外文翻譯----數(shù)字圖像處理方法的研究（原文+譯文）.doc
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外文翻譯----數(shù)字圖像處理方法的研究（原文+譯文）,1introductioninterest in digital image processing methods stems from two principal application areas: improvement of pictorial information for human interpretat...
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1 Introduction
Interest in digital image processing methods stems from two principal application areas: improvement of pictorial information for human interpretation; and processing of image data for storage, transmission, and representation for autonomous machine perception. This chapter has several objectives: (1)to define the scope of the field that we call image processing; (2)to give a historical perspective of the origins of this field; (3)to give an idea of the state of the art in image processing by examining some of the principal area in which it is applied; (4)to discuss briefly the principal approaches used in digital image processing; (5)to give an overview of the components contained in a typical, general-purpose image processing system; and (6) to provide direction to the books and other literature where image processing work normally is reporter.
1.1 What Is Digital Image Processing?
An image may be defined as a two-dimensional function, f(x, y), where x and y are spatial (plane) 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 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. Pixel is the term most widely used to denote the elements of a digital image. We consider
1 緒論
數(shù)字圖像處理方法的研究源于兩個主要應(yīng)用領(lǐng)域:其一是為了便于人們分析而對圖像信息進(jìn)行改進(jìn)；其二是為了使機(jī)器自動理解而對圖像數(shù)據(jù)進(jìn)行存儲、傳輸及顯示。
1.1 數(shù)字圖像處理的概念
一幅圖像可定義為一個二維函數(shù)f(x, y)，這里x和y是空間坐標(biāo)，而在任何一對空間坐標(biāo)f(x, y)上的幅值f稱為該點圖像的強(qiáng)度或灰度。當(dāng)x，y和幅值f為有限的、離散的數(shù)值時，稱該點是由有限的元素組成的，沒一個元素都有一個特定的位置和幅值，這些元素稱為圖像元素、畫面元素或象素。象素是廣泛用于表示數(shù)字圖像元素的詞匯。在第二章，將用更正式的術(shù)語研究這些定義。
視覺是人類最高級的感知器官，所以，毫無疑問圖像在人類感知中扮演著最重要的角色。然而，人類感知只限于電磁波譜的視覺波段，成像機(jī)器則可覆蓋幾乎全部電磁波譜，從伽馬射線到無線電波。它們可以對非人類習(xí)慣的那些圖像源進(jìn)行加工，這些圖像源包括超聲波、電子顯微鏡及計算機(jī)產(chǎn)生的圖像。因此，數(shù)字圖像處理涉及各種各樣的應(yīng)用領(lǐng)域。
圖像處理涉及的范疇或其他相關(guān)領(lǐng)域(例如，圖像分析和計算機(jī)視覺)的界定
Interest in digital image processing methods stems from two principal application areas: improvement of pictorial information for human interpretation; and processing of image data for storage, transmission, and representation for autonomous machine perception. This chapter has several objectives: (1)to define the scope of the field that we call image processing; (2)to give a historical perspective of the origins of this field; (3)to give an idea of the state of the art in image processing by examining some of the principal area in which it is applied; (4)to discuss briefly the principal approaches used in digital image processing; (5)to give an overview of the components contained in a typical, general-purpose image processing system; and (6) to provide direction to the books and other literature where image processing work normally is reporter.
1.1 What Is Digital Image Processing?
An image may be defined as a two-dimensional function, f(x, y), where x and y are spatial (plane) 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 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. Pixel is the term most widely used to denote the elements of a digital image. We consider
1 緒論
數(shù)字圖像處理方法的研究源于兩個主要應(yīng)用領(lǐng)域:其一是為了便于人們分析而對圖像信息進(jìn)行改進(jìn)；其二是為了使機(jī)器自動理解而對圖像數(shù)據(jù)進(jìn)行存儲、傳輸及顯示。
1.1 數(shù)字圖像處理的概念
一幅圖像可定義為一個二維函數(shù)f(x, y)，這里x和y是空間坐標(biāo)，而在任何一對空間坐標(biāo)f(x, y)上的幅值f稱為該點圖像的強(qiáng)度或灰度。當(dāng)x，y和幅值f為有限的、離散的數(shù)值時，稱該點是由有限的元素組成的，沒一個元素都有一個特定的位置和幅值，這些元素稱為圖像元素、畫面元素或象素。象素是廣泛用于表示數(shù)字圖像元素的詞匯。在第二章，將用更正式的術(shù)語研究這些定義。
視覺是人類最高級的感知器官，所以，毫無疑問圖像在人類感知中扮演著最重要的角色。然而，人類感知只限于電磁波譜的視覺波段，成像機(jī)器則可覆蓋幾乎全部電磁波譜，從伽馬射線到無線電波。它們可以對非人類習(xí)慣的那些圖像源進(jìn)行加工，這些圖像源包括超聲波、電子顯微鏡及計算機(jī)產(chǎn)生的圖像。因此，數(shù)字圖像處理涉及各種各樣的應(yīng)用領(lǐng)域。
圖像處理涉及的范疇或其他相關(guān)領(lǐng)域(例如，圖像分析和計算機(jī)視覺)的界定
