25. HSV Conversion
Nd113 C7 23 L HSV Conversion
HSV Conversion
In the code example, I used HSV space to help detect a green screen background under different lighting conditions. OpenCV provides a function hsv = cv2.cvtColor(im, cv2.COLOR_RGB2HSV)
that converts images from one color space to another.
After this conversion, I plotted the individual color channels; it was easy to see that the Hue channel remained fairly constant under different lighting conditions.
![H, S, and V channels for the green screen car image.](img/screen-shot-2017-12-18-at-7.26.29-pm.png)
H, S, and V channels for the green screen car image.
Next, I used the same masking code as before only using a Hue channel color mask, next you'll see how this looks in a notebook!