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I want to detect the color, which I have done with the following code:

import cv2 as cv import numpy as np cap = cv.VideoCapture(0) while(1): # Take each frame _, frame = cap.read() # Convert BGR to HSV hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV) # define range of blue color in HSV

lower_blue = np.array([100,55,55])
upper_blue = np.array([105,255,255])
# Threshold the HSV image to get only blue colors
mask = cv.inRange (hsv, lower_blue, upper_blue)
# Bitwise-AND mask and original image
res = cv.bitwise_and(frame,frame, mask= mask)
cv.imshow('frame',frame)
cv.imshow('mask',mask)
cv.imshow('res',res)
k = cv.waitKey(5) & 0xFF
if k == 27:
    break

cv.destroyAllWindows()

but want to know how to draw a rectangle around it?

I want to detect the color, which I have done with the following code:

import cv2 as cv import numpy as np np

cap = cv.VideoCapture(0) while(1): # Take each frame cv.VideoCapture(0)

while(1):

_, frame = cap.read()
 # Convert BGR to HSV
 hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV)
 # define range of blue color in HSV
 
HSV
lower_blue = np.array([100,55,55])
upper_blue = np.array([105,255,255])
# Threshold the HSV image to get only blue colors
mask = cv.inRange (hsv, lower_blue, upper_blue)
# Bitwise-AND mask and original image
res = cv.bitwise_and(frame,frame, mask= mask)
cv.imshow('frame',frame)
cv.imshow('mask',mask)
cv.imshow('res',res)
k = cv.waitKey(5) & 0xFF
if k == 27:
    break
 
cv.destroyAllWindows()
 
but want to know how to draw a rectangle around it?