Image optimization starts by selecting the file format that best suits your needs. This is PNG over JPEG. No file format can control them. Everyone has different image requirements, even for other images in a single site. But don’t worry. This post will tell you how to choose the most appropriate image format for your WordPress site. We will look at some of the new generation of content, such as old favorites JPEG, PNG, and GIF, as well as webp and SVG. We will discuss strengths, weaknesses, and ideal use cases to let you optimize your images like an expert. I also made a PDF installation table for your reference! Click here to get a copy
Use the Smush guide for the male file format to find the file format that best fits the image. No need to share data with siblings. Why is it important to choose the correct file format? This is because more and more visitors visit websites from mobile devices. Compared with the private network, the network speed is relatively slow, and not everyone uses unlimited data. In addition, Google displays the pages loaded too slowly in the search results at a lower speed, thus deducting points. Therefore, improving the loading time is a simple way to increase traffic, sales and conversion. The
If you choose the wrong image format, you may accidentally provide a larger image than you need. Other image file features, such as transparency, unnecessary detail, and too many colors add bloat to the image. Sometimes you need these, sometimes you don’t. For example, if an image does not have transparency, even if you select an image type that does not support transparency, nothing is actually discarded. The key is to add only what you need. To select the best file size, you also need to consider the images of the rest of the web page to select the best file size. Since the average web page is currently close to 2 Mb, to use a relatively fast web site, you must maintain a site smaller than this limit. This means that you want to see not only the image, but also the sum of all the assets on the site. The
If the detailed hero image of 1MB is mostly the only image of the page with text, it will not cause much problem. However, if you want to display 10 large images (1MB in total) on the page, the image will become the slog that needs to be loaded. You can display fewer images, or you can display smaller images to reach a compromise. Method of compressing image: to select the ideal lossy versus lossless image format, we must understand the difference between lossy compression and lossless compression. Ideally, all of these algorithmic processes must be utilized in order to generate a minimum file size for the image. Not all formats support both formats. The
With loss compression, some data will be lost forever. Lost image compression permanently deletes image data and degrades the image in the process. Some of these additional details may not be recognized by the human eye, so they are not as bad as sound. In contrast, lossless image compression preserves data and therefore does not lose it. The lossless algorithm preserves all the data needed to accurately reproduce the image. Ideally, the image first goes through the loss compression phase, and then through the residual optimization lossless phase. A complete guide to image optimization
JPEG JPEG is the abbreviation of Joint Photographic Experts Group, which is designed for photos. The standard file format of most consumers’ digital cameras and mobile phones can be seen everywhere. JPEG has several advantages: JPEG can contain millions of colors, so it can generate rich and vivid images. Use multiple colors
No. If you create a PNG in the Photoshop save for Web dialog box, png-32 will not be listed as an option, but if transparency support is added, PNG will be automatically converted to png-32. Why? The png-32 supports 24 bit color and comes with an additional 8-bit alpha channel to achieve advanced transparency. Png-32 is designed to create advanced images using transparency gradients. These advanced features mean that png-32 will generate larger file sizes. If you do not create an image that requires complex transparency, use png-24. For png-32, if the created image coverage does not disappear. You can see an example here. Photoshop creates an image with a transparent gradient of two colors, fading from full opacity to full colorless transparency. To illustrate this, we use the following command to set the background behind the image to black: The png-32\/166kb black background darkens the color of the whole gradient, so you can see the way that affects the image display. The png-8 on png-8\/37kb will distort this effect. Png-8 images only support first level transparency, so transparency only appears on the thin curved strip at the top. Wouldn’t it be better to combine the advantages of webp PNG and JPEG? Google had the same idea and invented the open source webp format. Webp is probably one of the most conservative secrets in image optimization. Large sites such as youtube and eBay have started using them at the lowest level to improve site performance. There are two types of webp images: One is just webp, using loss compression. It can be considered a JPEG version of webp format. When creating a lossy webp in a program such as Photoshop, the compression ratio is selected. Other versions are considered webp lossless, close to PNG. The file is larger, but details are not lost. Both webp formats produce much smaller images than JPEG and PNG formats. Exactly how much is it? According to Google data, webp images are 25-34% smaller than JPEG and 26% smaller than similar PNGS on average. Great! So why haven’t we switched to webp images yet? Here’s the bad news. In 2010, webp entered the image scene, but fire fox and safari did not provide support. Safari is still not. But it’s probably only a matter of time before Firefox is available. Therefore, webp is not a complete browser support solution at present. This limitation can be avoided if PNG or JPEG functionality is provided to visitors using browsers that do not support webp. You can use plug-ins to create these beautiful webp files for WordPress. In fact, Smush Pro CDN converts images to webp. If someone visits the site in a browser that supports webp, Smush converts the image and provides the webp image. If you use a browser that does not support webp, you will receive daily JPEG or PNG. There are two types of story image graphics: vector and raster. Vector images are mathematically generated on a series of points connected by lines and curves to form geometric shapes. Vector graphics allow you to resize an image in any size shape without compromising the quality of the image. In contrast, raster graphics consist of pixels arranged in a grid, each pixel representing a color. Raster graphics are displayed in high quality only at the resolution you want to display. already
Provide images quickly. I am glad to write this post to learn about webp image, compression and other image optimization technologies, and to use the newly discovered knowledge to improve my personal website. When you try to read a long tutorial on how to create a webp image, you find that Smush Pro will do this by pressing the switch. I also enabled Smush CDN and saw that my page took less time to load. Smush Pro takes 3 seconds on some pages before loading images, but it is converted to webp and loaded in one second using Smush CDN. I flew away. Use Smush Pro for free. Please check how different your site is. Are you confident in your ability to choose your image now? Has your website tried my tips? How does the page speed improve? Labels: image format image optimization smash Web
