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matlab图像处理函数(国外英语资料)
matlab图像处理函数(国外英语资料)
MATLAB image processing function.Txt, if I can see my shadow, I think it must be very sad, because I left the happiness in front of me. He who is easy to hurt others and himself, is always vague to the edge of distance. Matlab image function Guinness (2008-04-21 15:24:26)
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Matlab image function Daquan, 2008-04-17, 22:40Matlab commonly used image operations
I. read and write image files
1. imread
The imread function is used to read various image files, such as a=imread (e:\w01.tif)
Note: the computer E disk should have w01 corresponding.Tif file.
2. imwrite
The imwrite function is used to write image files such as imwrite (a,e:\w02.tif, TIF )
3. imfinfo
The imfinfo function is used to read information about an image file, such as imfinfo (e:\w01.tif)
Two. Image display
1. image
The image function is the most primitive image display function provided by MATLAB, such as the main color display image:
A=[1,2,3,4; 4,5,6,7; 8,9,10,11,12];
Image (a);
2. imshow
The imshow function is used to display grayscale image files, such as:
I=imread (e:\w01.tif);
Imshow (I);
3. colorbar
The colorbar function displays the color bar of the image.
Usually, the color map is adjusted to extend the data from the minimum to the maximum, that is to say, the entire color image is used for plotting. Sometimes you may want to change the way colors are used. The function Caxis on behalf of the color axis, because the color adds another dimension, it allows a part of a sub set of data using the entire color image or color image data using only the current of the whole set.
[cmin, cmax]=caxis returns the smallest and maximum data mapped to the first and last input entries in the color map. They are usually set to the minimum and maximum values of the data. For example, the function mesh (peaks) draws the grid diagram of the function peaks, and sets the color axis Caxis to [-6.5466, 8.0752], which is the minimum and maximum of the Z. The data points between these values, u
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