Color Image Processing With Biomedical Applications by Rangaraj M. Rangayyan PDF


By Rangaraj M. Rangayyan

This full-color e-book starts off with a close research of the character of colour images-including common, multispectral, and pseudocolor images-and covers acquisition, qc, and demonstrate of colour photographs, in addition to problems with noise and artifacts in colour pictures and segmentation for the detection of areas of curiosity or items. The ebook is basically written with the (post-)graduate scholar in brain, yet working towards engineers, researchers, desktop scientists, details technologists, clinical physicists, and data-processing experts also will reap the benefits of its intensity of knowledge. these operating in different parts equivalent to DIP, laptop imaginative and prescient, trend reputation, telecommunications, seismic and geophysical purposes, biomedical purposes, sanatorium details platforms, distant sensing, mapping, and geomatics may perhaps locate this booklet important of their quest to profit complex innovations for the research of colour or multichannel photos.

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It should be noted that such naming or association of a color with a band of EM radiation assumes certain characteristics of the receptor, such as a standard human subject or viewer; not all human beings perceive a given band of EM radiation in the same manner. When characterizing light by its spectral composition, such composition is quantified through spectroradiometry. Spectroradiometry is the technique of measuring radiometric quantities as a function of wavelength. Radiometric quantities [22, 40] are used to specify the properties of a source of light and represent measurements of the power of the light source.

In spite of this aspect, colors will be accurately described by the three new coordinate values. Therefore, a color space is a concept with which color can be specified, created, and visualized. 13 Basic scheme of color perception in the retina illustrating the combination of the trichromatic and opponent theories [61, 62, 88]. The three types of cones involved in the perception of color are labeled as L, M , and S. The R − G operation is performed by parvocellular ganglion (PCG) cells, and the Y −B operation is performed by blue-yellow ganglion (BYG) cells.

When a surface is illuminated with a source of light, it absorbs some parts of the incident energy and reflects the remaining parts. When a surface is identified with a particular color, for example, red, it means that the surface reflects light energy in the particular range of the visible spectrum associated with the sensation of red and absorbs the rest of the incident energy. Therefore, the color of an object varies with the illumination. An object that reflects a part of the light that is incident upon it may be considered a secondary source of light.

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