How to resize image and maintain aspect ratio

Question

I have an image of a puzzle piece that i need to resize in order for both the pieces I need to compare to have the same size. I have used the following codes to resize my image. The problem is the length of the line in the image 1 is 187 and after resizing the length of the line in image 2 is 194. intended output is for them to be same ratio = math.hypot(x2 - x1, y2 - y1) / math.hypot(x4 - x3, y4 - y3) print("img1", math.hypot(x2 - x1, y2 - y1),"img 2", math.hypot(x4 - x3, y4 - y3)*ratio) n = int(ratio * new_img_2.shape[0]) img = cv2.resize(new_img_2, (n, n), cv2.INTER_CUBIC) JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

I'm not entirely sure what you're asking but it seems like you want to resize two images and maintain aspect ratio between the two. If so, here's a function to resize a image and maintain aspect ratio to any width or height. import cv2 # Resizes a image and maintains aspect ratio def maintain_aspect_ratio_resize(image, width=None, height=None, inter=cv2.INTER_AREA): # Grab the image size and initialize dimensions dim = None (h, w) = image.shape[:2] # Return original image if no need to resize if width is None and height is None: return image # We are resizing height if 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) # We are resizing width if height is none else: # Calculate the ratio of the 0idth and construct the dimensions r = width / float(w) dim = (width, int(h * r)) # Return the resized image return cv2.resize(image, dim, interpolation=inter) if __name__ == '__main__': image = cv2.imread('../color_palette.jpg') cv2.imshow('image', image) cv2.waitKey(0) resized = maintain_aspect_ratio_resize(image, width=400) cv2.imshow('resized', resized) cv2.waitKey(0) You may want to rephrase your question to be more clear.