![]() ![]() The following ways to concatenate the images is explained through below the code as: Python3 import cv2 img1 cv2.imread ('sea.jpg') img2 cv2.imread ('man.jpeg') Concatenate vertically: cv2.vconcat () is used to combine images of same width vertically. In the Python program below, we resize the input image using different scaling factors and interpolations. Images with different sizes can be resized. New height and width of original image: 340, 450Īnd it will display the following output window showing the original and resized images. When you run the above program, it will produce the following output − Height and width of original image: 465, 700 resize (img, new_size ) # Convert the images from BGR to RGB Print ( f"Height and width of original image: " ) In the following Python program, we resize the input image to new_size = 450, 340). For example, this will resize both axes by half: small cv2.resize(image, (0,0), fx0.5. We will use this image as the input file in the following examples − If you wish to use CV2, you need to use the resize function. Let's understand the different image resizing options with the help of some Python examples. Resize_img = cv2.resize(img,(0, 0),fx=0.5, fy=0.7, interpolation = cv2.INTER_AREA)ĭisplay the resized image(s). fx and fy are scale factors to width and height respectively. Resize the image passing the new_size or the scaling factors fx and fy and the interpolation. Specify the full image path with image types (.jpg or. To resize an image, OpenCV provides cv2.resize () function. Also, the aspect ratio of the original image could be preserved in the resized image. Read an image using cv2.imread() function. Resizing an image means changing the dimensions of it, be it width alone, height alone or changing both of them. An image can be resized in the following ways. Make sure you have already installed them. In all the following Python examples, the required Python libraries are OpenCV and Matplotlib. import cv2 filename 'pathtoimage' image cv2.imread (filename) small cv2.resize (image, (0,0), fx0.5, fy0.5) large cv2.resize (image, (0,0), fx1.5, fy1.5) cv2.imshow ('small image',small) cv2.imshow ('large image',large) To save rescale image cv2.imwrite ('s.jpg',small) cv2.imwrite ('l.jpg',large) cv2. You can use the following steps to resize an image − There are different interpolation methods used in cv2.resize() function −Ĭv2.INTER_AREA − Used for shrinking an image.Ĭv2.INTER_CUBIC − It’s slow, used for zooming.Ĭv2.INTER_LINEAR − Used for zooming. The aspect ratio is preserved when we specify the scaling factor. ![]() We can resize an image by specifying the image size or scaling factor. Resizing in OpenCV is referred to as scaling. OpenCV provides the function cv2.resize() to resize an image. ![]()
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