Let’s say you were looking at a beautiful nighttime cityscape shot.
In other words, they allow you to make very specific selections in Photoshop based on how bright or dark an area is. Luminosity masks break an image down into various channels of luminosity. That is why so many digital photographers are beginning to make luminosity masks a staple in their workflow. While some HDR programs nowadays produce very natural, clean HDR images, luminosity masks do not affect the original files at all, so there is literally zero image degradation during the blending process. They give you incredibly fine control over your imagery in almost every area. Through the use of luminosity masks you can create stunning, balanced images that encapsulate a vast dynamic range of light. While you, and many photographers, may have relied heavily on HDR programs in your exposure blending quest, many more are now beginning to turn to luminosity masks as a cleaner alternative.
Image created by blending two exposure with luminosity masks, one for the sky and one for the foreground.
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