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| * Definitions: |
- 什么是图像？
- 什么是数字图像？
- 一个数字图像处理系统的组成和处理过程是怎样的？
- 数字图像处理可以在哪些领域应用？
- 进行数字图像处理需要什么工具？
- Definitions:
- An image may be defined as a two-dimensional function, f(x, y), where x and y are spatial coordinates, and the amplitude of f at any pair of coordinates (x,y) is called the intensity or gray level of the image at that point. When x, y, and the amplitude values of f are all finite, discrete quantities, we call the image a digital image. The field of digital image processing refers to processing digital images by means of a digital computer. Note that a digital image is composed of a finite number of elements, each of which has a particular location and value. These elements are referred to as picture elements, image elements, pels, and pixels.