HomeCulture and EntertainmentServices (only Italian)

HDR on line through the fusion of two or three differently exposed pictures

This page allows create HDR images by merging two or three photos exposed in a different way, in order to obtain a final more realistic image than the initial ones. Although it is not HDR in the strict sense, the resulting picture is an HDR image in a broad sense (HDR is the the acronym for High Dynamic Range), since it equivalentas to what you would get from a sensor with a greater dynamic range, with a better signal to noise ration in the darker parts and which doesn't saturate in the brighter part.
For a description of the approach to the problem and for the instructions for this page look on the page HDR on line through the fusion of two or three differently exposed pictures.
The default values are the ones which proved to be the best in most cases!
The pictures you can find in the section What to see in Milan: Less known treasures of art and history have almost all obtained from two starting pictures fused using the algorythm contained in this page.
Note: If you want to let the system calculate the shift using a customized rectangle, click once on the high lights picture to begin it and click twice to close it!
Attention: If you use too large pictures (like > 12Mp) it can cause an error!
Create HDR image on line by fusing two or three images
Choose the High Lights

Choose Low Lights

Larger side length of the preview


Luminosity 1

Luminosity 2


  Delta X:   Delta Y:

High Lights Picture

Low Lights Picture

HDR Preview

HDR Image