Remove alpha channel from png cv2 Image to remove the alpha channel. Refer to the following article for obtaining the size of the image read as NumPy array ndarray. 2) <0 Return the loaded image as is (with alpha channel). It is calculated as follows according to parameters. imread('image. Aiming to avoid that problem, the following code removes the alpha channel layer from your overlay images, and therefore allows us to obtain good results on the sample codes we have in this chapter: May 14, 2019 · Use cv2. If images are in numpy array to convert the array to Image use Image. jpg',negative value) As per openCV documentation, If Flag value is, 1) =0 Return a grayscale image. import cv2 #load image with alpha channel. imread('imagepath. IMREAD_UNCHANGED) image_without_alpha = remove_alpha_channel(image) Removing the alpha channel from images is a common task that helps convert images with transparency into standard formats. addWeighted() to do alpha blending with OpenCV. . Here is an example of how you can use the remove_alpha_channel function to remove the alpha channel from a numpy array image: import cv2 image = cv2. I load images with numpy/scikit. If you need higher speed, you can use cvtColor in cv2 (openCV): It took 1/4 time of numpy slice method. Feb 16, 2024 · The best possible way to load a png image with all 4 channels is ; img= cv2. I know that all images are 200x200 pixels. Dec 11, 2018 · Here's a basic script that will replace all fully transparent pixels with white and then remove the alpha channel. Mar 9, 2016 · Use PIL. png', cv2. This guide explains how to strip the alpha channel using Python and OpenCV, a popular library for image processing. fromarray to convert array to Image. The two images need to be the same size, so resize them. hugvn yrf obbw atnyjso nkjva lbo uym tgd ucxvh jvud