Down
Binary file added letter_lexicon_with_rotation.pickle
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14 changes: 14 additions & 0 deletions lexicon_to_csv.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,14 @@
import pickle

lexicon = {}

with open('letter_lexicon_with_rotation.pickle', 'rb') as handle:
lexicon = pickle.load(handle)

f = open("lexicon_with_rotation.csv", "w")
f.write("character #1, character #2, similarity")

for key in lexicon:
f.write("\n" + str(key)[0] + ", " + str(key)[1] + ", " + str(lexicon.get(key)))

f.close()
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