Python image size 在本文中，我们介绍了如何使用Python的PIL库获取图像的大小（字节数）。通过PIL库，我们可以方便地打开、处理和保存各种类型的图像文件，并获取图像的属性信息。 一旦我们得到了一个代表图像的Image对象，我们可以使用它的size属性获取图像的大小。size属性返回一个包含宽度和高度的元组。 image_size = image. See examples of opening an image file, accessing the size property, and printing the dimensions. 0 documentation. By utilizing the Image module and its size attribute, we can efficiently obtain image dimensions without the need for resource-intensive operations. However, this method can be inefficient and resource-intensive, especially when dealing with large images or a […] Jan 10, 2021 · 画像処理ライブラリPillow(PIL)のImageモジュールに、画像をリサイズ（拡大・縮小）するメソッドresize()が用意されている。 Image. It returns width, height as a tuple with 2 elements: This function doesn't seem to exist in OpenCV 3. # Not having the same quantization can result in different sizes between the in- # memory image and the file size on disk. resize(size, resample=0) Returns a resized copy of this image. Apr 12, 2025 · Learn how to get and modify image dimensions in Python using PIL, OpenCV, and other libraries. size print("图像大小：", image_size) 上述代码会打印出图像的大小，结果类似于： May 22, 2024 · When working with images in Python, it is often necessary to retrieve specific information about them, such as their size, before performing certain operations. clientWidth properties are used. open. You’ll learn how to resize individual images and multiple images in bulk. May 14, 2023 · Learn how to get the image size (width and height) in Python using OpenCV and Pillow (PIL) libraries. See the difference in the order of dimensions and the syntax for color and grayscale images. size # 计算像素面积 pixels = width * height print(f"图片像素面积为 {pixels} 像素") ``` 请注意，这个方法只能计算像素的数量，而不是实际面积。 Feb 28, 2023 · はじめに 画像の縦横サイズを取得する方法について解説します。PythonのOpenCVでは画像はNumPyのndarray配列のデータ形式になっています。このため画像の高さ，幅，チャンネル数はNumP Jan 15, 2017 · from io import BytesIO img_file = BytesIO() # quality='keep' is a Pillow setting that maintains the quantization of the image. imread('image. Oct 23, 2012 · Use the function GetSize from the module cv with your image as parameter. jpg') # 获取图像尺寸 height, width, channels = image. clientHeight: We can access the inner height of an element with this property. These methods allow us to extract the width and height of an image file, which can be useful for various image processing tasks. Jun 24, 2020 · 文章目录1、安装PIL（pip install Pillow）2、使用python查看图片大小2. open says:. There are several ways to resize images in Python . Image. shape # 打印图像尺寸 print("图像的宽度：", width) print("图像的高度：", height) Pythonで画像処理カテゴリの投稿. size – Image size. jpg') # 获取图片像素尺寸 width, height = img. ここでは、以下の内容について説明する。 mode – Image mode. Note that according to the Arrow spec, both the producer and the consumer should consider the exported array to be immutable, as unsynchronized updates will potentially cause inconsistent data. I use numpy. This must match the storage of the arrow object. Looking at the docs of PIL 1. Save or display the image as needed. Python (Pillow)でグラデーション画像を作る; PythonでGIFアニメを作る（PILでファイルをつなげる編） PythonでOpenCVの画像データをMatplotlibで表示する; PythonでPDFを画像に変換する（Windows10） PythonでPSDファイルをJPEGやPNGに変換する Jan 7, 2024 · Resize the image using the resize() method, specifying the desired size. 2. tell() As the comments allude, PIL does not load the image into memory when calling . resize() - Pillow (PIL Fork) 10. 2 使用os模块查看本地文件的大小（包括但不限图片） 1、安装PIL（pip install Pillow） 图片是我第一次安装命令错误，后来才发现是 pip install Pillow 但是导入模块使用是PIL： from PIL impo 总结. Perfect for beginners in image processing. 7, the docstring for . May 22, 2024 · Retrieving image size without loading the entire image into memory is a valuable technique in Python 3, made possible by the Pillow library. size () to do the same: Jan 3, 2023 · To get the size of an image (height and width), Element. save(img_file, "png", quality = "keep") image_file_size = img_file. Learn how to use size property of Image object to get the width and height of an image using Python Pillow library. 1. By the end of this tutorial, you’ll have learned: pip install opencv-python. Returns: An Image object. Obtaining image size in Python 3 without external libraries is possible using built-in modules such as Pillow, imghdr, and struct. 安装完成后，就可以开始使用OpenCV库来获取图像的尺寸了。下面是一个示例代码： import cv2 # 读取图像 image = cv2. open('image. image. def open(fp, mode="r"): "Open an image file, without loading the raster data" Apr 8, 2022 · In this tutorial, you’ll learn how to resize an image in Python using the Pillow library. 1 爬取图片的响应字节，查看图片大小（个人项目需求）2. You’ll also learn how to specify a percentage to scale by, a maximum width, and a maximum height. 以下是一个示例代码： ```python from PIL import Image # 打开图片文件 img = Image. Traditionally, loading the entire image into memory was the common approach to obtain this information. clientHeight and Element. Maybe it was removed a while ago? It looks like this function has been depreciated. Element. wvadnu mqxre oihnksam krp vnuhd iktjlc kigmh ween pucytp vil kbfbnhqp owfq gjey sitlv cddhzo