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How to install Luminance HDR 2.5.1 in Ubuntu 17.04

How to install Luminance HDR 2.5.1 in Ubuntu 17.04

Luminance HDR, formerly Qtpfsgui, is cross-platform graphics software used for the creation and manipulation of high-dynamic-range images. The input images can be supplied in multiple formats from JPEG to RAW files. Luminance HDR supports several High Dynamic Range (HDR), Low Dynamic Range (LDR) , OpenEXRRadiance and TIFF format. This tutorial will explain on the installation process of luminance HDR on Ubuntu 17.04.

Features

  • Selectable threshold for adjusting levels
  • Optional Lanczos interpolation
  • Antialiased display of images
  • Navigation of images in fullscreen
  • Rotate and resize HDR files
  • Tonemap HDR images
  • Projective Transformations
  • Copy EXIF data between sets of images

Installation procedure

To start the installation procedure, add the repository in the target system by executing the following command. 

root@linuxhelp1:~# add-apt-repository ppa:dhor/myway
 Every photographer needs some tools...
 More info: https://launchpad.net/~dhor/+archive/ubuntu/myway
Press [ENTER] to continue or ctrl-c to cancel adding it
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gpg: key E2B7D64D93330B78: public key " Launchpad PPA for Dariusz Duma"  imported
gpg: Total number processed: 1
gpg:               imported: 1
OK

The repositories are added to the target machine. Update the system by executing the apt-get update command. 

root@linuxhelp1:~# apt-get update
Get:1 http://ppa.launchpad.net/dhor/myway/ubuntu zesty InRelease [15.4 kB]                         
Get:2 http://ppa.launchpad.net/dhor/myway/ubuntu zesty/main i386 Packages [3,104 B]                
Get:3 http://ppa.launchpad.net/dhor/myway/ubuntu zesty/main amd64 Packages [3,100 B]               
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Hit:8 http://in.archive.ubuntu.com/ubuntu zesty-backports InRelease                                
Fetched 23.7 kB in 9s (2,488 B/s)                                                                   
Reading package lists... Done

The target machine is updated with the required repositories. Install the Luminance HDR package by running the following command. 

root@linuxhelp1:~# apt-get install luminance-hdr
Reading package lists... Done
Building dependency tree      
Reading state information... Done
The following additional packages will be installed:
  libcfitsio5 libgsl2
Suggested packages:
  gsl-ref-psdoc | gsl-doc-pdf | gsl-doc-info | gsl-ref-html
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Processing triggers for libc-bin (2.24-9ubuntu2) ...
Setting up luminance-hdr (2.5.1-1dhor~zesty) ...
Processing triggers for gnome-menus (3.13.3-6ubuntu5) ...
Processing triggers for hicolor-icon-theme (0.15-1) ...

The application is installed successfully. To run the application, type the package name in the ubuntu dashboard and click on the icon to run the application.

The application is running successfully. Now start editing HDR images by using Luminance HDR.

Wasn' t that an easy installation procedure? Luminance HDR can covert a LDR image to variety of methods.

Tag : Linux app Ubuntu
FAQ
Q
Can we have the tonemapping dialog apply its settings as soon as the user changes a value? In other words, can we avoid having an “apply” button?
A
Given how the tone mapping panel is implemented right now, this possibility has been discarded.
Q
Should I store JPEG or RAW files for HDR?
A
Both give the same result, provided you capture all the dynamic range in the scene. This means that with RAW files you may need to capture less files than with JPEGs. On the other hand creating an HDR with JPEG files is more “lightweight” process (reduced memory footprint).
Q
What is the meaning of the name Luminance HDR?
A
The name can be decomposed in 3 parts: Qt-pfs-gui.
Qt: the program uses Qt4 (www.trolltech.com) to show its graphical widgets.
pfs: the main backend library and original sourcecode base.
gui: this stands simply for graphical user interface.
Q
What is the meaning of the various settings for tone mapping operator X?
A
To answer precisely this question one would have to explain the inner workings of the tone mapping operator X, in terms of the original research paper. At the end of the day all that matters (to some people, at least) is to fiddle with the settings until you obtain a nice result.
Q
Why can’t Luminance HDR transfer the exif tags to TIFF files?
A
Because the library Luminance HDR uses to perform this task (exiv2) doesn’t support writing to tiff files yet. It’s in the working, though.