/Python/Python cv2 resize keep aspect ratio

Python cv2 resize keep aspect ratio

def image_resize(image, width = None, height = None, inter = cv2.INTER_AREA):
    # initialize the dimensions of the image to be resized and
    # grab the image size
    dim = None
    (h, w) = image.shape[:2]

    # if both the width and height are None, then return the
    # original image
    if width is None and height is None:
        return image

    # check to see if the width is None
    if width is None:
        # calculate the ratio of the height and construct the
        # dimensions
        r = height / float(h)
        dim = (int(w * r), height)

    # otherwise, the height is None
    else:
        # calculate the ratio of the width and construct the
        # dimensions
        r = width / float(w)
        dim = (width, int(h * r))

    # resize the image
    resized = cv2.resize(image, dim, interpolation = inter)

    # return the resized image
    return resized

Source: stackoverflow.com

Similar codes

0 vote127 views1 answer
Python print date, time and timezone
Python
-1 vote116 views1 answer
Get git sha
Python
2 votes119 views2 answers
Python defaultdict to dict
Python
1 vote172 views1 answer
Indentation levels in programming
Python
2 votes140 views1 answer
Python how to unnest a nested list
Python
0 vote202 views1 answer
Python program to switch first and second characters in a string
Python
0 vote132 views1 answer
Half String
Python
6 votes130 views2 answers
Python get current time in seconds
Python
6 votes134 views1 answer
Anaconda python update packages
Python
0 vote138 views2 answers
Python togli spazio
Python