Photoshop
HDR using Photoshop
The Photoshop tone mapping procedure offers four ways of tone mapping, of which three are of little use. Exposure/Gamma is a straightforward pairing of an exposure slider (for brightness) and a gamma slider (for contrast combined with brightness), which offers very basic global tone mapping. Highlight Compression applies a custom tonal curve to reduce highlight contrast drastically so as to brighten the rest of the image and restore contrast. Equalize Histogram, applies a different custom tonal curve to even out peaks in the histogram. All of these are global operators. The most useful is Local Adaptation. In 16-bit mode this offers a good level of control over four key elements of the image, Edge Glow, Tone and ...
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