Given the next picture:
robot = io.imread('robot.png')
robot will be a 1277x789x3 RGB matrix.
The question is that I want to change the orange color of the robot to purple, like this:
the problem is that I don't know how to detect the robot's orange color. Any suggestions?
I found a similar problem here: I want to change the colors in image with python from specific color range to another color
Following the code from link above and changing some parameters:
#!/usr/local/bin/python3
import cv2 as cv
import numpy as np
# Load the aerial image and convert to HSV colourspace
image = cv.imread("path/image.jpg")
hsv=cv.cvtColor(image,cv.COLOR_BGR2HSV)
# Define lower and uppper limits of what we call "orange"
orange_lo=np.array([10,100,20])
orange_hi=np.array([30,255,255])
# Mask image to only select oranges
mask=cv.inRange(hsv,orange_lo,orange_hi)
# Change image to purple where we found orange
image[mask>0]=(188,0,188)
cv.imwrite("result.png",image)
