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JLS File - What is a .jls file and how do I open it?

Learn about .JLS files and view a list of programs that open them.

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What is a JLS file? A JLS file is an image saved in the JPEG-LS file format. It contains a lossy or lossless compressed image. JLS files are typically created by medical imaging devices and digital cameras.

More Information In 1999, the Joint Photographic Experts Group ( JPEG ) released an addition to the original JPEG standard, describing a compression format that allowed programs to save images both losslessly and near-losslessly. That compression format and its associated file format were named JPEG-LS. Notably, JPEG-LS compression allows users to control the maximum amount of data that is lost when a program compresses their image, which is what makes the lossy version of the format "near-lossless." While JPEG-LS files are saved using the .jls extension, other file formats, such as .JPX and .SPIFF , also sometimes use JPEG-LS compression. JPEG-LS and JPEG, however, are different file formats, so programs that can open a .JPEG or .JPG often cannot open JLS files.

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DeveloperJoint Photographic Experts Group
Popularity4.0 | 5 Votes

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.JLS File Extension

JPEG-LS Image

DeveloperJoint Photographic Experts Group
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What is a JLS file?

A JLS file is an image saved in the JPEG-LS file format. It contains a lossy or lossless compressed image. JLS files are typically created by medical imaging devices and digital cameras.

More Information

In 1999, the Joint Photographic Experts Group ( JPEG ) released an addition to the original JPEG standard, describing a compression format that allowed programs to save images both losslessly and near-losslessly. That compression format and its associated file format were named JPEG-LS. Notably, JPEG-LS compression allows users to control the maximum amount of data that is lost when a program compresses their image, which is what makes the lossy version of the format "near-lossless."

While JPEG-LS files are saved using the .jls extension, other file formats, such as .JPX and .SPIFF , also sometimes use JPEG-LS compression. JPEG-LS and JPEG, however, are different file formats, so programs that can open a .JPEG or .JPG often cannot open JLS files.

How to open a JLS file

Most popular image viewing applications cannot open JLS files. However, you can open a JLS image in Irfanview (Windows) and XNView MP (cross-platform), and you can convert a JLS image to a more usable image format using NConvert (cross-platform).

Open and view .JLS files with File Viewer Plus . Free Download

Programs that open JLS files

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Windows

File Viewer Plus

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Get it from Microsoft

Free +

Irfanview

Free

XNViewMP

Free

NConvert

Free

Chasys Photo

Free

Mac

XNViewMP

Free

NConvert

Free

Linux

XNViewMP

Free

NConvert

Free

Category: Raster Image Files

Updated: September 8, 2020

Preguntas Frecuentes

What is a JLS file?↓
A JLS file is an image saved in the JPEG-LS file format. It contains a lossy or lossless compressed image. JLS files are typically created by medical imaging devices and digital cameras.
How do I open a .jls file?↓
Most popular image viewing applications cannot open JLS files. However, you can open a JLS image in Irfanview (Windows) and XNView MP (cross-platform), and you can convert a JLS image to a more usable image format using NConvert (cross-platform).

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