Before

After

HDR( High Dynamic Range)

In image processing, computer graphics, and photography, high-dynamic-range imaging (HDRI or just HDR) is a set of techniques that allow a greater dynamic range of luminance between the lightest and darkest areas of an image than current standard digital imaging techniques or photographic methods. This wide dynamic range allows HDR images to more accurately represent the range of intensity levels found in real scenes, ranging from direct sunlight to faint starlight.^[1]

The two main sources of HDR imagery are computer renderings and merging of multiple photographs, the latter of which in turn are individually referred to as low-dynamic-range (LDR)^[2] or standard-dynamic-range (SDR)^[3] photographs.

Tone-mapping techniques, which reduce overall contrast to facilitate display of HDR images on devices with lower dynamic range, can be applied to produce images with preserved or exaggerated local contrast for artistic effect.

(wiki)

HDR are widely use by a photographer to preserve a detail in their image and yet to enhance their photo.

                                                      How to get this effect?
                                      1. Import photo>photoshop

                                   2. image>exposure>under expose,normal and over                               expose

3.save each edited photo

4.open ur Dynamic photo HDR4 software

5.merge

6.add effect