Differences between baseline JPEG and progressive JPEG

Differences between baseline JPEG and progressive JPEG

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The JPEG file format can be saved in two ways. They are baseline JPEG and progressive JPEG.

The two formats have the same size and image data, and their extensions are the same. The only difference is that they are displayed differently.

Baseline JPEG

This type of JPEG file is stored in the JPEG file by scanning from top to bottom. When you open this file to display its content, the data will be displayed from top to bottom lines in the storage order until all the data is read, the entire image is displayed. If the file is large or the network download speed is slow, the image is loaded by one row. This format of JPEG has no advantages. Therefore, progressive JPEG is generally recommended.

Progressive JPEG

Unlike baseline, the progressive JPEG file contains multiple scans. These scans are stored in JPEG files. When opening a file, the blurred outline of the entire image is displayed first. As the number of scans increases, the image becomes clearer and clearer. The main advantage of this format is that when the network is slow, you can see the picture outline to know what the picture is being loaded. When some websites open large images, you will notice this technology.

The JPEG file format can be saved in two ways. They are baseline JPEG and progressive JPEG.

The two formats have the same size and image data, and their extensions are the same. The only difference is that they are displayed differently.

Baseline JPEG

This type of JPEG file is stored in the JPEG file by scanning from top to bottom. When you open this file to display its content, the data will be displayed from top to bottom lines in the storage order until all the data is read, the entire image is displayed. If the file is large or the network download speed is slow, the image is loaded by one row. This format of JPEG has no advantages. Therefore, progressive JPEG is generally recommended.

Progressive JPEG

Unlike baseline, the progressive JPEG file contains multiple scans. These scans are stored in JPEG files. When opening a file, the blurred outline of the entire image is displayed first. As the number of scans increases, the image becomes clearer and clearer. The main advantage of this format is that when the network is slow, you can see the picture outline to know what the picture is being loaded. When some websites open large images, you will notice this technology.