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How to achieve mosaic and blur effects of images in Vue?
Mosaic and blur effects are common image processing methods. They can make images more artistic and have special effects. It is relatively simple to implement these effects in Vue. We can use the HTML5 canvas element and some third-party libraries to achieve it. This article will introduce the implementation method from two aspects: mosaic and blur, and attach corresponding code examples.
1. To achieve the mosaic effect of images
npm install pixi.js --save
import * as PIXI from 'pixi.js'
<template> <div> <canvas ref="canvas"></canvas> </div> </template>
mounted
hook function of the Vue component, use pixi.js to create a canvas object, And load the image: mounted() { const canvas = this.$refs.canvas; const app = new PIXI.Application({ view: canvas, width: 500, height: 500, transparent: true, }); PIXI.Loader.shared.add('image', 'path/to/your/image.jpg').load((loader, resources) => { const sprite = new PIXI.Sprite(resources.image.texture); sprite.width = app.view.width; sprite.height = app.view.height; const filter = new PIXI.filters.PixelateFilter(); sprite.filters = [filter]; app.stage.addChild(sprite); app.ticker.add(() => app.render()); }); }
In the above code, a PIXI.Application
object is first created and the canvas element is passed in. Then, use PIXI.Loader
to load image resources, and use PIXI.Sprite
to create a sprite object and set it to full screen display. Next, a PIXI.filters.PixelateFilter
object is created and applied to the sprite object to achieve a mosaic effect. Finally, add the sprite object to the stage and listen to the rendering event through the app.ticker.add
method so that the canvas can be dynamically updated.
2. To achieve the blur effect of images
npm install blur.js --save
import Blur from 'blur.js'
<template> <div> <img ref="image" src="path/to/your/image.jpg" alt="image"> </div> </template>
mounted
hook function of the Vue component, use blur.js to add blur to the picture element Effect: mounted() { const image = this.$refs.image; const blur = new Blur({ image, radius: 10, }); blur.init(); }
In the above code, the reference to the image element is first obtained. Then, a Blur
object is created and the image element and blur radius are passed in. By calling the blur.init
method, you can add a blur effect to the image element.
Summary:
This article introduces the methods of achieving image mosaic and blur effects in Vue, and gives corresponding code examples. By using the third-party libraries pixi.js and blur.js, we can easily achieve these effects. Hope this article is helpful to you!
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