High Dynamic Range

High Definition Resolution

High Definition Range

High Dynamic Resolution

To increase the overall brightness of an image

To reduce noise in an image

To expand the dynamic range of an image

To sharpen the details in an image

Tone Mapping

Exposure Blending

HDR Merging

HDR Stacking

To reduce the overall brightness of an image

To compress the dynamic range of an image

To increase the contrast of an image

To adjust the colors of an image

Global and Local

Linear and Non-linear

Absolute and Relative

Forward and Inverse

Global operators apply the same tone mapping function to the entire image, while local operators apply different tone mapping functions to different parts of the image.

Global operators are more computationally expensive than local operators.

Global operators produce more natural-looking results than local operators.

Local operators are more computationally expensive than global operators.

Linear

Sigmoid

Exponential

Logarithmic

Histogram Equalization

Adaptive Histogram Equalization

Contrast Limited Adaptive Histogram Equalization

Retinex

Local operators produce more natural-looking results.

Local operators are more computationally expensive than global operators.

Local operators can be used to selectively adjust the tone mapping of different parts of an image.

Local operators are less computationally expensive than global operators.

Local operators produce less natural-looking results.

Local operators are more computationally expensive than global operators.

Local operators can only be used to adjust the tone mapping of the entire image.

Local operators are less computationally expensive than global operators.

The dynamic range of the image

The overall brightness of the image

The contrast of the image

The colors of the image

Capture multiple exposures of the same scene using a tripod

Merge the exposures into an HDR image using HDR software

Tone map the HDR image using a tone mapping operator

All of the above

Ghosting

Noise

Color banding

All of the above

Using a tripod to keep the camera steady

Using a high-quality lens

Shooting in RAW format

All of the above

Using a low ISO setting

Using a noise reduction filter

Shooting in RAW format

All of the above

Using a high-quality monitor

Calibrating your monitor

Using a dithering algorithm

All of the above