Download e-book for iPad: A field guide to digital color by Maureen Stone

By Maureen Stone

ISBN-10: 1568811616

ISBN-13: 9781568811611

Annotation Maureen Stone's box consultant to electronic colour provides a survey of electronic colour with designated emphasis on these fields vital for special effects. The publication presents the basis for knowing colour and its purposes, discusses colour media and colour administration and using colour in special effects, together with colour layout and choice. The e-book presents a consultant for somebody who wishes to  Read more...

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Used in digital color to measure the dyes and inks used in print and film, the subtractive color processes. The peaks of their color filters are designed 0 400 500 600 700 to match the specific Wavelength (nm) colorants being measured. Summary Light in the visible spectrum stimulates the cones in the retina, which encode and send messages along the optic nerve to produce the sensation of color. Different spectra can produce the same response, which is the property called metamerism. The encoding can be represented by three numbers because the human visual system is basi- 18 1 Color Vision cally trichromatic (three-colored).

Only the spatial frequency is different, which changes their appearance. 33 A Field Guide to Digital Color Adaptation Human vision is very adaptable. We are capable of seeing in both very dim and very bright light, and over six orders of magnitude from the dimmest starlight to full sunlight. When we move from bright to dim lighting, or vice versa, we can feel our visual system adapt. Think of this as a gain control on the visual system. For dim lighting, we turn up the sensitivity. For bright lights, we need to damp it.

The goal is to create a more flexible and robust definition of “looks the same” than that provided by trichromatic theory. Mark Fairchild’s book, Color Appearance Models, includes both a good description of color appearance as it is currently understood, and a survey of computation models that are being developed to address this complex topic. While the book is now five years old, it is still the best general reference for this topic. This chapter begins with a description of perceptually defined color spaces.

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A field guide to digital color by Maureen Stone

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