How to Cut an Image Vertically into Two Equal Sized Images

Question

So I have an 800 x 600 image that I want to cut vertically into two equally sized pictures using OpenCV 3.1.0. This means that at the end of the cut, I should have two images that are 400 x 600 each and are stored in their own PIL variables.

Here's an illustration:

Thank you.

EDIT: I want the most efficient solution so if that solution is using numpy splicing or something like that then go for it.

Answer 1

You can try the following code which will create two numpy.ndarray instances which you can easily display or write to new files.

from scipy import misc

# Read the image
img = misc.imread("face.png")
height, width = img.shape

# Cut the image in half
width_cutoff = width // 2
s1 = img[:, :width_cutoff]
s2 = img[:, width_cutoff:]

# Save each half
misc.imsave("face1.png", s1)
misc.imsave("face2.png", s2)

The face.png file is an example and needs to be replaced with your own image file.