Advertisements From an image that captured from an online MJPG streamer by CV2, I want to count its colors by Pillow. What I tried: import cv2 from PIL import Image url = "http://link-to-the-online-MJPG-streamer/mjpg/video.mjpg" cap = cv2.VideoCapture(url) ret, original_image = cap.read() img_cv2 = cv2.cvtColor(original_image, cv2.COLOR_BGR2RGB) img_pil = Image.fromarray(img_cv2) im = Image.open(img_cv2).convert(‘RGB’) na = np.array(im) colours, counts… Read More Convert image captured from online MJPG streamer by CV2, to Pillow format

Advertisements I’m working on a system that recieves bytes object containing an image in format which is not known in advance and is supposed to work with it. I am using PIL to do the work for me. The documentation says that PIL.Image.open() can identify the file, even when a file object is passed. I… Read More Why can't PIL identify SVG images from stream?

Advertisements I am learning python but https://github.com/python-pillow/Pillow/blob/main/src/PIL/JpegImagePlugin.py#L435-L437 https://github.com/python-pillow/Pillow/blob/31669013d420c2a532f5be6c5631827fe36e6f70/src/PIL/JpegImagePlugin.py#L435-L437 I am watching the code of PIL of python then I can not understand here. for s in [8, 4, 2, 1]: if scale >= s: break Is the PIL library wrong? I did: watch the code and think about it. >Solution : The variable s will… Read More what is the use-case of Python3 only `if` and `break` in `for`?

Advertisements I am trying to develop a Python application whose goal is to display a certain picture depending of the selected value in a ComboBox. Unluckily the script displays the following error: return self.func(*args) ^^^^^^^^^^^^^^^^ TypeError: RadianceGBA.on_select() missing 1 required positional argument: ‘event’ Here is the code I am using: import tkinter as tk from… Read More Tkinter: App.on_select() missing 1 required positional argument: 'event'

Advertisements I’ve written a few scripts that mess around with images and shifting their colors using PIL, and I noticed that when I load in an RGB image and convert it to a palette, it uses the correct colors, but the color palette that it stores includes a bunch of black colors for the color… Read More How to remove unused colors from palette using PIL

Advertisements i have problem with speed of MapReduce . Is there any faster library instead of this ? i tried this for many time but not work as good as we want. >Solution : You can use Apache Spark Mlib It’s 100x faster than MapReduce.

Advertisements This piece of code is working, but I want to avoid the use of the temporal file, i have tried differents ways but not working. Does anyone knows how to do it? or the temp file is mandatory? from PIL import Image import matplotlib.pyplot as plt import numpy as np … data = Image.fromarray(np.array(image))… Read More How can i read an image with Pyplot from memory instead of a file?

Advertisements This piece of code is working, but I want to avoid the use of the temporal file, i have tried differents ways but not working. Does anyone knows how to do it? or the temp file is mandatory? from PIL import Image import matplotlib.pyplot as plt import numpy as np … data = Image.fromarray(np.array(image))… Read More How can i read an image with Pyplot from memory instead of a file?

Advertisements I’m getting: OSError at /admin/blog/post/add/ cannot write mode RGBA as JPEG error when uploading an image file other than ‘jpeg’ with Pillow. This is the function I’m using to resize the image: def resize_image(image, size): """Resizes image""" im = Image.open(image) im.convert(‘RGB’) im.thumbnail(size) thumb_io = BytesIO() im.save(thumb_io, ‘JPEG’, quality=85) thumbnail = File(thumb_io, name=image.name) return thumbnail… Read More 'cannot write mode RGBA as JPEG' when saving image

Advertisements I’m currently working on a little project in which I’m trying to generate a random image of a set size with a set palette. Everything generates fine and dandy, but zooming in on the image shows the pixels are interpolated in a way that doesn’t look great. I would prefer if the pixels had… Read More PIL creating a fuzzy image