HDR photography
High Dynamic Range
High Dynamic Range
Cameras and the human eye perceive the high-brigthness and low-brightness surfaces differently. The perfect human eye -which can’t be imitated perfectly even with the modern digital sensors- lets you see both, while the sensor of the digital cameras (CCD or CMOS) can’t capture both at the same time. The results are either too bright spots or too dark parts on the pictures.
Surely you have tried to take a photo of a nice building, but either the building became too dark or the slightly cloudy sky in the background disappeared from the picture.
How can we fix this problem? With a technique called HDR photography!
Example for underexposed, overexposed and HDR picture
The solution to this problem is taking different, over and underexposed pictures of the same object or location with the exposure bracketing function. The 3-5 RAW pictures that we get are used to create the HDR photo.
We can capture the original scenery with this technique. The sunlight and the shadows as well. As you can see from the pictures, on the traditionally taken indoor picture the scenery we can see through the windows doesn’t appear optimally. With HDR photography, this problem is fixed.
Why is this important for tours?
Virtual tours are taken usually in the interior of buildings, where sunlight coming in from the windows mix with low level artificial lights and shadowy, dark places. A complex mixture for every modern camera. This is why the HDR technique is important to produce natural images. The essence of HDR is to make pictures taken with a digial camera come near to what the human eye sees.