Color Mapping

With OpenCV we can use different colorspaces other than RGB, this is the case of HSL and HSV, that stand for Hue-saturation-lightness and hue-saturation-value.

Here how HSL will look like

and here how HSV will look like

Now in in openCV we can transform or convert the different pictures to a different colorspace.

Import Libraries

First the imports

import cv2
import matplotlib.pyplot as plt
import numpy as np
%matplotlib inline # this line is  just for jypiter lab or notebooks

now with the imports we read or get the image we are going to use to work with

img = cv2.imread('../DATA/00-puppy.jpg')

Converting to Different Colorspaces

now, we did this before, we convert from BGR to RGB

img = cv2.ctvColor(img, cv2.COLOR_BGR2RGB)
plt.imshow(img)

Convert to HSV

now, first HSV

img = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
plt.imshow(img)

Convert to HSL

the next one will be HSL

img = cv2.imread('../DATA/00-puppy.jpg')
img = cv2.cvtColor(img, cv2.COLOR_BGR2HLS)
plt.imshow(img)