Itqualityassurance
The main difference is that when the picture (jpeg file) is export as "progressive" is going to load the full size image with reduced quality, while if it's export as "optimize" is going to load section by section from top to bottom.
- Should I save JPEG as progressive or optimized?
- What is an optimized JPEG?
- Which JPEG format is best in Photoshop?
- What is the difference between baseline standard and optimized and progressive?
Should I save JPEG as progressive or optimized?
If you want the images on your website to load faster, it's better to change them into progressive JPEG format. It works by loading images in successive waves. You'll see a blurry or pixelated picture at first, but it'll clear out. To see if your website contains baseline JPEG images, you can use the WebPageTest tool.
What is an optimized JPEG?
Optimized JPEG means that tables used for Huffman lossless coding are adaptively calculated for the file. This has no impact at all on the file quality (the Huffman coding stage is lossless, it does not affect pixels) but may reduce file size by some percent.
Which JPEG format is best in Photoshop?
So, which JPEG format is best in Photoshop? There are two different JPEG formats that can be used in Photoshop: lossy and lossless. Lossy JPEGs are smaller in file size, but they lose some image quality during compression. Lossless JPEGs don't lose any image quality, but they're larger in file size.
What is the difference between baseline standard and optimized and progressive?
Baseline (“Standard”) uses a format recognized by most web browsers. Baseline Optimized creates a file with optimized color and a slightly smaller file size. Progressive displays a series of increasingly detailed versions of the image (you specify how many) as it downloads.
