Jan 17, 2018 · How can I crop a concave polygon from an image. My Input image look like . and the coordinates of closed polygon are [10,150],[150,100],[300,150],[350,100],[310,20],[35,10].

Mar 23, 2014 · The polygon points along with the uncut, original image are sent by client to the server. Is there a way that I can clip (crop) the original image along these points in Python server, and save the cropped image?

May 3, 2024 · poly_crop is a Python library for cropping polygons in images. You can install poly_crop via pip: The crop function is used to crop a polygonal region from an image. The preview function is used to draw a preview of a polygonal region on an image. This project is licensed under the MIT License - see the LICENSE file for details.

Jun 17, 2021 · PIL.Image.crop () method is used to crop a rectangular portion of any image. box – a 4-tuple defining the left, upper, right, and lower pixel coordinate. Return type: Image (Returns a rectangular region as (left, upper, right, lower)-tuple). Return: An Image object. Code #1: Original Image. Output: Code #2: Original Image: Output:

Jan 3, 2023 · In this article, we will discuss how to crop images using OpenCV in Python. For this, we will take the image shown below. cv2.imread () method loads an image from the specified file. If the image cannot be read (because of the missing file, improper permissions, unsupported or invalid format) then this method returns an empty matrix.

May 14, 2019 · The image processing library Pillow (PIL) of Python provides Image.crop() for cutting out a partial area of an image. Image.crop() - Pillow (PIL Fork) 10.2.0 documentation; This article describes the following contents with sample code. Normal crop; Specify outside area; Crop the center of the image; Crop the largest square from the rectangle

In this tutorial we will demonstrate how to crop images using Python’s PIL library. Image cropping is sometimes used synonymously with image clipping or image trimming as well as image cutting.

Dec 15, 2023 · In this tutorial, you will learn two methods for cropping an image using Python. The first one is square cropping and the second one is cropping any shape based on your chosen coordinates (cropping coordinate-wise). The second method is very useful for practical use.

Apr 26, 2024 · In this article, we will see various ways you can crop an image in Python by using libraries like OpenCV, Pillow, and NumPy. In this tutorial, we will use the below image in all the examples of cropping image with Python. Before going into the actual examples let us first visualize the area that will be cropped out in all the examples.

Mar 26, 2025 · Image Cropping Syntax using OpenCV. OpenCV does not have a dedicated function for image cropping. Instead, image cropping is done using array slicing (in Python) or ROI (Region of Interest) selection (in C++). Since an image is stored as a multi-dimensional array (a NumPy array in Python or cv::Mat in C++), you can crop an image by selecting a …