One
of the most interesting technological advances of recent years have been the HDR images, like this:
This is an HDR I made from the window of my house. The acronym HDR means High Dynamic Range (High Dynamic Range) and is a term that encompasses many images with different formats and many programs that allow access to this technology that allows access to a better dynamic range between light areas lighter and more dark a picture. In theory this means that we can ensure that everything is perfectly exposed and even eliminate all the shadows of the image (although this is not very well). I'm experimenting with a software called Luminance HDR, an exciting program that has many more editing options than other HDR programs.
HDR images are made by mixing 3 pictures underexposed * 1, 1 overexposed and taken correctly. These photos are loaded into the program and the program takes care to align and take the correct information for each of the images. The mixture of these images produce an HDR. All programs have a module HDR tone mapping, the idea of \u200b\u200bthis module is to convert HDR to LDR or low dynamic range images, images that can be displayed on computer screens and other devices not so advanced. The tone mapping modules leverage HDR nature of these images to produce interesting effects in the LDR. as these
The history of HDR images is almost as old as photography itself, but these programs are really innovative and Luminance are having a very interesting impact on the world of photography. And of course besides being an excellent program Luminance is OpenSource, you can import from other programs HDRs and LDRs can be saved in popular image formats, has many tone mapping options (to change the tone mapping loads several independent algorithms that are configurable in a very simple). runs on GNU / Linux Windows and Mac (of course I've only tested on Linux, I have no idea how to work on other systems). It can be downloaded from the Ubuntu software center (the package is called Qtpfsgui) and from here you can download for other systems
There
http://qtpfsgui.sourceforge.net/oldsite/download.php version. Deb for Ubuntu users who are more advanced and has more options, you can download
lffl luminance_2.0 ~ ~ ~ lucid ppa_i386.deb
lffl luminance_2.0 ~ ~ ~ lucid ppa_amd64.deb
Documentation of Luminance is not yet very complete, and the translation into English, but the GUI is very intuitive and virtually guiding the user program. Before the end of this week I have planned to use other HDR programs in order to add a comparative table of the most popular.
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* 3 or more, but to better explain the example I always put 3 images can be do with how many images you want and it will generate even better results.
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