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Lightness, Brightness and Transparency

This volume deals with the visual perception of lightness, brightness, and transparency of surfaces, both under minimal laboratory conditions and in complex images typical of everyday life. Each chapter analyzes the challenging problem of how a pattern of light intensities on the retina is transformed into the visual experience of varying shades of grey, transparent surfaces, and light and shadow. One important theme which unifies the group of contributions is the recognition that the perception of surface lightness is rooted fundamentally in the encoding of relative intensities of light within the retinal image, not intensities per se. A second important unifying theme is an appreciation of the multiple dimensions of the visual experience of lightness, brightness, and transparency — people do not perceive the lightness of surfaces by discarding information concerning the light illuminating those surfaces; rather, they perceive a pattern of illumination projected onto a pattern of surface greys. The long-fascinating problems of surface lightness and color perception have become very active topics recently as a resurging interest within the visual perception community has coincided with an increasing appreciation of the centrality of these problems by the emerging machine vision community. The best of recent psychophysical work on lightness perception, as presented in this volume, will be of great interest to both of these communities. This book also marks a synthesis of old and new. A traditional, strongly Gestalt, approach that had fallen into neglect is updated in the light of new quantitative systematic methods and important later discoveries, such as the disappearance of stabilized retinal images. The book draws on such diverse approaches as Gestalt and ecological psychology, threshold psychophysics, and computational vision, advancing our understanding of the interrelations among surface color, illumination, perceived depth, shading, and transparency.

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The Lady's-Maid

Fiercely dependent on her identity as a lady’s maid, a woman relates her experiences and ambitions, and the paths that her vocation has taken her down in this dramatic monologue. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library.

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Criminal Poisoning

In this revised and expanded edition, leading forensic scientist John Trestrail offers a pioneering survey of all that is known about the use of poison as a weapon in murder. Topics range from the use of poisons in history and literature to convicting the poisoner in court, and include a review of the different types of poisons, techniques for crime scene investigation, and the critical essentials of the forensic autopsy. The author updates what is currently known about poisoners in general and their victims. The Appendix has been updated to include the more commonly used poisons, as well as the use of antifreeze as a poison.

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The Wronged Wife

After a year spent fighting for King Henry VIII, Lord Richard Morton returns to his Cornish home to find his wife with child. Driven by grief and blind rage, he lashes out violently at her and leaves, taking his five year old daughter with him. It is seven years before he learns his mistake, when his brother makes a death bed confession to raping Richard’s wife. Lord Morton knows he must return to Cornwall, must reunite his daughter with the mother she has not seen for seven years, but he dreads the encounter. He expects no forgiveness for having torn their lives apart, but he is unprepared for what awaits him. He learns he did far more damage than he thought and when he finds his wife is studying the heretical and dangerous works of the religious reformer, Martin Luther, he fears he is too late to attempt to repair the damage. He cannot risk having the illicit works under the same roof as his daughter, but she is so happy to be with her mother, he cannot bear to separate them again. Years of heartache and resentment stand between them, but he will do anything to win her love and trust once more. It will be the greatest battle of his life.