By Francesco Banterle
ISBN-10: 1568817193
ISBN-13: 9781568817194
Imaging strategies search to simulate the array of sunshine that reaches our eyes to supply the semblance of sensing scenes without delay. either images and special effects take care of the new release of pictures. either disciplines need to focus on the excessive dynamic variety within the power of seen mild that human eyes can feel.
Traditionally images and special effects took various methods to the excessive dynamic diversity challenge. paintings over the past ten years even though has unified those disciplines and created strong new instruments for the construction of advanced, compelling and real looking photographs. This publication offers a pragmatic advent to the rising new self-discipline of excessive dynamic variety imaging that mixes images and special effects. through offering certain equations and code, the e-book provides the reader the instruments had to scan with new concepts for developing compelling pictures.
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Additional info for Advanced High Dynamic Range Imaging: Theory and Practice
Example text
However, this is not sufficient to cover the entire range experienced by the HVS. It also is not suitable when simple image processing between two or more HDR images is carried out; for example, when adding or multiplying, precision can be easily lost and overflows may occur. Such conditions make floating point numbers preferable to integer ones for real-world values [86]. Using single precision floating point numbers, an image occupies 96 bits per pixel (bpp). 2. HDR Content Storing 23 RGBE, which was originally created for storing HDR values generated by the radiance rendering system [223].
8). 4 A Model of Visual Adaptation Ferwerda et al. [68] presented a TMO based on psychophysical experiments, which was subsequently extended by Durand and Dorsey [61]. 6).
These operators can be Global, Local, Segmentation, or Frequency/Gradient. In this case, f does not try to mimic the HVS, but it tries to create aesthetically-pleasing images inspired by other fields, such as photography. • Temporal operators. These operators are designed to be also suitable for HDR video content and animations. In the next section, the Matlab framework is presented and some basics common functions described. Afterwards, the main TMOs are reviewed. 1. 5. 1 TMO MATLAB Framework Often TMOs, independently to which category they belong, have two common steps.