OptiPic makes jpeg progressive

OptiPic allows your website to demonstrate better technologies and display jpeg faster thanks to progressive jpeg technology.

The technology of progressive jpeg allows you to keep the original quality of the picture, but the speed of loading such a file is greatly higher than of loading photos with other technical data. Let us consider this issue in more detail and more closely, and also talk about those aspects that require closer attention.

Progressive JPEG means faster loading of JPEG

Web optimized photos are in JPEG format. It has a certain classification and is represented by two following categories:

  • Sequential (baseline) – provides a regular boot image in one layer. Images are loaded from top to bottom with full resolution;
  • Progressive – includes a series of successive layers with gradually improving quality.

Progressive jpg first simply marks the contours of the future photo, and then loads the image into layers - from the layer with the worst quality to the last final layer with the maximum quality.

The advantages of this format are obvious and undeniable. Such a photo appears on the screen much faster, and its volume can be quite impressive. And this speed has a positive impact on the overall download speed of the web page as a whole.

It is enough to recall one simple fact for a better understanding. Even if you use low speed connection, a file in progressive jpg format with a size of 80 KB will be displayed much faster than a similar image of a sequential jpeg, which is reduced in size and has only 5 KB. Isn’t it impressive? Oh, yes it is!

During the first pass, the progressive jpeg has a lower resolution. However, the file includes the amount of data that are similar to a smaller image. And when displaying an object on a mobile device, the vast majority of users will not even notice the low resolution.

Despite all the advantages of progressive jpeg, its popularity today is significantly less than of the one. Over 90% of all images in the Web have a consistent display format.

But the situation is gradually changing in the opposite direction. The first steps in this direction are made by Google, which introduces new services for working with progressive jpeg and its subsequent promotion. Moreover browsers by the most different manufacturers gradually give preference to this format of display of photographs. Technology, which has been in a kind of isolation for the past few years, is now becoming more and more popular and in demand.

Now progressive jpeg has a wide range of advantages and benefits that are unquestioned. This format will confidently take its own place in future and in all its aspects is much better than outdated analogues of previous years.

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