Caltron’s Digital Signage Players support non-progressive image files

You may have had some experiences with progressive images when searching the web before. Sometimes, when you visit a certain website and see the small icon of a picture, which you click to enlarge, you notice that the large image takes a few moments to load. The first image that is loaded will be a low quality image and as the image loads more, it will gradually get better, hence progressive scan. Almost all images are stored as a baseline image which means that the image or JPEG file is saved as a top to bottom scan when the image is displayed. Most images for the web are saved as a progressive scan. When displaying an image on the web the image gradually becomes more clear and this is likely because it is a progressive image which add lines/layers until the image is completely shown. These photos are generally saved as a progressive image, which is basically a rearrangement of the same image in a particular order, but displayed differently and in a more complicated way to eventually display the same image as a baseline image. The viewer can make an earlier decision on whether to drop the selection or wait for the whole image to be displayed. This is generally more helpful for those with slower internet connections.

Caltron’s Digital Signage Player support baseline files like most other decoders on the market. When wanting to use a progressive image, please be aware that options will be very limited when trying to find a player that is compatible. Usually progressive images are better suited for websites and not so much digital signage players in general. Digital Signage players today are more suited for baseline JPEG files.