
How to crop an image in OpenCV using Python - Stack Overflow
def cropImage(Image, XY: tuple, WH: tuple, returnGrayscale=False): # Extract the x,y and w,h values (x, y) = XY (w, h) = WH # Crop Image with numpy splitting crop = Image[y:y + h, x:x + …
What is the easy way to crop a part of image using Python OpenCV
Mar 18, 2022 · In the above code, you can see that I have defined a function call on_mouse which basically gives us the coordinates (x, y) wherever the mouse clicks on the image. This helps in …
Basic Python OpenCV cropping and resizing - Stack Overflow
Aug 17, 2017 · import cv2 im_path = "path/to/image" img = cv2.imread(im_path) crop_img = img[0:400, 0:300] # Crop from {x, y, w, h } => {0, 0, 300, 400} cv2.imshow("cropped", …
python - How to crop the internal area of a contour ... - Stack …
Feb 27, 2015 · # The index of the contour that surrounds your object mask = np.zeros_like(img) # Create mask where white is what we want, black otherwise cv2.drawContours(mask, contours, …
How to crop an image based on its coordinates in Python Opencv
Apr 12, 2022 · How to crop an image in OpenCV using Python crop_img = rightImg[y:y+h, x:x+w] cv2.imshow("cropped", crop_img) cv2.waitKey(0) Be careful of marked as duplicates.
python - How to crop OpenCV Image from center - Stack Overflow
May 21, 2020 · The line you provided crops the image region located at (x,y) with (w,h) width and height. Not sure if this is around the center of the image. To crop (w,h) region around the …
NumPy/OpenCV 2: how do I crop non-rectangular region?
The following code would be helpful for cropping the images and get them in a white background. import cv2 import numpy as np # load the image image_path = 'input image path' image = …
Cropping Concave polygon from Image using Opencv python
Jan 17, 2018 · Apply mask to original image. res = cv2.bitwise_and(img,img,mask = mask) Optionally you can remove the crop the image to have a smaller one. rect = …
python - Rotate image and crop out black borders - Stack Overflow
May 23, 2013 · My application: I am trying to rotate an image (using OpenCV and Python) At the moment I have developed the below code which rotates an input image, padding it with black …
python - How to use OpenCV to crop circular image ... - Stack …
Apr 30, 2020 · Here is one way to do that in Python/OpenCV. Read the input and get its dimensions; Define the radii of the two circles and the center coordinates; Create a white filled …