examples of image processing in matlab

Ngày tải lên: 05/06/2014, 12:05

... Bhd. Working with Images in MATLAB Image Types: Binary Images ã In a binary image, each pixel assumes one of only two discrete values: 0 (off) and 1 (on). >> imshow(bwImg) Image Processing Using ... Importing and exporting images in MATLAB ã imfinfo ã imread and imwrite ã imshow 3. Converting between image formats Working with Images in MATLAB Image Processing Using MATLAB Copyrighted 2005 TechSource ... Bhd. Working with Images in MATLAB Image Types: MATLAB Data Types Used ã A wide array of different data types exist in MATLAB, but only a subset of the data types are used to represent images in MATLAB. Image...

Ngày tải lên: 23/12/2013, 03:16

Ngày tải lên: 23/12/2013, 03:16

... int biBitCount; // 2 bytes unsigned int biCompression; // 4 bytes unsigned int biImageSize; // 4 bytes unsigned int bihResolution; // 4 bytes unsigned int bivResolution; // 4 bytes unsigned int ... *fp){ fwrite(&bmpHeader.bfType,2,1,fp); fwrite(&bmpHeader.bfSize,4,1,fp); fwrite(&bmpHeader.bfReserved1,2,1,fp); fwrite(&bmpHeader.bfReserved2,2,1,fp); fwrite(&bmpHeader.bfOffBits,4,1,fp); } 1.5.3.2. Haøm ghi thoâng tin ảnh vào file: void Write_Info_Header(struct BitmapInfoHeader bmpInfo,FILE *fp){ fwrite(&bmpInfo.biSize,4,1,fp); fwrite(&bmpInfo.biWidth,4,1,fp); fwrite(&bmpInfo.biHeight,4,1,fp); fwrite(&bmpInfo.biPlanes,2,1,fp); fwrite(&bmpInfo.biBitCount,2,1,fp); fwrite(&bmpInfo.biCompression,4,1,fp); fwrite(&bmpInfo.biImageSize,4,1,fp); fwrite(&bmpInfo.bihResolution,4,1,fp); fwrite(&bmpInfo.bivResolution,4,1,fp); fwrite(&bmpInfo.biClrUser,4,1,fp); fwrite(&bmpInfo.biClrImportant,4,1,fp); } 1.5.3.3. ... BitmapFileHeader{ unsigned short int bfType; // 2 bytes unsigned int bfSize; // 4 bytes unsigned short int bfReserved1; // 2 bytes unsigned short int bfReserved2; // 2 bytes unsigned int bfOffBits; // 4 bytes }; 1.5.2.2....

Ngày tải lên: 23/02/2014, 12:20

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Ngày tải lên: 08/04/2014, 10:06

... area of automated analysis of text. The processes of acquiring an image of the area containing the text, preprocessing that image, extracting (segmenting) the individual characters, describing ... the characters in a form suitable for computer processing, and recognizing those individual characters, are in the scope of what we call digital image processing in this book. Making sense of the content of ... add-on products, including the Image Processing Toolbox, also are available. Areas of Image Processing Covered in the Book Every chapter in this book contains the pertinent MATLAB and IPT material needed...

Ngày tải lên: 28/04/2014, 10:26

... transformation function in Fig. 3.9 maps a narrow range of intensity levels in the lower end of the input intensity scale to the full intensity range in the output image. The improvement in image contrast ... than the number of intensity levels in f. 3.3 ■ Histogram Processing and Function Plotting 101 evident in the histogram of this image, shown in Fig. 3.8(d). The increase in contrast is due ... ylabel('Output intensity values', 'fontsize', 9) The text in the body of the graph was inserted using the TextBox and Arrow commands from the Insert menu in the MATLAB figure window containing...

Ngày tải lên: 28/04/2014, 10:26

... APPLICATION OF IMAGE PROCESSING C C Á Á C L C L Ĩ Ĩ NH V NH V Ự Ự LIÊN QUAN LIÊN QUAN APPLICATION OF IMAGE PROCESSING APPLICATION OF IMAGE PROCESSING APPLICATION OF IMAGE PROCESSING Indexed Images  An ... indexed intensity RGB binary General matrix rgb2ind rgb2gray mat2gray ind2gray gray2ind ind2rgb bw2ind im2bw im2bw im2bw Basics about image processing in matlab APPLICATION OF IMAGE PROCESSING ... IMAGE PROCESSING APPLICATION OF IMAGE PROCESSING Traffic Monitoring Ứng dụng trong giao thông

Ngày tải lên: 28/04/2014, 10:34

... sqrt, sin, cos, etc. APPLICATION OF IMAGE PROCESSING IMAGE PROESSING Low Level Process Input: Image Output: Image Examples: Noise removal, image sharpening Mid Level Process Input: Image Output: ... APPLICATION OF IMAGE PROCESSING IMAGE PROCESSING Using MATLAB

Ngày tải lên: 28/04/2014, 10:34

... number of steps governs the number of inten- sity values. Shown in Figure 6.7 is an image of Einstein quantized to five intensity values, notice that all the subtle variations in the curtain and in ... vectors are linearly dependent. In other words, a set of vectors are linearly dependent if at least one of the vectors can be expressed as a sum of scaled copies of the remaining vectors. Linear independence ... ways in which we can think of solving these equations for x and y. The first is to consider each equation as describing a line, with the solution being at the intersection of the lines: in this...

Ngày tải lên: 05/06/2014, 11:40

... the clinical cardiologist, a beginner in the biomedical engineering eld may also nd the review of concepts useful before requiring a more in- depth signal processing text. Signal processing ... that interpretation of these signals is often performed with little understanding of how these signals are obtained and processed. Why then would the understanding of signal and image processing ... that distinction. Douglas P. Zipes, MD Distinguished Professor Indiana University School of Medicine Krannert Institute of Cardiology, suite E315 1800 North Capitol Avenue Indianapolis, IN 46202,...

Ngày tải lên: 05/06/2014, 11:46

... assessing patients with a variety of etiologies for abdominal pain including determining the site of GI perforation in patients with extra-luminal intra- peritoneal gas (Hainaux et al. 2006). Appendicitis ... those of computed tomography (CT) or magnetic resonance (MR) images by means of fusion imaging processes. Image fusion, the process of aligning and superimposing images obtained using two ... imaging modalities, is in fact a rapidly evolving fi eld of interest. In this chapter, we review the various approaches that investigators have pursued in the development of 3D ultrasound imaging...

Ngày tải lên: 05/06/2014, 12:01

... found in any standard digital signal processing text, see for instance, Antoniou (1979). We will use FFT concepts in beam propagation problems in Chapter 4 and in image processing, in Chapters ... properties of convolution in our discussion on transfer functions for propagation in Chapter 3, and properties of correlation in connection with matched filtering and image processing in Chapter ... example of a two-lens imaging system that will be also discussed in detail later in connection with image processing. Note also that if the input ray is parallel to the axis (ray coordinate %2 in...

Ngày tải lên: 05/06/2014, 12:01

Ngày tải lên: 05/06/2014, 12:03

Ngày tải lên: 22/06/2014, 19:20

Ngày tải lên: 22/06/2014, 20:20

Ngày tải lên: 22/06/2014, 22:20

Ngày tải lên: 28/06/2014, 22:20

Ngày tải lên: 23/07/2014, 00:24