python-imaging-library

问题 I am trying to do some video stream from my raspberry pi over the wifi. I used pygame, because i also have to use gamepad in my project. Unfortunately I stucked on displaying received frame. Shortly: i get jpeg frame, open it with PIL, convert to string - after that i can load image from string image_stream = io.BytesIO() ... frame_1 = Image.open(image_stream) f = StringIO.StringIO() frame_1.save(f, "JPEG") data = f.getvalue() frame = pygame.image.fromstring(frame_1,image_len,"RGB") screen

问题 I am trying to do some video stream from my raspberry pi over the wifi. I used pygame, because i also have to use gamepad in my project. Unfortunately I stucked on displaying received frame. Shortly: i get jpeg frame, open it with PIL, convert to string - after that i can load image from string image_stream = io.BytesIO() ... frame_1 = Image.open(image_stream) f = StringIO.StringIO() frame_1.save(f, "JPEG") data = f.getvalue() frame = pygame.image.fromstring(frame_1,image_len,"RGB") screen

问题 I have been using PIL Image I am trying to draw text on an image. I want this text to have a black outline like most memes. I've attempted to do this by drawing a shadow letter of a bigger font behind the letter in front. I've adjusted the x and y postions of the shadow accordingly. The shadow is slightly off though. The letter in front should be exactly in the middle of the shadow letter, but this isn't the case. The question mark certainly isn't centered horizontally, and all the letters

问题 so I've been trying to code a Python script, which takes an image as input and then cuts out a rectangle with a specific background color. However, what causes a problem for my coding skills, is that the rectangle is not on a fixed position in every image (the position will be random). I do not really understand how to manage the numpy functions. I also read something about OpenCV, but I'm totally new to it. So far I just cropped the images through the ".crop" function, but then I would have

问题 How can I compare two images? I found Python's PIL library, but I do not really understand how it works. 回答1: To check does jpg files are exactly the same use pillow library: from PIL import Image from PIL import ImageChops image_one = Image.open(path_one) image_two = Image.open(path_two) diff = ImageChops.difference(image_one, image_two) if diff.getbbox(): print("images are different") else: print("images are the same") 回答2: based on Victor Ilyenko's answer, I needed to convert the images to

问题 I have an integer numpy array representing image with few values (about 2-5). And I would like to save it to png file with custom color for every value. I was trying it like this: import numpy as np from PIL import Image array = np.zeros([100, 200, 4], dtype=np.uint8) array[:,:100] = [255, 128, 0, 255] #Orange left side array[:,100:] = [0, 0, 255, 255] #Blue right side img = Image.fromarray(array) img.save(r'D:\test.png') The result is ok, but it has 4 channels. I need the result to be single

问题 I have an integer numpy array representing image with few values (about 2-5). And I would like to save it to png file with custom color for every value. I was trying it like this: import numpy as np from PIL import Image array = np.zeros([100, 200, 4], dtype=np.uint8) array[:,:100] = [255, 128, 0, 255] #Orange left side array[:,100:] = [0, 0, 255, 255] #Blue right side img = Image.fromarray(array) img.save(r'D:\test.png') The result is ok, but it has 4 channels. I need the result to be single

问题 I get the error: ModuleNotFoundError: No module named 'PIL' I installed PIL using pip but get the error. I used the code below to import Pillow library: from PIL import ImageTk,Image Any help? 回答1: PyCharm uses a virtual environment for every project. You may have installed PIL outside of your venv. To install it inside, do this. Open your project At the bottom of your screen, hit Terminal From there, pip install -U pillow Note: When making the project, you may not have checked the button,

问题 Some case study here. I am trying to play with PIL library in Google Colab, and can't get ImageFont to read my originally zipped file. The code: import requests, zipfile, io r3 = requests.get('https://sources.archlinux.org/other/community/ttf-roboto/ttf-roboto-hinted-2.138.zip') z3 = zipfile.ZipFile(io.BytesIO(r3.content)) z3.extractall() So far so good, and if I browse my directory with ls, it shows me the elements: ls Shows: LICENSE RobotoCondensed-Regular.ttf __MACOSX/ Roboto-Italic.ttf

问题 Some case study here. I am trying to play with PIL library in Google Colab, and can't get ImageFont to read my originally zipped file. The code: import requests, zipfile, io r3 = requests.get('https://sources.archlinux.org/other/community/ttf-roboto/ttf-roboto-hinted-2.138.zip') z3 = zipfile.ZipFile(io.BytesIO(r3.content)) z3.extractall() So far so good, and if I browse my directory with ls, it shows me the elements: ls Shows: LICENSE RobotoCondensed-Regular.ttf __MACOSX/ Roboto-Italic.ttf