An Interdisciplinary Introduction to Image Processing: - download pdf or read online

By Steven L. Tanimoto

ISBN-10: 0262017164

ISBN-13: 9780262017169

This booklet explores snapshot processing from numerous views: the artistic, the theoretical (mainly mathematical), and the programmatical. It explains the fundamental ideas of picture processing, drawing on key recommendations and strategies from arithmetic, psychology of conception, desktop technology, and paintings, and introduces laptop programming in order to get extra regulate over snapshot processing operations. It does so with no requiring college-level arithmetic or previous programming adventure. The content material is supported through PixelMath, a freely to be had software that is helping the reader comprehend pictures as either visible and mathematical items.

The first a part of the e-book covers such themes as electronic photograph illustration, sampling, brightness and distinction, colour types, geometric modifications, synthesizing pictures, stereograms, photomosaics, and fractals. the second one a part of the publication introduces desktop programming utilizing an open-source model of the easy-to-learn Python language. It covers the fundamentals of photo research and trend attractiveness, together with facet detection, convolution, thresholding, contour illustration, and K-nearest-neighbor category. A bankruptcy on computational images explores such topics as high-dynamic-range imaging, autofocusing, and strategies for instantly inpainting to fill gaps or get rid of undesirable gadgets in a scene. purposes defined contain the layout and implementation of an image-based online game. The PixelMath software program offers a "transparent" view of electronic pictures by way of permitting the consumer to view the RGB values of pixels by means of zooming in on a picture. PixelMath presents 3 interfaces: the pixel calculator; the formulation web page, a sophisticated extension of the calculator; and the Python window.

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Additional resources for An Interdisciplinary Introduction to Image Processing: Pixels, Numbers, and Programs

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The Help button brings up some text that gives an overview of using PixelMath. 1 Opening an Image File Now let’s load an image into PixelMath. Go to the File menu on the calculator window. Select “Open Image . ” This will bring up a dialog window that you can use to select an image from somewhere on your computer. 14. As mentioned before, there are two ways of using PixelMath: as an application on your computer or as an applet on the web. In application mode, you can navigate throughout your file system to find the image you want.

Human rods are more sensitive to light than cones, but they do not provide color distinctions. , in the same scene or image. The human retina has a remarkable dynamic range, but the eye must still adapt over a period of time when moving from bright environments to dark environments or vice versa. Color is about the way humans perceive the distribution of light wavelengths in samples of light, especially those containing unequal amounts of the three additive primary colors (red, green, and blue).

3 Brightness and Contrast In this chapter you’ll learn to control the brightness and contrast of an image. At the same time, your fluency will increase, both for PixelMath and image processing generally. 1 The Phenomenon of Brightness The intensity of light represented at a pixel is usually known as its brightness. This brightness is related to the amount of light energy received from the scene at that pixel’s location in the original image. In a system in which colors are represented by RGB triples, black (0, 0, 0) is the least bright color and white (255, 255, 255) is the brightest color.

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An Interdisciplinary Introduction to Image Processing: Pixels, Numbers, and Programs by Steven L. Tanimoto


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