Fundamentals of Electronic Imaging Systems: Some Aspects of Image Processing |
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Page 141
... plate . The final step in the elimination of handwork from plate preparation was the development of the halftone process for the simulation of shadings , so that continuous - tone images might be reproduced purely mechanically . This ...
... plate . The final step in the elimination of handwork from plate preparation was the development of the halftone process for the simulation of shadings , so that continuous - tone images might be reproduced purely mechanically . This ...
Page 146
... plate . b ) Cold Type When using photocomposition ( cold type ) the output of the typesetter is a photographic image of the printed column . To make a relief plate , the photocomposition copy is first assembled into pages by pasting it ...
... plate . b ) Cold Type When using photocomposition ( cold type ) the output of the typesetter is a photographic image of the printed column . To make a relief plate , the photocomposition copy is first assembled into pages by pasting it ...
Page 147
... plates . These are metal - backed plas- tic sheets covered with a photoresist . After exposure in a plate burner , just as magnesium plates , they are processed and then etched with hot water , rather than acid . They are usually run ...
... plates . These are metal - backed plas- tic sheets covered with a photoresist . After exposure in a plate burner , just as magnesium plates , they are processed and then etched with hot water , rather than acid . They are usually run ...
Contents
Introduction | 1 |
Light and Optical Imaging Systems | 20 |
1 | 54 |
Copyright | |
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Common terms and phrases
achieved aliasing amplitude analog aperture average bandwidth baseband bits per sample bits/pel bits/sample block camera tube channel channel capacity coding systems color companding contours contrast curve display DPCM dynamic range edge points effect efficiency electronic entropy entropy coding error example exposure flicker flux Fourier frequency response function Gaussian graphics halftone harmonics illumination image processing impulse response input intersymbol interference lens letterpress light linear log2 low-pass filter lumen luminance methods modulation moiré patterns motion rendition nonlinear object optical system output Paper Density photons picture plate possible printing produce pseudorandom noise pulse quantization noise random repeating area reproduction resolution result sampled signal sampling density scanners scanning screen signal sensitivity sharpening sharpness shot noise shown in Fig spatial frequency spectral spectrum statistical steradian surface techniques temporal tone scale transform transmission transmitted two-dimensional vertical video signal visual wavelength