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HDR PHOTOGRAPHY

High dynamic range imaging (HDRI or HDR) is a set of methods used in imaging and photography to allow a greater dynamic range between the lightest and darkest areas of an image than current standard digital imaging methods or photographic methods.<br>HDR images can represent more accurately the range of intensity levels found in real scenes, from direct sunlight to faint starlight, and is often captured by way of a plurality of differently exposed pictures of the same subject matter.<br>

AnjaliChiiz
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HDR PHOTOGRAPHY

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  1. HDR PHOTOGRAPHY

  2. What is HDR Photography High dynamic range imaging (HDRI or HDR) is a set of methods used in imaging and photography to allow a greater dynamic range between the lightest and darkest areas of an image than current standard digital imaging methods or photographic methods. HDR images can represent more accurately the range of intensity levels found in real scenes, from direct sunlight to faint starlight, and is often captured by way of a plurality of differently exposed pictures of the same subject matter.

  3. In simpler terms, HDR is a range of methods to provide higher dynamic range from the imaging process. Non-HDR cameras take pictures at one exposure level with a limited contrast range. This results in the loss of detail in bright or dark areas of a picture, depending on whether the camera had a low or high exposure setting. HDR compensates for this loss of detail by taking multiple pictures at different exposure levels and intelligently stitching them together to produce a picture that is representative in both dark and bright areas.

  4. How HDR works & its types Non-HDR cameras take photographs with a limited exposure range, resulting in the loss of detail in bright or dark areas. HDR compensates for this loss of detail by capturing multiple photographs at different exposure levels and combining them to produce a photograph representative of a broader tonal range. HDR images are also acquired using special image sensors. The two primary types of HDR images are: • Computer Renderings • Resulting from Merging Multiple Low-Dynamic-Range

  5. There are two broad rendering intents of HDR processing Photorealistic and Artistic • Photorealistic attempts to reveal what the scene looked like to the makers eye. • Artistic meant to be more like “Art” and not necessarily represent the actual scene. Some example scenes that are generally good for HDR: • Bright sunny day • Night scenes • Indoor scenes where bright sun is visible through windows • Outdoor scenes with highly reflective elements such as water falls.

  6. General Workflow: • Initial capture - bracketed range or single image (some HDR processing on a single exposure is possible) • Minimal image prep in RAW development or pre-HDR processing of captured TIFFs • Save As TIFF files • HDR software tools to create a combined image of high dynamic range exposures (in 32 bit and then converted by software to16 bit) • Final image processing in Photo Shop • Save completed image ready for output

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