This library supports many file formats, and provides powerful image processing and graphics capabilities. Image Segmentation with Python and SimpleITK Posted on October 19, 2014 by somada141 In this post I will demonstrate SimpleITK, an abstraction layer over the ITK library, to segment/label the white and gray matter from an MRI dataset. class: center, middle # Docker for Python Developers [Fitter](https://www. The use case is user creates an image in the c++ application and then retrieve the image (preferably from memory so that we do not need to copy back and forth) and do some image process in python (using python image processing library such as PIL, opencv etc). Or drag files to the drop area. 5 = random). Jump into filtering. The difference in size is a matter of final image quality. Later, I deleted /tmp/ in the container which was 10GB and tried to commit a image, but still the image is 14GB. Size without the size of the elements: 88 Size of all the elements: 84 Total size of list, including elements: 172 The size of a Python list consists of the general list information, the size needed for the references to the elements and the size of all the elements of the list. If you aren't satisfied with the results, you can undo the changes. python webgobbler. Now, the resolution is expressed in dpi (or ppi), which is the acronym for dots (or pixels) per inch. For example, images for printing and presenting should be larger than images for a posting on a website. Popularity may not seem a useful metric with which to measure value. # Importing NumPy,which is the fundamental package for scientific computing with #Python # Reading Image reduce the complexity the size of font on the image. Once resized to 300x167, we flatten the images using the flatten_image function, so each is represented as a row in a 2D array. Measuring the size of objects in an image is similar to computing the distance from our camera to an object — in both cases, we need to define a ratio that measures the number of pixels per a given metric. Finding if two images are equal with Opencv, is a quite simple operation. Size without the size of the elements: 88 Size of all the elements: 84 Total size of list, including elements: 172 The size of a Python list consists of the general list information, the size needed for the references to the elements and the size of all the elements of the list. Autoencoders for Image Reconstruction in Python and Keras. can also be generated using the following Python code. If you are going to put your image on a webpage or email it to a friend then you will want to first make it a useful size. io by python-xy. If image is grayscale, tuple. size, 'red') newDiff = ImageChops. Arrays in Python is an altogether different thing. Developers and analysts can use Jupyter-based EMR Notebooks for iterative development, collaboration, and access to data stored across AWS data products such as Amazon S3, Amazon DynamoDB, and Amazon Redshift to reduce time to insight and quickly operationalize analytics. A typical profiling session with python 2. No more, no less. com/library/pil/handbook/introduction. The following are code examples for showing how to use pytesseract. To summarize the code, the options allow us to: negate the image (already discussed above), lighten the pixels, reduce the red in the image, turn the picture into gray scale, and blend the image with white. Sometimes, apart from bug analysis, one may want to capture screenshots to see the flow of test steps. Image Optimizer. Image noise may be caused by different sources ( from sensor or from environment) which are often not possible to avoid in practical situations. resize_thumbnail resize image while keeping the ratio trying its best to match the specified size. The background-size property specifies the size of the background images. You can vote up the examples you like or vote down the ones you don't like. Learn how to process images using the Pillow Python library. The Docker images extend Ubuntu 16. pyd (Typically, python22. Image size alteration We reduce the size of a large image file (1. No more, no less. Resizing, by default, does only change the width and height of the image. How to close a file Using Python? When we are done with operations to the file, we need to properly close the file. Then conver the actual image to grayscale. Make sure that the Gallery folder has enough permissions: On Windows NT/2000/XP you should grant the modify permission to the internet guest user ( IUSR_ ). Word Count Program using R, Spark, Map-reduce, Pig, Hive, Python Published on July 18, 2015 July 18, 2015 • 37 Likes • 4 Comments. Applying a median blur can help reduce salt and pepper noise, again making it easier for Tesseract to correctly OCR the image. This post will give you 5 tips to help reduce your Docker images size and why focusing on it is important. jpg because the default is. Learn about Python text classification with Keras. Python Tutorial: map, filter, and reduce. A Water-body has less randomness when compared with its surroundings so it is possible to extract the water-body area by segmenting the image based on the difference in the pixel colors. Hey, I wrote a quick and simple python-script, that clones a small lego-brick to a grid and add a vertex color based on an image pixelcolor. But using QGIS I don't know how to do this. Before getting started, let’s install OpenCV. But what if they’re not equal?The subtraction method doesn’t work anymore, as we can’t subtract pixels from images that have different sizes, we would. However, when you build applications with XML-RPC as the connecting glue, all of a sudden you're not locked in. Image manipulation You can modify the pixels and pixel channels (r,g,b) directly. VideoCapture(-1) cam. Later, I deleted /tmp/ in the container which was 10GB and tried to commit a image, but still the image is 14GB. Then click on the ‘Edit…’ option and select ‘Reduce’. The following article will help you to resizing the images in python using OpenCV. Taking pictures at different file sizes will make more sense as you continue to read about image resolution and print sizes. If python wget module has not been. We have the original image of size (275, 183) and a scaled image of dimension (138, 92). ) into editable document formats Word, XML, searchable PDF, etc. How to change size of Matplotlib plot Ashwin Uncategorized 2014-10-27 2015-11-24 1 Minute Sometimes you may want to change the width or height or both of the plot figure generated by Matplotlib. Python Forums on Bytes. Another GitHub find is this script, created by Victor Domingos, which is written in pure Python and is used to reduce the file size of images. This time we are loading an image and rotate it counterclockwise by a specified number of degrees. Or in other way we can say that this image has 256 different shades of gray. But the image gets distorted because the height-to-width ratio is not taken … - Selection from Python 2. How do I reduce the file size of documents that the PDF-XChange family of products create? Answer: There are several options that reduce the size of created files in all of our products. Although the gigabyte price is decreasing, keeping your Docker images light will bring some benefits. Consider then, that in 2017 more people searched for Python than Kim Kardashian in America. Ok, having cleared that, getting the the size of a list or tuple (or array, if you will), is pretty straighforward. Virtual machine provisioning engine and image storage Authentication and authorization mechanisms Integrated networking Web browser-based interface accessible to users and administrators Note For reference information about the components mentioned in this guide, see Chapter 5, Deployment Information. Background images can also respond to resizing and scaling. The final size of your image depends on the resolution that you choose. Repeat this for 5×5 blocks and 7×7 blocks. In view of this, one needs a ‘rule of thumb’ to indicate how g. Python to the people — Pyzo - Python to the people. Here is sample program to reduce file size of an image. GIMP is a cross-platform image editor available for GNU/Linux, OS X, Windows and more operating systems. Not too big, not too small. Output of the program while using. Now, if you need to attain a certain size whatever the consequences (inc. Start with a large gray-scale image and reduce the image size 16 times, by reducing both height and width by 4 times. python-resize-image takes as first argument a PIL. Definition and Usage. For example, if you wanted to compute the product of a list of integers. python image compression python-imaging-library |. If you don't specify a size (by using None), then it expects the X and Y scaling factors. If your image resolution is more than 2. Open a terminal and run pip show wget to check whether python wget module has been installed or not. To resize an image, OpenCV provides cv2. Original image (left) with Different Amounts of Variance Retained. Setting the Right Batch Interval For a Spark Streaming application running on a cluster to be stable, the system should be able to process data as fast as it is being received. They have announced Now 2. size returns a standard arbitrary precision Python integer. Luckily for you, there's an actively-developed fork of PIL called Pillow - it's easier to install, runs on all major operating systems, and supports Python 3. This will reduce the file size down to about 727KB (EPS) which is still much larger than the version in the above example which used the JPEG compression. image_to_string(). python-resize-image takes as first argument a PIL. You can vote up the examples you like or vote down the ones you don't like. It uses the AdvanceMAME Scale2X algorithm which does a 'jaggie-less' scale of bitmap graphics. Learn more about how to make Python better for everyone. Python Weekly statistics (using urllib2, HTMLParser and pickle) Solution: Number guessing game in Python; Show Emoji in Python code; for-else in Python indicating "value not found" Create your own interactive shell with cmd in Python; Create images with Python PIL and Pillow and write text on them; Python: get size of image using PIL or Pillow. png in Windows and linking to the smaller version. Every uploaded image is analyzed to apply the best possible JPEG encoding. Wrapping Up. clearImageCache(). Yes, reducing pixels can lead to reduction in file size in terms of KBs however it will not be significant. I have a raster with rivers (roughly drawn) and a DEM raster. It applies a rolling computation to sequential pairs of values in a list. There are four different syntaxes you can use with this property: the keyword syntax ("auto", "cover" and "contain"), the one-value syntax (sets the width of the image (height becomes "auto"), the two-value syntax (first value: width of the image, second value: height), and the multiple background. In fact, to avoid sampling artifacts, the mapping is done in the reverse order, from destination to the source. Here I will show how to implement OpenCV functions and apply it in various aspects using some examples. This concept will sound familiar if you are a fan of HBO's Silicon Valley. 3 (trunk will become 2. 89 Responses to Basic Image Manipulations in Python and OpenCV: Resizing (scaling), Rotating, and Cropping Rish_S November 13, 2014 at 5:39 pm # I believe numpy. Although the gigabyte price is decreasing, keeping your Docker images light will bring some benefits. It provides a set of visual features that can be tracked using real time image processing or computer vision algorithms. The difference between the simulated output image and a perfect, noise-free image is measured using a spatial extension of the CIELAB color metric, S-CIELAB. Pillow is the friendly PIL fork and an easy to use library developed by Alex Clark and other contributors. Wouldn't it make sense to just include the pre-built binaries, and not including all of the make utilities? I know it would drastically reduce the size of the image. Using the Python Image Library (PIL) you can resize an image. Measuring the size of objects in an image with OpenCV. Animated images also have their own internal cache, storing each version of the image. Python floor np array wikizieco numpy tutorial final 20170303 two dimensional array slicing 52 Numpy Floor Python Integer Review Home Decor -> Source. Basic Image Handling and Processing This chapter is an introduction to handling and processing images. I am trying to run a batch file everyday to reduce a multiple image file size from image folder everyday. JavaToWritableConverter. Parameters image ndarray. Image compression is done to reduce the cost of storage and transmission Steps. Image resizer. resize and get hands-on with examples provided for most of the scenarios encountered in regular usage. (4 replies) I have a batch file that exports ArcGIS pdf maps to a directory. reducing resolution of an image. I would like to include a step in the script where the pdf file is reduced in size instead of manually opening. Image Optimizer. How do I make all pictures equal size? Now I'm using python to do some image registration,but I found there is no useful tool for me. You will learn to detect object shapes using edge detection filters, improve medical images with contrast enhancement and even enlarge pictures to five times its original size! You will also apply morphology to make thresholding more accurate when segmenting images and go to the next level of processing images with Python. Image Segmentation with Python and SimpleITK Posted on October 19, 2014 by somada141 In this post I will demonstrate SimpleITK, an abstraction layer over the ITK library, to segment/label the white and gray matter from an MRI dataset. Scaling comes handy in many image processing as well as machine learning applications. Parameters image ndarray. Python Is Popular. 128-dimensional. In Python 2. Python Scientific Modules. The new Killer Python now weighs 24g, providing 336kJ per portion, compared to the 630kJ of the original 47g size. Or you can install it manually via pip:. Consider using a smaller base image. resize() function of OpenCV library cv2. Or, you can specify the pip_requirements_file or conda_dependencies_file parameter. Part 6 covers the theory behind image recognition with ML : A crash course on image recognition with machine learning. If the image dimensions are larger than img-max-size, pptx-downsizer will reduce the image dimensions (by an interger factor) so that the image is smaller than img-max-size. Output Image Quality. Image ROI¶ Sometimes, you will have to play with certain region of images. Contribute to Python Bug Tracker. Resizing does only change the width and height of the image. The image is shown rotated and then saved to the working folder. Normally, we used to work with an image of constant size. The reduction in file size. Here is a method that returns the image dimensions: from PIL import Image import os def get_image_dimensions(imagefile): """ Helper function that returns the image dimentions :param: imagefile str (path to image) :return dict (of the form: {width:, height=, size_bytes=) """ # Inline import for PIL because it is not a common library with Image. Compression changes are made when you close this dialog box. Make sure each are the same size and resize them so they aren’t large images! Remember that PCA will reduce the image’s dimensionality when we project onto that space anyways so using large, high-definition images won’t help and will slow down our algorithm. urlretrieve() - Python Web Crawler Tutorial; Python Compress Image without Width and Height Reduce - Python. Every uploaded image is analyzed to apply the best possible JPEG encoding. That is, I want to be able to press a set of keys in a game and a GUI screen with some options (possibly a shell script) that doesn't cover up the game should come up without the need to alt+tab. I would like to include a step in the script where the pdf file is reduced in size instead of manually opening each file in Acrobat X Pro after the script has run and doing it there. Amazon S3 is a great place to store images because it is very cheap, reliable, and has a robust API (in python accessible via boto). You can also reduce the size of the file (not necessarily the size of the image) so it loads faster. Please note resize does not mean compressing image. Some are similar to capabilities in other programming languages, but many are unique to Python. Tang, "Learning a Deep Convolutional Network for. It does this by creating an image out of each page, enhancing the image and then collating the images in a device-specific format. Thanks in advance. shape to get the dimension. A Water-body has less randomness when compared with its surroundings so it is possible to extract the water-body area by segmenting the image based on the difference in the pixel colors. The is how many tick marks are on the outside of the ring (beware of high numbers). Rendering such an image on a white background will result in this: Solid color images and rectangles aren’t very interesting. In this article, we walked you through setting up a dynamic image resizing API with Python and the Serverless framework. This article is designed to be a tutorial for those…. @SQK, I used your above code to get the image into an array and when I try to print the array, it prints a multidimensional array like below for one of the image that I am trying to get into array. Ok, having cleared that, getting the the size of a list or tuple (or array, if you will), is pretty straighforward. The Dial outputs a HAL float and reacts to both mouse wheel and dragging. On photographic and antialiased images it will look like a regular unfiltered scale. In this tutorial I look at how to create and initialise a fixed size Python list. These changes may reduce batch processing time by 100s of milliseconds, thus allowing sub-second batch size to be viable. This example shows how to automatically reduce PNG and JPEG image sizes without loss of quality using the Python Imaging Library (PIL). jpeg images from you device. I created the script to resize thousands images in a single-run Python command in Linux (Ubuntu). However, sometimes people will ask me how to reduce PDF file size, so it's clearly a topic of interest. Optical measurements for capturing optical features that show the physical and chemical properties of target objects and scenes fall under the nondestructive measurement method. Resizing does only change the width and height of the image. However for thumbnails of JPEG images, you can limit the size of the image read in from disk using the special option "-define jpeg:size={size}" setting. Nestlé Australia’s Allen’s brand has halved the size of a popular Australian children’s sweet – the snake-shaped Killer Python - to reduce the sugar and calorie intake of the treat. I haven't been able to find a clear solution online. How to change size of Matplotlib plot Ashwin Uncategorized 2014-10-27 2015-11-24 1 Minute Sometimes you may want to change the width or height or both of the plot figure generated by Matplotlib. python process. I am wondering if it can be made faster, or if there are alternatives that would be. The Docker images extend Ubuntu 16. They can eliminate noise and clarify the intention of callers. It was developed by Fredrik Lundh and several other contributors. The above code will covert tif files to a jpg file with the same or reduced (change quality number less then 100 to reduce the quality) quality (file size), but the resulted image will keep the same size (the height and width of the image). Once the new Surface is created you can destroy the string buffer. If image is grayscale, tuple. ) Note that since version 0. It means that the output image will be of the same size as the input image. Haynes FRPS. For example, while searching for something in an image, like face, we are not sure at what size the object will be present in the image. Image Operations - OpenCV with Python for Image and Video Analysis 4. I high level and very convenient, based in pickle serialization I can be slow for large data (CPU and memory consuming). We are a Top 10 Banking Analytics Provider of 2017. In particular, the submodule scipy. Let us imagine you are trying to compare two image segmentation algorithms based on human-segmented images. I have run this file for two inputs,one is image and another is empty file. The Dial outputs a HAL float and reacts to both mouse wheel and dragging. After you install and run this video reducer, click the Add Files button to browse and select the MP4 files which you want to reduce the size. Finally we grab the new siz, print it out and then show the image before saving the resized photo. ) by extracting text and barcode information. new('RGB', diff_Image. This tutorial uses python to build the image-processing pipeline. clearImageCache(). Compression changes are made when you close this dialog box. Python Tutorial In association with Lab #2 of Phys 322, Observational Astronomy Start Python: To start Python, click on the Jupyter QTConsole icon in your Anaconda Python start menu. In this course, you will learn to process, transform, and manipulate images at your will, even when they come in thousands. ) by extracting text and barcode information. It was developed by Fredrik Lundh and several other contributors. We can access height, width and number of channels from img. We'll be building a neural network-based image classifier using Python, Keras, and Tensorflow. Wrapping Up. This tinify supports various file formats like PNG and JPG. My last tutorial went over Logistic Regression using Python. Whether you’re a beginner or a Python veteran, here are several reasons why Python is the programming language of the future. Now I am going to take the CSV of values and turn them back into an image. In this tutorial, you will learn how you can process images in Python using the OpenCV library. downscale float, optional. Contain of text. In our case, most images will be uploaded to our website. The list is not who is best or worst but a an overview of the usage by the community and image size. Image scaling can be interpreted as a form of image resampling or image reconstruction from the view of the Nyquist sampling theorem. For this it's difficult to beat the compare suite of ImageMagick. Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, PHP, Python, Bootstrap, Java and XML. Resizing an image can be done in many. Tang, "Learning a Deep Convolutional Network for. In this program, we find the resolution of a jpeg image reading these headers, without using any external library. For images viewed on computer screens, scan resolution merely determines image size. Original image (left) with Different Amounts of Variance Retained. Python / PIL template matching Use grey level images, only one band, to reduce computation if you don't do color Create a Mask image the size of the template with. Image and then size argument which can be a single integer or tuple of two integers. Wouldn't it make sense to just include the pre-built binaries, and not including all of the make utilities? I know it would drastically reduce the size of the image. Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Join the two corner arrays together (the transformed image 1 corners, and the image 2 corners) into one array of size (8, 1, 2). Use the HTML alt attribute to define an alternate text for an image, if it cannot be displayed; Use the HTML width and height attributes to define the size of the image; Use the CSS width and height properties to define the size of the image (alternatively) Use the CSS float property to let the image float; Use the HTML element to define. When working with imaged raster data, there are four types of resolution you may be concerned with: spatial resolution, spectral resolution, temporal resolution, and radiometric resolution. I high level and very convenient, based in pickle serialization I can be slow for large data (CPU and memory consuming). 11n dual-band, multi-port serial device server, offering both WiFi and Ethernet connectivity – enabling remote access and easy management of devices or equipment over the network and across the Internet. Is it possible to change a picture resolution with Python? Let's say I have a picture with a resolution of 96 dpi and I would like to increase to 256dpi or higher. This function performs principal components analysis (PCA) on the n-by-p data matrix and uses all the p principal component to computed the principal component scores. An expert Python developer demonstrates how you can use Python to create better images while designing your web site or application, Enhancing Photos With Python you will reduce contrast. Image Credit: Stack Overflow. degrading images to a point of unreadability), it might not be the tool you need, but as an always-working go-to solution, to reduce unnecessary big sizes in PDFs without loosing in readability, information and acceptable image quality, I think it is the best option. How to classify. Resizing an image can be done in many. thumbnail(size), I get a resized version of the image that maintains the aspect ratio, however, the image may be cropped (Aspect Fill technique), however I need to do the Aspect Fit technique, where the im. Apache Spark is a unified analytics engine for big data processing, with built-in modules for streaming, SQL, machine learning and graph processing. This is a Python script that optimizes. Optimizing Docker Images for Image Size and Build Time In this blog post, I'll discuss layers in context of image size and build time because I've seen a couple failed attempts to optimize for. Next we open our image and print out its size. Select up to 20. How to use Python 3 Pillow on Raspbian Stretch Lite to compress your jpeg image When you are building a Raspberry Pi camera project, you may want to compress the images captured from the camera to reduce the time to upload your image to a server endpoint. The most rudimentary way (which works on Windows XP too btw) is: 1. This wikiHow teaches you how to change the number of kilobytes (KB) that an image uses. However, instead of handwritten digits, this dataset contains images of clothes. OpenCV is a free open source library used in real-time image processing. Up to 90% file size reduction. But is it worth it?. Generate QR code image with Python, Pillow, qrcode; Create and save animated GIF with Python, Pillow; Get image size (width, height) with Python, OpenCV, Pillow (PIL) Add margins to the image with Python, Pillow like enlarging the canvas; Create transparent png image with Python, Pillow (putalpha) Alpha blending and masking of images with. Welcome to part eleven of the Deep Learning with Neural Networks and TensorFlow tutorials. Write a Python program to get the file size of a plain file. If you want the window to be a fixed size, I just set the minimum and maximum as the same. If you’re building a Docker image, it’s natural to go read Docker’s official documentation’s best practices for Dockerfiles on docs. It did however make the 2160p size one-third. Some of the operations covered by this tutorial may be useful for other kinds of multidimensional array processing than image processing. In this tutorial, we shall the syntax of cv2. That is, the image has 3 channels and each channel has 5 rows and 6 columns. So, the smaller the better. com/watch?v=hs64rB0cLNw). "Resolution" is a too much overloaded word, from some point of view increasing the resolution of images is a very difficult thing, that may need deblurring, etc. Python floor np array wikizieco numpy tutorial final 20170303 two dimensional array slicing 52 Numpy Floor Python Integer Review Home Decor -> Source. I choose 300x167 because most of the images were roughly that size or slightly larger to begin with. For the first column of this array, find the min and max. To install additional dependencies, you can either use the pip_packages or conda_packages parameter. This section addresses basic image manipulation and processing using the core scientific modules NumPy and SciPy. I have around 2000 images that I want to reduce a file size because of server disk space. Python [PIL Image] 08 Image Size - Duration: Python Tips - map, reduce, filter, somedude2011 21,318 views. Python had been killed by the god Apollo at Delphi. Image manipulation You can modify the pixels and pixel channels (r,g,b) directly. Using Imagify Wordpress Plugin to Reduce size of Images I would, personally, recommend using Imagify as the wordpress plugin, because the images uploaded to wordpress will be automatically compressed, which saves you lots of hassle (uploading, downloading and re-uploading). Image size and photo manipulation for editors. It also resizes the image to the given size of (416, 416) without cropping. Image Operations - OpenCV with Python for Image and Video Analysis 4. Consider then, that in 2017 more people searched for Python than Kim Kardashian in America. size returns a standard arbitrary precision Python integer. Resizing, by default, does only change the width and height of the image. If the size of the output image is not an integer, then imresize does not use the scale specified. Here's some tips that can help reduce their sizes. , the product of the array’s dimensions. You can vote up the examples you like or vote down the ones you don't like. org (the website) welcomes all Python game, art, music, sound, video and multimedia projects. Correct (or best) Answer. Resizing, by default, does only change the width and height of the image. In this tutorial, you will use a pre-trained Haar Cascade from OpenCV to detect and extract faces from an image. The init function of extension modules is not called a second time. The result is a quality image without wasting storage or bandwidth!. Please note resize does not mean compressing image. This makes them pretty useful for transferring files over the internet. To determine the optimal pixel size, we decide on a sensor area and create a set of simulated images corresponding to a range of pixel sizes. So the normal way you might go about doing this task in python is using a basic. ) python webgobbler. Create Negative or Invert Image using OpenCV Python This post will be helpful in learning OpenCV using Python programming. Consider using a smaller base image. Second and third arguments are our minVal and maxVal respectively. Write code in your web browser, see it visualized step by step, and get live help from volunteers. python process. The following article will help you to resizing the images in python using OpenCV. This will also work in Windows i guess. scikit-image is an image processing library that implements algorithms and utilities for use in research, education and industry applications. You are able to change the resolution of the original video file to a smaller resolution. If you want to reduce the filesize by a factor of 10 to 20, the easiest way is to reduce the amount of pixels. Here we will show three different methods: 1. Double left click to increase the resolution and double right click to reduce the resolution by one digit. Python has a garbage collector to clean up unreferenced objects but, we must not rely on it to close the file. Here is an example to understand it in a better manner. Let’s add the following line to the python file: net. If a 4-tuple is given, the size of the pasted " " image must match the size of the from functools import reduce def image python 爱好者交流群. urlretrieve() - Python Web Crawler Tutorial; Python Compress Image without Width and Height Reduce - Python. This is the image, check it out: To load an image from file, there is a simple call to pygame. In particular, the submodule scipy. Is it possible to change a picture resolution with Python? Let's say I have a picture with a resolution of 96 dpi and I would like to increase to 256dpi or higher. 04, I cannot seem to change the width or height of the capture from either camera. OpenCV is a mature, stable library for 2D image processing, used in a wide variety of applications.