How to Cut an Image Vertically into Two Equal Sized Images

user_8122355 0
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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:

Paper being cut into halves

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.

opencv3.1 image-resizing opencv numpy python
3 Answers
import cv2   
# Read the image
img = cv2.imread('your file name')
print(img.shape)
height = img.shape[0]
width = img.shape[1]

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

cv2.imwrite("file path where to be saved", s1)
cv2.imwrite("file path where to be saved", s2)
user_92344060

you can define following function to simply slice every image you want to two vertical parts.

def imCrop(x):
    height,width,depth = x.shape
    return [x[height , :width//2] , x[height, width//2:]]

and then you can simply for example plot the right part of the image by:

plt.imshow(imCrop(yourimage)[1])
user_128975580
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