How To Resize An Image In An HTML 5 Canvas ? - GeeksforGeeks

Skip to content geeksforgeeks
  • Courses
    • DSA Courses
    • Programming Languages
  • Tutorials
    • Python Tutorial
      • Python Data Types
      • Python Loops and Control Flow
      • Python Data Structures
      • Python Exercises
    • Java
      • Java Programming Language
        • OOPs Concepts
      • Java Collections
      • Java Programs
      • Java Interview Questions
      • Java Quiz
      • Advance Java
    • Programming Languages
    • System Design
      • System Design Tutorial
    • Interview Corner
    • Computer Science Subjects
    • DevOps
    • Linux
    • Software Testing
    • Databases
    • Android
    • Excel
    • Mathematics
  • DSA
    • Data Structures
      • Linked List
      • Tree
    • Algorithms
      • Analysis of Algorithms
      • Searching Algorithms
      • Sorting Algorithms
    • Practice
      • Company Wise Coding Practice
      • Practice Problems Difficulty Wise
      • Language Wise Coding Practice
      • Curated DSA Lists
    • Company Wise SDE Sheets
    • DSA Cheat Sheets
    • Puzzles
  • Data Science
    • Data Science Packages
    • Data Visualization
    • Data Analysis
  • Web Tech
    • Web Development Using Python
      • Django
      • Flask
    • Cheat Sheets
  • HTML Tutorial
  • HTML Exercises
  • HTML Tags
  • HTML Attributes
  • Global Attributes
  • Event Attributes
  • HTML Interview Questions
  • HTML DOM
  • DOM Audio/Video
  • HTML 5
  • HTML Examples
  • Color Picker
  • A to Z Guide
  • HTML Formatter
Open In App How to resize an image in an HTML 5 canvas ? Last Updated : 27 Aug, 2019 Summarize Comments Improve Suggest changes Like Article Like Save Share Report Follow

The canvas element is part of HTML 5 and it allows the rendering of 2D shapes and bitmap(also called “raster”) images. A canvas actually has two sizes:

  • the size of the element.
  • the size of the element’s drawing surface.

The element’s width and height attributes set both the size of the element and the size of the element’s drawing surface. CSS attributes affect only the element’s size and not the drawing surface.

Example:

<!DOCTYPE html> <html> <body> <p>Image:</p> <img id="forest" width="220" height="277" src= "https://media.geeksforgeeks.org/wp-content/uploads/20190809013546/gfg_350X350.png" alt="Forest"> <p>Canvas:</p> <canvas id="Canvas" width="300" height="200" style="border:15px solid #000066;"> Your browser not support the HTML5 canvas . </canvas> <script> window.onload = function() { var canvas = document.getElementById("Canvas"); var context = canvas.getContext("2d"); var img = document.getElementById("forest"); context.drawImage(img, 12, 8); }; </script> </body> </html>

Output:

H

himanshushinde0410 Follow Improve Next Article How to Resize an Image in HTML?

Similar Reads

Chart.js Canvas Resize The Chart.js library provides responsive, interactive charts that automatically resize based on the size of their parent container. By default, charts created with Chart.js are responsive and will adjust their dimensions to fit the available space on the page. However, if you need to manually resize a chart, you can set the responsive property to t 3 min read How to Force Image Resize and Keep Aspect Ratio in HTML ? To resize an image in HTML while keeping its aspect ratio, you can use simple HTML or CSS techniques. The problem is to ensure that the image scales without distortion or cropping. This can be fixed by applying simple styles that resize the image while keeping its original proportions. Below are the various methods to force image resize and keep th 2 min read How to Resize an Image in HTML? Images are a vital part of any webpage, enhancing the visual appeal and improving user engagement. However, displaying images at the correct size is essential for a professional look and optimal page performance. Resizing an image in HTML ensures that it fits within your webpage's design while maintaining fast loading times. This article will explo 2 min read How to Converte Chart.js Canvas Chart to Image using .toDataUrl() Results in Blank Image? In Chart.js, we can convert the canvas chart into an image using the .toDataURL() method, which generates a base64-encoded data URL representing the chart. This allows us to save or display the chart as an image. These are the following approaches: Table of Content Basic Conversion to ImageAdvanced Conversion with Custom Image StylingChartJS CDN Li 4 min read How to resize list style image in CSS ? In this article, we will learn to set an image or icon as the <li> image. We need to set the size of the custom list image to make it attractive. So, we will also learn the different ways to resize the custom list image. Syntax: In this article, we will use below CSS properties. background-image: We will add a custom image as a background ima 3 min read p5.js Image resize() Method The resize() method of p5.Image in p5.js is used to resize the image to the given width and height. The image can be scaled proportionally by using 0 as one of the values of the width and height. Syntax: resize( width, height ) Parameters: This function accepts two parameters as mentioned above and described below. width: It is a number that specif 2 min read How to Resize a SVG image ? Resizing an SVG image cannot be done by simply using CSS height and width property to the img tag. To resize the SVG image, follow these steps: Method1: The SVG image will be taking 100% of all the width and height available to it. To make the image of the desired size set the CSS height and width property of the image Example 1: C/C++ Code <!DO 1 min read Create Image Resize App using Tailwind CSS Image Resizer is an application that is used to resize an uploaded image by providing new dimensions in the form of width and height. This application contains two numbered input fields to get the number input for width and height from the user. It also contains a file input field to upload an image file. It allows you to download the resized image 3 min read Create an Image Resize and Editor using React-Native Image manipulation in mobile apps is an important functionality, from cropping and resizing to adding filters or overlays. In this tutorial, you will learn the process of building a simple Image Resize and Editor application using React-Native. This project aims to provide a foundation to integrate image editing capabilities into their React-Native 3 min read How to Auto Resize Image in CSS FlexBox Layout and Keeping Aspect Ratio? In modern web design, responsive images are crucial to ensure that your site looks good on all devices. CSS Flexbox provides a powerful layout mode that allows you to create flexible and responsive layouts. We'll explore how to auto-resize images within a CSS Flexbox layout while maintaining their aspect ratio. ApproachDefine a div container with a 2 min read How To Resize Image in GitHub Using Markdown? Markdown is a popular markup language that simplifies formatting text, commonly used in README files, wikis, and documentation across various platforms like GitHub. It provides a simple way to embed images but doesn't include built-in options to resize them directly. In this article, we will see the different methods to resize Images in GitHub usin 3 min read How to Auto-Resize an Image to Fit a Div Container using CSS? To resize an image or video to fit inside a div container, you can use the object-fit property. This property is used to specify how the content should fit inside the container. With object-fit, you can set the content to maintain its aspect ratio or stretch to fill the entire container. This allows you to control how the content is displayed withi 3 min read Resize image proportionally with CSS To resize an image proportionally with CSS, you can use the max-width property to ensure the image adjusts automatically to fit its container without stretching. The height: auto rule maintains the image’s aspect ratio, preventing distortion. Following are how we can resize the image proportionally using CSS: Table of Content Resizing with max-widt 2 min read How to save an HTML 5 Canvas as an image on the server ? Saving HTML canvas as an image is pretty easy, it can be done by just right-clicking on the canvas and save it as an image. But saving canvas as an image on the server is quite different. This article will show you how to achieve that. Sometimes it is required to save canvas image after doing some server processing and this article will help in sen 3 min read HTML | DOM Style resize Property The Style resize property in HTML DOM is used to specify whether an element is resizable in height and width by the user. Syntax: It returns the resize property:object.style.resizeIt is used to set the resize property:object.style.resize = "both|horizontal|vertical|none|initial| inherit" Property Values: 1. both: This value enables the user to chan 5 min read How to disable the resize grabber of <textarea> in HTML ? You can use the resize property to specify whether a text area should be resizable or not. The <textarea> is an HTML tag used to create a multi-line input field. By default, <textarea> includes a resize grabber in the bottom right corner which allows users to resize the input field by dragging the grabber with the mouse. Syntax:textarea 2 min read Create a Resize and Compress Images in HTML CSS & JavaScript While using the GeeksforGeeks Write Portal to write articles, we need to upload the images. As we need to resize the image as per GeeksforGeeks's requirement, we search for different tools and websites on the internet to resize and compress the image. But, as a web developer, we can create our own image resize and compressor using HTML, CSS, and Ja 7 min read How to convert canvas graphics to image ? In this article, we will learn how to convert the contents of the canvas to an image and download it to the download manager of the existing browser. The Canvas graphics is used to draw the graphics with the help of the <canvas> element on the web page. It can act as a graphics container. The different methods that are facilitated by the canv 3 min read How to create a canvas image using Fabric.js ? Creating a canvas image using Fabric.js is a powerful method for generating dynamic and interactive graphical content on the web. Fabric.js, a robust JavaScript library, simplifies the process of working with the HTML5 canvas element by providing a rich API for manipulating shapes, text, and images. With Fabric.js, developers can easily create, tra 2 min read How to Crop an Image Using Canvas? Cropping an image using an HTML5 canvas involves selecting a specific portion of an image and displaying only that part on the canvas. This technique is useful for focusing on a particular area of an image, removing unwanted sections, or fitting images into specific layouts without altering the original file. ApproachIn this approach, we will creat 2 min read How to Download Canvas as Image on Button Click in ChartJS? In Chart.js, the charts that are generated can be converted and downloaded as images for easy sharing and reporting. By using built-in methods like toBase64Image() and the HTML canvas toBlob() method, we can enable users to download charts in formats such as PNG. These techniques provide a simple way to capture the visual data from charts and offer 4 min read jQuery resize() method The jQuery resize() method is an inbuilt method that is used when the browser window changes its size, resize() method triggers an event when the size of an element is changed, allowing you to perform actions or apply styles based on the new dimensions. Syntax: $(selector).resize(function)Parameter: This method accepts a single parameter function w 2 min read CSS resize Property The resize property in CSS is used to resize the element according to user requirement. It does not apply to inline elements or to block elements where overflow is visible. Syntax: resize: none|both|horizontal|vertical|initial; Property value: none both horizontal vertical initial none: The user is not able to resize the element. It is a default va 4 min read How to Resize Rotation Radius using CSS ? In dynamic CSS, you can resize rotation radius using CSS Custom Properties (Variables). As custom properties are now in the latest browsers from Mozilla, Google, Opera, Apple, and Microsoft – it’s definitely a good time to explore and experiment. The pre-requisites to learn CSS Variables and CSS var() Function. Approach: First, defines a global cus 2 min read Node Jimp | resize The resize() function is an inbuilt function in Nodejs | Jimp which resizes the image to a set width and height using a 2-pass bilinear algorithm. Syntax: resize(w, h, mode, cb) Parameter: w: This parameter stores the width of the image.h: This parameter stores the height of the image.mode: This is an optional parameter that stores the scaling meth 2 min read Cross-browser window resize event using JavaScript/jQuery The resize() method is an inbuilt method in jQuery that is used when the browser window changes its size. The resize() method triggers the resize event or attaches a function to run when a resize event occurs. jQuery has a built-in method for window resizing events. Syntax: $(selector).resize(function) This syntax is used for cross-browser resize e 2 min read Node.js GM resize() Function The resize() function is an inbuilt function in the GraphicsMagick library which is used to resize an image. The function returns the true value of success. Syntax: raise( width, height ) Parameters: This function accepts two parameters as mentioned above and described below: width: This parameter is used to specify the width of the image.height: T 1 min read jQuery UI Dialog resize Event jQuery UI resize event is triggered when the dialog box is resized. Learn more about jQuery selectors and events here. Syntax: $(".selector").dialog ( resize: function( event, ui ) { console.log('resized') },Approach: First, add jQuery Mobile scripts needed for your project.<link href = "https://code.jquery.com/ui/1.10.4/themes/ui-lightness/jque 1 min read How to resize SVG icon using Tailwind CSS ? SVG stands for Scalable Vector Graphics and is an XML-based ( can be edited ) vector image format. SVG is commonly used for icons, animations, interactive charts, graphs, and other dynamic graphics in the browser. As it is XML-based, you can easily resize the SVG icon using Tailwind. Approach: You can simply customize the class of SVG by changing t 3 min read jQWidgets jqxWindow resize() Method Introduction: jQWidgets is a JavaScript framework for making web-based applications for PC and mobile devices. It is a very powerful, optimized, platform-independent, and widely supported framework. The jqxWindow is used for entering data or viewing information in an application. The resize() method is used to resize the current window. The 'resiza 2 min read Article Tags :
  • HTML
  • Web Technologies
  • HTML-Misc
Like three90RightbarBannerImg Explore More We use cookies to ensure you have the best browsing experience on our website. By using our site, you acknowledge that you have read and understood our Cookie Policy & Privacy Policy Got It ! Lightbox Improvement Suggest changes Suggest Changes Help us improve. Share your suggestions to enhance the article. Contribute your expertise and make a difference in the GeeksforGeeks portal. geeksforgeeks-suggest-icon Create Improvement Enhance the article with your expertise. Contribute to the GeeksforGeeks community and help create better learning resources for all. geeksforgeeks-improvement-icon Suggest Changes min 4 words, max CharLimit:2000

What kind of Experience do you want to share?

Interview Experiences Admission Experiences Career Journeys Work Experiences Campus Experiences Competitive Exam Experiences

Từ khóa » Html Canvas Stretch Image