def separate_words(line):
line_hist = cv2.reduce(line, 0, cv2.REDUCE_AVG).reshape(-1)
new_line = cv2.cvtColor(line, cv2.COLOR_GRAY2BGR)
line_peaks = peakdetect(line_hist, lookahead=50)
Hl, Wl = new_line.shape[:2]
words = []
for y in line_peaks[0]:
if y[1] == 255:
words.append(y[0])
# plt.plot(y[0], y[1], "r*")
if y[1] == 255:
cv2.line(new_line, (y[0], 0), (y[0], Hl), (255, 0, 0), 3)
# for y in line_peaks[1]:
# plt.plot(y[0], y[1], "g*")
# if y[1] == 255:
# words.append(y[0])
# cv2.line(new_line, (y[0], 0), (y[0], Hl), (0, 255, 0), 3)
words.insert(0, 0)
words.append(Wl)
# plt.imshow(new_line, cmap=plt.cm.gray)
# plt.show()
return words
def separate_cha(line):
line_hist = cv2.reduce(line, 0, cv2.REDUCE_AVG).reshape(-1)
new_line = cv2.cvtColor(line, cv2.COLOR_GRAY2BGR)
line_peaks = peakdetect(line_hist, lookahead=25)
Hl, Wl = new_line.shape[:2]
cha = []
# for y in line_peaks[0]:
# plt.plot(y[0], y[1], "r*")
# cv2.line(new_line, (y[0], 0), (y[0], Hl), (255, 0, 0), 3)
for y in line_peaks[0]:
if y[1] >= 235:
cha.append(y[0])
# plt.plot(y[0], y[1], "g*")
cv2.line(new_line, (y[0], 0), (y[0], Hl), (0, 255, 0), 3)
cha.insert(0, 0)
cha.append(Wl)
# plt.plot(line_hist)
# plt.show()
# plt.imshow(new_line, cmap=plt.cm.gray)
# plt.show()
return cha
def find_degree(image):
min_score = 999999
degree = 0
for d in range(-6, 7):
rotated_image = rotate_max_area(image, d)
ri_hist = cv2.reduce(rotated_image, 1, cv2.REDUCE_AVG).reshape(-1)
line_peaks = peakdetect(ri_hist, lookahead=30)
score_ne = num_ne = 0
score_po = num_po = 0
for y in line_peaks[0]:
score_ne -= (y[1] * 1)
num_ne += 1
for y in line_peaks[1]:
score_po += (y[1] * 1)
num_po += 1
score = score_ne / num_ne + score_po / num_po
print("score: ", score, " degree: ", d)
print(": ", score_ne / num_ne, " : ", score_po / num_po)
if score < min_score:
degree = d
min_score = score
print(degree)
rotated_image = rotate_max_area(image, degree)
plt.imshow(rotated_image, cmap=plt.cm.gray)
plt.show()
def separate_words(line):
line_hist = cv2.reduce(line, 0, cv2.REDUCE_AVG).reshape(-1)
new_line = cv2.cvtColor(line, cv2.COLOR_GRAY2BGR)
line_peaks = peakdetect(line_hist, lookahead=20)
Hl, Wl = new_line.shape[:2]
for y in line_peaks[0]:
plt.plot(y[0], y[1], "r*")
cv2.line(new_line, (y[0], 0), (y[0], Hl), (255, 0, 0), 3)
for y in line_peaks[1]:
plt.plot(y[0], y[1], "g*")
# cv2.line(new_line, (y[0], 0), (y[0], Hl), (0, 255, 0), 3)
# print(y)
plt.plot(line_hist)
plt.show()
return new_line
def find_degree(image):
min_score = 999999
degree = 0
for d in range(-6, 7):
rotated_image = rotate_max_area(image, d)
# cv2.imwrite('./tr_' + str(d) + '.jpg', rotated_image)
ri_hist = cv2.reduce(rotated_image, 1, cv2.REDUCE_AVG).reshape(-1)
# plt.plot(ri_hist)
# plt.savefig('./tr_' + str(d) + '_h.jpg')
# plt.clf()
# plt.show()
line_peaks = peakdetect(ri_hist, lookahead=30)
score_ne = num_ne = 0
score_po = num_po = 0
for y in line_peaks[0]:
score_ne -= (y[1] * 1)
num_ne += 1
for y in line_peaks[1]:
score_po += (y[1] * 1)
num_po += 1
score = score_ne / num_ne + score_po / num_po
# print("score: ", score, " degree: ", d)
# print(": ", score_ne / num_ne, " : ", score_po / num_po)
if score < min_score:
degree = d
min_score = score
# print('Degree: ', degree)
rotated_image = rotate_max_area(image, degree)
# plt.imshow(rotated_image, cmap=plt.cm.gray)
# plt.show()
return rotated_image
s_img_2 = img_as_ubyte(binary_sauvola)
# cv2.imwrite('./t1_2.jpg', s_img_2)
s_img_2[img3 == 255] = 255
# cv2.imwrite('./t4.jpg', s_img_2)
new_img = cv2.cvtColor(s_img_2, cv2.COLOR_GRAY2BGR)
rotated = find_degree(new_img)
rotated = cv2.cvtColor(rotated, cv2.COLOR_RGB2GRAY)
hist = cv2.reduce(rotated, 1, cv2.REDUCE_AVG).reshape(-1)
H, W = rotated.shape[:2]
peaks = peakdetect(hist, lookahead=40)
rotated2 = cv2.cvtColor(rotated, cv2.COLOR_GRAY2BGR)
peak = []
for y in peaks[0]:
peak.append(y[0])
# plt.plot(y[0], y[1], "r*")
cv2.line(rotated2, (0, y[0]), (W, y[0]), (255, 0, 0), 3)
# for y in peaks[1]:
# peak.append(y[0])
# plt.plot(y[0], y[1], "g*")
# cv2.line(rotated, (0, y[0]), (W, y[0]), (0, 255, 0), 3)
# plt.plot(hist)
# plt.savefig('hist.jpg')
# plt.clf()