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Virtual_Keyboard1.0.py
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Virtual_Keyboard1.0.py
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import numpy as np
import cv2
from playsound import playsound
import math
import os
xs={}
prev="He"
# Load the cascade
face_cascade = cv2.CascadeClassifier('haarcascade_frontalface_default.xml')
# define range of skin color in HSV
lower_skin = np.array([0,20,70], dtype=np.uint8)
upper_skin = np.array([10,255,255], dtype=np.uint8)
# Keyboard Settings
keyboard = np.zeros((450,800,4),np.uint8)
keys_set3={ 0:"0",1:"1",2:"2",3:"3",4:"4",5:"5",6:"6",7:"7",8:"8",9:"9",
10:"Q",11:"W",12:"E",13:"R",14:"T",15:"Y",16:"U",17:"I",18:"O",19:"P",
20:"A",21:"S",22:"D",23:"F",24:"G",25:"H",26:"J",27:"K",28:"L",
29:"Z",30:"X",31:"C",32:"V",33:"B",34:"N",35:"M",36:"<<",37:"$",38:"cl",39:" "
}
kernel = np.ones((3,3),np.uint8)
sent=""
def letter(letter_index,text):
# Keys
y=int(letter_index/10)
x=(letter_index%10)
if y==3 and letter_index>37:
y=4
x=letter_index%38
if y==3 and letter_index<=37:
x+=1
if y ==2 and letter_index==29:
y=3
x=0
#print(y,x)
width=75
height=75
if y==4 and x==1:
x=(4)*75
width=150
elif y==4 and x==0:
x=(2)*75
width=150
else:
x=x*75
y=y*75
#x=x+int(y/4)
th= 3 #thickness
cv2.rectangle(img, (x+th,y+th), (x+width-th,y+height-th),(100,255,255),th)
# Text-settings
font_scale=4
font_th =3
font_letter = cv2.FONT_HERSHEY_PLAIN
text_size =cv2.getTextSize(text,font_letter,font_scale,font_th)[0]
width_text, height_text = text_size[0],text_size[1]
text_x= int((width-width_text)/2) +x
text_y = int((height+height_text)/2) +y
cv2.putText(img,text,(text_x,text_y),font_letter,font_scale,(100,255,255),font_th)
cam = cv2.VideoCapture(0)
frame_count=0
pos=0
while True:
try:
_,img = cam.read()
img= cv2.resize(img,(800,600))
img = cv2.flip( img, 1)
roi = img[1:375, 1:750]
frame = img.copy()
# Convert to grayscale
gray = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
# Detect the faces
faces = face_cascade.detectMultiScale(gray, 1.09, 4)
# Draw the rectangle around each face
for (x, y, w, h) in faces:
#cv2.rectangle(img, (x, y), (x+w, y+h), (255, 0, 0), 2)
roni = img[y:y+h,x:x+w]
img[y:y+h,x:x+w]=roni-roni
# Letters
for i in range(40):
letter(i,keys_set3[i])
imgHsv = cv2.cvtColor(roi, cv2.COLOR_BGR2HSV)
mask = cv2.inRange(imgHsv,lower_skin,upper_skin)
#extrapolate the hand to fill dark spots within
mask = cv2.dilate(mask,kernel,iterations = 4)
#blur the image
mask = cv2.GaussianBlur(mask,(5,5),100)
_,contours,hierarchy= cv2.findContours(mask,cv2.RETR_TREE,cv2.CHAIN_APPROX_SIMPLE)
#find contour of max area(hand)
cnt = max(contours, key = lambda x: cv2.contourArea(x))
#approx the contour a little
epsilon = 0.0005*cv2.arcLength(cnt,True)
approx= cv2.approxPolyDP(cnt,epsilon,True)
#make convex hull around hand
hull = cv2.convexHull(cnt)
#define area of hull and area of hand
areahull = cv2.contourArea(hull)
areacnt = cv2.contourArea(cnt)
#find the percentage of area not covered by hand in convex hull
arearatio=((areahull-areacnt)/areacnt)*100
#find the defects in convex hull with respect to hand
hull = cv2.convexHull(approx, returnPoints=False)
defects = cv2.convexityDefects(approx, hull)
# l = no. of defects
l=0
#Start list
sl=[]
#code for finding no. of defects due to fingers
for i in range(defects.shape[0]):
s,e,f,d = defects[i,0]
start = tuple(approx[s][0])
end = tuple(approx[e][0])
far = tuple(approx[f][0])
pt= (100,180)
# find length of all sides of triangle
a = math.sqrt((end[0] - start[0])**2 + (end[1] - start[1])**2)
b = math.sqrt((far[0] - start[0])**2 + (far[1] - start[1])**2)
c = math.sqrt((end[0] - far[0])**2 + (end[1] - far[1])**2)
s = (a+b+c)/2
ar = math.sqrt(s*(s-a)*(s-b)*(s-c))
#distance between point and convex hull
d=(2*ar)/a
# apply cosine rule here
angle = math.acos((b**2 + c**2 - a**2)/(2*b*c)) * 57
# ignore angles > 90 and ignore points very close to convex hull(they generally come due to noise)
if angle <= 90 and d>30:
l += 1
cv2.circle(roi, far, 3, [255,0,0], -1)
#draw lines around hand
cv2.line(roi,start, end, [0,255,0], 2)
#cv2.circle(roi,start,7,(255, 255, 255), -1)
#cv2.circle(roi,end,7,(255, 255, 255), -1)
sl.append(start)
l+=1
temp=sorted(sl,key= lambda x: x[1])[:4]
for t in temp:
cv2.circle(roi,t,7,[255,255,255],-1)
conts=contours
if(len(conts)!=1):
#cv2.drawContours(img,conts,-1,(255,0,0),3)
#x1,y1,w1,h1 = cv2.boundingRect(conts[0])
x1,y1= temp[0][0],temp[0][1]
#cv2.rectangle(img,(x1,y1),(x1+w1,y1+h1),(255,0,0),2)
height,width=75,75
th= 3 #thickness
if int(x1/width)<=9 and int(y1/height) <4 and not((int(y1/height) ==2 or int(y1/height)==3) and int(x1/width)>8):
indX = int(x1/width)
indY = int(y1/width)
if indY==3:
indX-=1
curr=keys_set3[indX+indY*10]
cv2.rectangle(img, (int(x1/width)*75+th,int(y1/height)*75+th), (int(x1/width)*75+width-th,int(y1/height)*75+height-th),(0,0,255),th)
if frame_count ==20:
cv2.rectangle(img, (int(x1/width)*75+th,int(y1/height)*75+th), (int(x1/width)*75+width-th,int(y1/height)*75+height-th),(-1),th)
playsound('sound.wav')
frame_count=0
if curr =="<<":
keyboard = np.zeros((450,800,4),np.uint8)
pos=0
sent= sent[:-1]
for _ in sent:
cv2.putText(keyboard, _ , (pos,100), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255),3, 2)
if _ =="I":
pos+=15
else:
pos+=25
elif curr=='I':
sent+=curr
cv2.putText(keyboard,curr, (pos,100), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255),3, 2)
pos+=15
elif curr=="$":
fl=open("D:/XAMPP_FOLDER/htdocs/project/lol.html","w")
fl.write(sent)
fl.close()
#fl=open("lol.html","w")
#temp="Your Text is:<br><h1 style='color:red;border: 5px solid blue;'>"+sent+"</h1>"
#fl.write(temp)
#fl.close()
#os.system("start lol.html")
else:
sent+=curr
cv2.putText(keyboard,curr, (pos,100), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255),3, 2)
pos+=25
if(curr!=prev):
frame_count=0
prev=curr
else:
frame_count+=1
elif int(x1/width)>=2 and int(x1/width)<4 and int(y1/height)==4:
height=75
width=150
cv2.rectangle(img,(150+th,int(y1/height)*75+th), (300-th,int(y1/height)*75+height-th),(0,0,255),th)
if frame_count ==12:
cv2.rectangle(img, (int(x1/width)*75+th,int(y1/height)*75+th), (int(x1/width)*75+width-th,int(y1/height)*75+height-th),(-1),th)
playsound('sound.wav')
frame_count=0
keyboard = np.zeros((450,800,4),np.uint8)
pos=0
sent=""
if(curr!=prev):
frame_count=0
prev=curr
else:
frame_count+=1
elif int(x1/width)>=4 and int(x1/width)<6 and int(y1/height)==4:
curr=" "
print(curr)
height=75
width=150
cv2.rectangle(img, (300+th,int(y1/height)*75+th), (450-th,int(y1/height)*75+height-th),(0,0,255),th)
if frame_count ==12:
sent+=curr
cv2.rectangle(img, (int(x1/width)*75+th,int(y1/height)*75+th), (int(x1/width)*75+width-th,int(y1/height)*75+height-th),(-1),th)
playsound('sound.wav')
frame_count=0
cv2.putText(keyboard,curr, (pos,100), cv2.FONT_HERSHEY_SIMPLEX, 1, (255, 255, 255),3, 2)
pos+=25
if(curr!=prev):
frame_count=0
prev=curr
else:
frame_count+=1
else:
prev="He"
for (x, y, w, h) in faces:
img[y:y+h,x:x+w]+=frame[y:y+h,x:x+w]
cv2.imshow('virtual', img)
cv2.imshow('board',keyboard)
cv2.imshow('mask',mask)
except:
pass
key=cv2.waitKey(1)
if key==27:
break
cam.release()
cv2.destroyAllWindows()