It also does not align the bracketed images. This software is free and runs on a number of platforms, but isn’t easy too use due to it’s command line interface. So, some clever photographer/programmers have come up with an open source program called Enfuse. It is actually easier today to combine multiple images with masks in software such as Photoshop, but it still takes a certain level of skill in order to accomplish this. He used one negative for the sky and another for the ocean and combined them later into one print. The first recorded attempt to use several exposures to cover an extreme range of exposure values was Gustave La Gray back in 1850 to photograph a seascape and retain detail in the sky and the sea. However, long before the ability of photographers to create HDR images, there is a long-standing technique of using masks for the various exposed images to produce an image that contains a tonal range that is not possible to capture in a single image. Sometimes these images are really cool, and sometimes they are just, well… over-the-top! However, tonemapped HDR images have garnered a reputation, whether deserved or not, of being overly saturated, over-the-top photos. The photographer takes a series of bracketed exposures and specialized software is required in order to ‘tone map’ the high dynamic range 32 bit file by a nearly pixel by pixel basis which can be somewhat controlled by the photographer. True HDR images are 32 bit, floating point files that are ultimately scaled back to ‘normal’ 8 bit images that can be displayed on a standard video monitor or printed on printing paper. HDR is the abbreviation for High Dynamic Range images.
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