HDR photography is about merging multiple exposures together to extend dynamic range beyond camera’s capability. In perfect situation you’re locked down on a sturdy tripod, using cable release and nothing in a scene is moving. But in real life this doesn’t happen too often. During shooting in cities you can get people, cars, leafs or other stuff moving in your photograph and you have to deal with ghosting. A lot of software gives you a possibility do de-ghost a photo, but what if you want to show some movement?
I was shooting on a river bank in Prague and was thinking about using long shutter speeds to show movement in water and put it into contrast scene against architecture in background. You don’t have to remove ghosting from river, but you have to do something with ships passing by. Each exposure captures ship in a different position and with different length. And what software to use for correcting this type of image? Best would be Photoshop (of course) but you can get away with almost anything that can handle layers. And how is it done?
First of all generate your HDR photo in your favorite program, mine choice is Photomatix. Remember or save settings you used for that image. When it is processed pick a photo where you like a place where the boat or anything else is and create a Pseudo HDR shot. You’ll load only that one image in PS, Photomatix or whatever you use and process it using same settings to get exactly same look. After processing just load those two processed files into Photoshop as layers as layers and using masks remove the moving object from merged file and overwrite it with just that one object in Pseudo HDR file. You’ll get same look but without that crazy movement. Here is an example of this boat shot.