privatebrazerzkidai.blogg.se - Python image resize

#Python image resize how to
#Python image resize install
#Python image resize full

We parse the arguments, set variables with defaults values for usage, and assign them.

The comments above are pretty self explanatory. # If an argument is missing exit the application. If width = -1 or height = -1 or directory = '': # We have to make sure that all of the arguments were passed. # If an argument was passed in, assign it to the correct variable. # Set some default values to the needed variables. Opts, args = getopt.getopt(sys.argv, 'd:w:h:') In this case, we’ll display an error message and terminate the program. We also have to take into account the slight chance that an argument is missing.

Next, let's go ahead and process the command line arguments. Our Batch Image Resizer Command Line Arguments

Image: Will allow us to invoke the resize function that will perform the heavy lifting of the application.

getopt: Lets us easily access command line arguments passed in by the end user.

OS: Lets us access functions that will interact with our computer, in this case, fetching files from a folder.

Python image_resizer.py -d 'PATHHERE' -w 448 -h 200įirst let’s import what we need in order for this script to work:

#Python image resize how to

Simple! Now we show you how to batch resize images with Python. Img = img.resize((baseWidth, height), Image.BILINEAR) Height = int((float(img.size) * float(widthPercent))) WidthPercent = (basewidth / float(img.size)) # Calculate the height using the same aspect ratio But what if we only know the width and need to calculate the height? When resizing an image with Python, we can calculate the height as follows: That assumes that we already know the width and height. Img.save(os.path.join(directory, 'resized-' + image)) Img = img.resize((width, height), Image.BILINEAR) Img = Image.open(os.path.join(directory, image)) To resize one image with Python's PIL, we can use the following command: Okay, onto the script to resize an image! Resizing an Image with Python

#Python image resize install

$ sudo apt-get install libjpeg libjpeg-dev libfreetype6 libfreetype6-dev zlib1g-dev To install PIL on Ubuntu, use the following command: Installing PIL on Linux tends to vary per distribution, so we'll only cover Ubuntu. With MacPorts, you can install PIL with the following command (for Python 2.7): You can download and install the PIL library here. This is using Python's PIL (Python Imaging Library). Point in case, today I will show you how to easily build a Python script that will resize an image with Python, and we will extend it to resize all images in a folder to the dimensions you choose.

#Python image resize full

The Python ecosystem is very alive and full of libraries. Python is a very powerful scripting language and you will be pleasantly surprised to find that a lot of the common functions you would want to build are available to If you want to do more with image editing, be sure to checkout our article on how to watermark an image in Python At the time of writing, it is only available for Python 2.x. The module we use in this recipe to resize an image with Python is PIL.