Known JP4 Files

Primary JP4 File Association

.JP4

File Format:	.jp4
Type:	Elphel Project Data

Compressed image format associated with Elphel Project, a software and HDL code for Elphel reconfigurable network cameras. JP4 format is compressed by JPEG compression and used for accurate representation of the scanned book pages and later used in other applications that involve post-processing.

Programmer:	Open Source
Function:	Compressed Files
Subkey:	HKEY_CLASSES_ROOT\.jp4

Software Programs That Open The Elphel Project Data:

Elphel Project by Open Source

Windows

Mac

Linux

BSD

Secondary JP4 Associations

.JP4

File Format:	.jp4
Type:	Electric Quilt Data

This JP4 format is a data file associated with Quilt, a quilt design software developed by Electric Quilt.

Programmer:	Electric Quilt
Function:	Data Files

Software Programs That Open Electric Quilt Data Files:

Electric Quilt by Electric Quilt

Compatible with:

Windows

Mac

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

Understanding JP4 Issues

Common Problems Opening JP4 Files

Elphel Project is Not Installed

You encounter an error message such as "%%os%% Can't Open JP4 Files" when trying to open your JP4. When this happens, it is commonly due to Elphel Project missing in %%os%%. You won't be able to double-click to open your JP4 because your OS doesn't know what to do with it.

Tip: When you have another program installed that you know will open your JP4, you can select it from the other programs listed (see "Show Apps").

Obsolete Version of Elphel Project

In other instances, your Elphel Project Data file version may not be supported by your version of Elphel Project. Installing the latest version of Elphel Project from Open Source is recommended. Your Elphel Project Data file was probably created by a newer release of Elphel Project than what's currently installed your computer.

Tip: Investigate your JP4 file by right-clicking and selecting "Properties" to find clues on what version you need.

Summary: In either case, the majority of problems opening JP4 files are related to not having the correct software application installed on your computer.

Associated Difficulties Loading JP4 Files

Even with the correct version of Elphel Project installed, you can still experience difficulties opening JP4s. If you're still experiencing problems opening JP4 files, there could be other computer problems. Other contributing causes:

• Corrupt Windows Registry file path references for JP4
• Corruption of the JP4 file description inside the Registry
• Incomplete or bad installation of a software application associated with the JP4 format
• The JP4 itself is corrupted
• Your JP4 is infected with malware
• Hardware related to JP4s has device driver corruption
• Too many applications are open on your PC to load your Elphel Project Data file successfully