Chapter1
1. 搬家吉语An image may be defined as a two-dimensional function, f(x,y)浣溪, 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.
2. Image processing includes image acquisition, image storage, image transmission and digital image processing.
3. Low level process involves primitive operations such as image preprocessing to reduce noi, contrast enhancement, and image sharpening.
4. Mid-level process involves tasks such as gmentation, description, and classification (recognition) of individual objects.
5. As for mid-level process, its inputs are images, but its outputs are attributes extracted from tho images.
6. Digital image processing encompass process who inputs and outputs are images and, in addition, encompass process that extract attributes from images, up to and including the recognition of individual objects.
7. Image restoration is bad on mathematical or probabilistic models of image degradation.
8. Image compression is to reduce the storage required to save an image, or the 乡镇人大工作总结bandwidth required to transmit it.
9. Morphological processing is to extract image components that are uful in the reprentation and description of shape.关于责任的议论文
10. Which of the following can highlight certain features of interest of an image?
(A) Image enhancement
(B) Image restoration
(C) Image compression
(D) Image Segmentation
Chapter2
1.在晚上光线低的情况下锥状细胞起主要作用。（x）
2. At low levels of illumination vision is carried out by the rods, whereas at high levels (showing better discrimination) vision is the function of cones.
3. The perceived brightness is a simple function of intensity. (x)
4. Which of the following shows the fact that the perceived brightness is a simple function of intensity?
(A) Simultaneous Contrast
(B) Mach bands
(C) Optical illusions
(D) Perspective Illusion
5. Digitizing the coordinate values is called sampling; Digitizing the amplitude values is called quantization.
6. Intuitively, spatial resolution is a measure of the smallest discernible detail in an image.
7. Quantitatively, spatial resolution can be stated in a number of ways, with line pairs per unit distance, and dots (pixels) per unit distance.
8. Intensity resolution similarly refers to the smallest discernible change in intensity level.
粉丝扇贝蒜蓉的做法9. 下列两图的直方图相同。（√）
10. Which of the following is the histogram of the following image？
(A) (B)
(B) (D)
11. RGB颜色模型主要用于电脑监视器。（√）
12.下列哪种颜色模型主要用于彩色喷墨打印机？（B）
（A）RGB（B）CMY（C）HSB（D）YIQ
13. There are three commonly ud image interpolation methods，which are Nearest Neighbor Interpolation, Bilinear Interpolation and Cubic Polynomial Interpolation.
14. The pixels having a city-block distance from (x,y) less than or equal to some value r form a diamond centered at (x,y).
15. The pixels with chessboard distance from (x,y) less than or equal to some value r form a square centered at (x,y).
动态分区
16.图像的直方图基本上可以描述图像的概貌。下面所给的a、b蔬菜超市、c、d四个直方图中，哪幅直方图对应的图像最清晰？（ ）
Chapter3
一、填空
1. Image negative is to enhance white or gray detail embedded in dark regions of an image, especially when the black areas are dominant in size.
2. Log transform is to expand the values of dark pixels in an image while compressing the higher-level values.
3. Contrast stretching is ud to expand the range of intensity levels in an image so that it spans the full intensity range of the recording medium or display device.
4. Low-contrast images can result from poor illumination好好嗒嗒, lack of dynamic range in the imaging nsor, or even the wrong tting of a lens aperture during image acquisition.
