如何将 PIL 图像转换为 cv2/numpy 数组

Question

Im trying to convert a pil image to a numpy array but i want the image to keep it's transperancy, how can i do that?

Iv'e tried using numpy.array() But it doesnt keep the transperancy

Answer 1

I'm not quite sure what you mean by it doesn't keep its transparency. If you convert a PIL image with transparency using numpy.array() it should return a numpy array with shape width, height, 4 where the 4th channel will represent the alpha channel values. And after whatever processing you need to do, if you convert it back to a PIL image using Image.fromarray() and perhaps saving with Image.save() you should get back an image with the same transparency. Can't help you much more without seeing an actual snippet of the code and possibly the image.