几种图片的格式异同
我们最理想的图片是容量小质量高清晰的，这得根据不同图片的性质选择不同的输出格式。网上现今常用的图片格式有jpg、gif、png，至于bmp、svg、tif等格式由于文件大或浏览器不支持等原因不建议使用。
常用图片格式的特点：
jpg 有损、文件小
是一种有损压缩格式，能够将图像压缩在很小的储存空间，图像中重复或不重要的资料会被丢失，因此容易造成图像数据的损伤。
gif 无损、≤256色、动画、支持背景透明
是一种基于LZW算法的连续色调的无损压缩格式。其压缩率一般在50％左右，它不属于任何应用程序。目前几乎所有相关软件都支持它，公共领域有大量的软件在使用GIF图像文件。
png 无损、支持背景半透明(IE6下得用滤镜)
是网上接受的最新图像文件格式。PNG能够提供长度比GIF小30％的无损压缩图像文件。它同时提供 24位和48位真彩色图像支持以及其他诸多技术性支持。
做些试验…
jpg
gif
png994字节
2.55kb
2.01kb不清楚
清楚
清楚
类似这种规则渐变色彩比较丰富的输出为png。比如body里大背景渐变、水晶风格按钮等。
jpg
gif
png1.29kb
273字节
438字节不清楚
清楚
清楚
色彩比较单纯的小图输出成gif。常常应用在一些小按钮和icon小图标上。
jpg
gif
png7.42kb
15.1kb
35.1kb还行
清楚
清楚
人像风景类色彩非常复杂的图输出为jpg。这里gif图看上去也不错，但是如果图片尺寸稍大一点你就会发现它们的容量大小和图片质量会有明显的差距。
另外，gif动画的局限性很大，但它在网上使用得非常频繁，它只适用于色彩比较简单的小图，而对于人像风景类大图是不建议做成gif动画的，因为那样的图片大小和质量都是很吓人的。gif和png都可以背景透明，png还支持半透明，但IE6以下不支持，需要使用滤镜。
| 图像 | 格式 | 大小 | 质量 | 图像 | 格式 | 大小 | 质量 | 图像 | 格式 | 大小 | 质量 |
|---|
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1359
52
How to solve the problem of automatically saving pictures when publishing on Xiaohongshu? Where is the automatically saved image when posting?
Mar 22, 2024 am 08:06 AM
With the continuous development of social media, Xiaohongshu has become a platform for more and more young people to share their lives and discover beautiful things. Many users are troubled by auto-save issues when posting images. So, how to solve this problem? 1. How to solve the problem of automatically saving pictures when publishing on Xiaohongshu? 1. Clear the cache First, we can try to clear the cache data of Xiaohongshu. The steps are as follows: (1) Open Xiaohongshu and click the "My" button in the lower right corner; (2) On the personal center page, find "Settings" and click it; (3) Scroll down and find the "Clear Cache" option. Click OK. After clearing the cache, re-enter Xiaohongshu and try to post pictures to see if the automatic saving problem is solved. 2. Update the Xiaohongshu version to ensure that your Xiaohongshu
How to post pictures in TikTok comments? Where is the entrance to the pictures in the comment area?
Mar 21, 2024 pm 09:12 PM
With the popularity of Douyin short videos, user interactions in the comment area have become more colorful. Some users wish to share images in comments to better express their opinions or emotions. So, how to post pictures in TikTok comments? This article will answer this question in detail and provide you with some related tips and precautions. 1. How to post pictures in Douyin comments? 1. Open Douyin: First, you need to open Douyin APP and log in to your account. 2. Find the comment area: When browsing or posting a short video, find the place where you want to comment and click the "Comment" button. 3. Enter your comment content: Enter your comment content in the comment area. 4. Choose to send a picture: In the interface for entering comment content, you will see a "picture" button or a "+" button, click
What to do if the 0x80004005 error code appears. The editor will teach you how to solve the 0x80004005 error code.
Mar 21, 2024 pm 09:17 PM
When deleting or decompressing a folder on your computer, sometimes a prompt dialog box "Error 0x80004005: Unspecified Error" will pop up. How should you solve this situation? There are actually many reasons why the error code 0x80004005 is prompted, but most of them are caused by viruses. We can re-register the dll to solve the problem. Below, the editor will explain to you the experience of handling the 0x80004005 error code. Some users are prompted with error code 0X80004005 when using their computers. The 0x80004005 error is mainly caused by the computer not correctly registering certain dynamic link library files, or by a firewall that does not allow HTTPS connections between the computer and the Internet. So how about
How to make ppt pictures appear one by one
Mar 25, 2024 pm 04:00 PM
In PowerPoint, it is a common technique to display pictures one by one, which can be achieved by setting animation effects. This guide details the steps to implement this technique, including basic setup, image insertion, adding animation, and adjusting animation order and timing. Additionally, advanced settings and adjustments are provided, such as using triggers, adjusting animation speed and order, and previewing animation effects. By following these steps and tips, users can easily set up pictures to appear one after another in PowerPoint, thereby enhancing the visual impact of the presentation and grabbing the attention of the audience.
How to arrange two pictures side by side in wps document
Mar 20, 2024 pm 04:00 PM
When using WPS office software, we found that not only one form is used, tables and pictures can be added to the text, pictures can also be added to the table, etc. These are all used together to make the content of the entire document look richer. , if you need to insert two pictures into the document and they need to be arranged side by side. Our next course can solve this problem: how to place two pictures side by side in a wps document. 1. First, you need to open the WPS software and find the picture you want to adjust. Left-click the picture and a menu bar will pop up, select "Page Layout". 2. Select "Tight wrapping" in text wrapping. 3. After all the pictures you need are confirmed to be set to "Tight text wrapping", you can drag the pictures to the appropriate position and click on the first picture.
What should I do if the images on the webpage cannot be loaded? 6 solutions
Mar 15, 2024 am 10:30 AM
Some netizens found that when they opened the browser web page, the pictures on the web page could not be loaded for a long time. What happened? I checked that the network is normal, so where is the problem? The editor below will introduce to you six solutions to the problem that web page images cannot be loaded. Web page images cannot be loaded: 1. Internet speed problem The web page cannot display images. It may be because the computer's Internet speed is relatively slow and there are more softwares opened on the computer. And the images we access are relatively large, which may be due to loading timeout. As a result, the picture cannot be displayed. You can turn off the software that consumes more network speed. You can go to the task manager to check. 2. Too many visitors. If the webpage cannot display pictures, it may be because the webpages we visited were visited at the same time.
7-zip maximum compression rate setting, how to compress 7zip to the minimum
Jun 18, 2024 pm 06:12 PM
I found that the compressed package downloaded from a download website will be larger than the original compressed package after decompression. The difference is tens of Kb for a small one and several dozen Mb for a large one. If it is uploaded to a cloud disk or paid space, it does not matter if the file is small. , if there are many files, the storage cost will be greatly increased. I studied it specifically and can learn from it if necessary. Compression level: 9-Extreme compression Dictionary size: 256 or 384, the more compressed the dictionary, the slower it is. The compression rate difference is larger before 256MB, and there is no difference in compression rate after 384MB. Word size: maximum 273 Parameters: f=BCJ2, test and add parameter compression rate will be higher
How to rotate Word pictures
Mar 19, 2024 pm 06:16 PM
When we use Word office software for document processing, we often need to insert some pictures and other materials into the document. However, in order to achieve beautiful layout, we also need to perform some special layout on the pictures, among which rotation processing is the most basic. Typesetting processing, however, for some newcomers to the workplace who have just come into contact with Word office software, they may not be able to process pictures in Word documents. Below, we will share how to rotate pictures in Word. We hope it will be helpful and inspiring to you. 1. First, we open a Word document, and then click the Insert-Picture button on the menu bar to insert a random picture on the computer to facilitate our operation and demonstration. 2. If we want to rotate the image, then we need to
