def capture_hist():
cap = cv2.VideoCapture(0)
keyc, keys = False, False
while True:
key = cv2.waitKey(1)
_, frame = cap.read()
#frame = cv2.resize(frame,(720,480))
flip = cv2.flip(frame, 1)
hsv_flip = cv2.cvtColor(flip, cv2.COLOR_BGR2HSV)
y, x, c = flip.shape
x1 = int(x / 2)
y1 = int(y / 4)
x2 = x1 + 70
y2 = y1 + 200
rect = cv2.rectangle(flip, (x1, y1), (x2, y2), (255, 0, 0), 1)
cv2.imshow("RAW", flip)
if key == ord('c'):
keyc = True
roi = flip[y1:y2, x1:x2]
hsv_roi = cv2.cvtColor(roi, cv2.COLOR_BGR2HSV)
roi_hist = cv2.calcHist([hsv_roi], [0, 1], None, [180, 256],
[0, 180, 0, 256])
if key == ord('s'):
pickle_out = open("hist.pickle", "wb")
pickle.dump(roi_hist, pickle_out)
print("histogram saved successfully")
pickle_out.close()
cap.release()
cv2.destroyAllWindows()
break
if key == ord('x'):
cap.release()
cv2.destroyAllWindows()
break
'''
depending on key pressed we take the action we want to
'''
if keyc:
back = method_backproject(hsv_flip, roi_hist)
cv2.imshow("back project", back)
def prediction_method():
previous = 0
j = 0
font = cv2.FONT_HERSHEY_SIMPLEX
roi_hist = pickle.load(open("hist.pickle",'rb'))
model = keras.models.load_model("a-z.h5")
cap = cv2.VideoCapture(0)
i = 1
hit = 0
keyw = False
j = 0
width = 30
word = np.ones((200,600))
array = []
printed_letter = '-'
letter = '-'
space = False
word_string = ''
keys = False
while True:
_,frame = cap.read()
###resize
frame = cv2.resize(frame,(640,450))
key = cv2.waitKey(1) # always remember to place inside while loop
flip = cv2.flip(frame,1)
y,x,c = flip.shape
x1 = int(x/2)
y1 = int(y/4)
x2 = x1+300
y2 = y1+200
count = 0
flip_crop = flip[y1:y2,x1:x2]
rect = cv2.rectangle(flip, (x1,y1), (x2,y2), (255,0,0), 1)
hsv_flip_crop = cv2.cvtColor(flip_crop,cv2.COLOR_BGR2HSV)
cv2.imshow('flip',flip)
mask = method_backproject(hsv_flip_crop,roi_hist)
cv2.imshow('mask',mask)
prediction = model.predict([prepare(mask)])
prediction = prediction[0]
old_letter = array.append(letter)
if len(array) == 20:
array = array[1:]
print(array)
letter = display(prediction)
print(letter)
for old_letter in array:
if letter == old_letter:
count = count + 1
print(count)
if key == ord('w'):
keyw = True
if key == ord(' '):
space = True
if key == ord('s'):
say(word_string)
if key == ord('t'):
translate(word_string)
if keyw:
if letter != "-" and count > 18:
say(letter)
if space:
word_string = word_string + " "
else:
word_string = word_string + letter
if keys:
print("s is called")
print("this is the string created"+str(word_string))
if space:
width = width + 70
space = False
cv2.putText(word, f"{letter}", (width,100), font, 2, (0, 255, 0),2)
array = []
width = width + 30
cv2.imshow("word",word)
if key == ord('x'):
break
cap.release()
cv2.destroyAllWindows()