![]() ![]() ![]() I added 3 images on the slider (for each slide) – 1x, 2x and 0.5x. You can read more about this topic on the Google’s developers page. It knows the size of the container and it knows the available sizes to choose from. The browser therefore knows which image to load before even loading it. In this case (the top slider) the container is always 1440px wide with the resolution of 1460px (and more) and “full-width” (100vw) below that resolution. This tells the browser how big the image container will be with different resolutions. This tells the browser the actual size of the image and, based on this, it will decide which image to load.Īdditionally, we must also add the sizes attribute. However, what is required are the 2880w, 1440w and 720w labels after the filenames. ![]() Please note that providing the resolution in the file name is not required but it is recommended for it to be easily distinguished. In this case, we have an image named jack_wolskin_helium_intersport_1440x780.jpg for normal displays, jack_wolskin_helium_intersport_2880x1560.jpg for high-DPI displays and jack_wolskin_helium_intersport_720x390.jpg for low resolution displays. In order to display these images we must provide a srcset and sizes attributes besides the regular src attribute. ![]() A normal sized image for desktops (with low DPI) with 1440 pixels width for full-width image (the height is determined by the desired aspect ratio), another version twice its width in this case 2880 pixels (remember, doubling the width will result in a 4x bigger size), and a small image for smaller screens (720px). When preparing graphical content for your website (banners and other material), you should prepare 3 versions of the same image. The device will then decide which version to download according to its display DPI, signal strength and so on. ‘s srcset attribute allows us to present multiple versions of the same image to the user (device). Images are one of the most common multimedia elements we encounter while browsing the web so it’s no surprise that they (can) constitute a major part of the website’s size. However, this resulted in a slower page load time. With Intersport, we decided to use high-resolution images so the website looks nice on modern high-DPI (dots per inch) devices, such as tablets and mobile phones. We have added a watcher to the following folders (most of the client content images are here): I asked our system admins to install the necessary php plugin `jpegoptim` and, when they were done, I was able to configure it and test the results. Also, any other hard links to the file, which are being optimized, are unaffected. Only normal files are optimized, while symbolic links and special files are skipped. The program supports lossless optimization, which is based on optimizing the Huffman tables, and the so-called “lossy” optimization or lossy compression where, in addition to optimizing the Huffman tables, the user can specify the upper limit for image quality.īy default, jpegoptim modifies the input files (if they are optimized) in order to preserve original files use option -d to specify alternate directory for saving the optimized files as well. Here, we turned to jpegoptim, which is used to optimize/compress jpeg files. The problem we encountered with our project Iglusport was the fact that the client was used to uploading unoptimized images for the main banners and for the homepage content. While the size is perfectly acceptable, the resulting images appear to have gained unwanted jagged edges. pngs without any transparency, it more than struggles with those with transparency. My first thought was that the culprit was the image compression adapter used by default in Magento 2 – PHP GD2. png images with transparent backgrounds and we noticed that the quality of the images was not what we were hoping for. While working on the website Organic+ we used. Let’s take a look at a couple of different scenarios and solutions, where we encountered the need for image compression while working on our projects Organic+, Iglu Šport and Intersport. One way of achieving better performance is by properly optimizing or, in other words, compressing the images. It is well established that we must take good care of our website’s performance in order to achieve a good user experience and good rankings on search engines. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |