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CharLS


Information about the package, CharLS, which is shipped with common Linux distributions. The CharLS package is designed for, An optimized implementation of the JPEG-LS standard.


Package Name:

CharLS

Summary:

An optimized implementation of the JPEG-LS standard

Description:

An optimized implementation of the JPEG-LS standard for loss less and near loss less image compression. JPEG-LS is a low-complexity standard that matches JPEG 2000 compression ratios. In terms of speed, CharLS outperforms open source and commercial JPEG LS implementations. JPEG-LS (ISO-14495-1/ITU-T.87) is a standard derived from the Hewlett Packard LOCO algorithm. JPEG LS has low complexity (meaning fast compression) and high compression ratios, similar to JPEG 2000. JPEG-LS is more similar to the old loss less JPEG than to JPEG 2000, but interestingly the two different techniques result in vastly different performance characteristics.

Architecture:

x86_64

Version:

1.0

Release:

5.el6

Size:

73 k

Repository:

epel

From Repository:

Licence:

BSD



Handy Yum Commands for CharLS


Control the CharLS package with the following handy commands outlined below.


Command

Description of Command

yum install CharLS

This command will install CharLS on the server.

yum remove CharLS

This command will un-install CharLS on the server. When you run this command, you will be asked if you are sure that you want to remove CharLS, so you have to manually confirm that you want to do this.

yum -y remove CharLS

This command will un-install CharLS on the server. When you run this command with th e -y flag, you will not be prompted to check that you are sure you want to remove the package - so be sure you absolutely want to remove CharLS when using the -y flag.

yum update CharLS

This command will update CharLS to the latest version. When you run this command, you will be asked if you are sure that you want to remove CharLS, so you have to manually confirm that you want to do this.

yum -y update CharLS

This command will update CharLS to the latest version. When you run this command with the -y flag, you will not be prompted to check that you are sure you want to remove the package - so be sure you absolutely want to remove CharLS when using the -y flag.

yum info CharLS

This command will show you core information about the CharLS package.

yum deplist CharLS

This command will show you the dependencies for CharLS. Thankfully, when using Yum, if dependencies are required, these are also installed at the same time so you don't have to worry too much about that.

yum check-update CharLS

This command will check if there is an update waiting on CharLS. When you run this command this will return nothing if there is nothing to update, or, will return the package name if the package is due to be updated.