Tài liệu Image Processing Lab pptx

... Introduction Image Processing Lab is a simple tool for image processing, which includes different filtersand tools to analyze images available in the AForge.NET framework. ... load an image System.Drawing.Bitmap image = (Bitmap) Bitmap.FromFile( fileName );// format image AForge.Imaging .Image. FormatImage( ref image );It is easy to apply any filter to your image: Collapse// ... It can be useful for image brightness/contrast regulation.Collapse// get image statisticsAForge.Imaging.ImageStatistics statistics = new AForge.Imaging.ImageStatistics( image );// get the...

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... to the mean because the average of each image is 4.125 and the average at each pixel position over all eight images is also 4.125. 102 Image Processing: The Fundamentals It is not ergodic ... of a single image, rather than from the statistics of a whole ensemble of images. Average across images at a single position = Average over all positions on the same image / ______I ... description of images from the signal processing point of view. Why do we need the statistical description of images? In various applications, we often haveto deal with sets of images of a certain...

... Image Enhancement What is image enhancement? Image enhancement is the process by which we try to improve an image so that it looks subjectively better. We do not really know how the image ... frequency content of the image. Which methods of the image enhancement reason about the grey level statistics of an image? 0 Methods that manipulate the histogram of the image for the purpose ... completely. Image Enhancement 147 What if the noise in an image is not impulse? The most common type of noise in images is Gaussian. We can remove Gaussian noise by smoothing the image. For...

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... Summary:1. Image enhancement• Image histogram• Image contrast adjustment• Image brightness adjustment2. Image thresholding3. Image arithmeticBasic Image Processing Image Processing Using MATLABCopyrighted ... with Images in MATLABa) Image types and classesb) Read/write imagesc) Display images2. Basic Image Processing a) Image contrast and brightness enhancementb) Image arithmetic3. Block Processing ... Sdn. Bhd.Working with Images in MATLABSection Outline:1. Image types• Index images• Intensity images• Binary images• RGB images2. Importing and exporting images in MATLAB• imfinfo• imread...

... Lab VII. DLSW (1 hour) Lab 8a 1. Configure DLSW between Ring1 and Ring 2. 2. Add R3’s ethernet into the DLSW network. Make sure there is connectivity between all lan interfaces. Lab ... of EIGRP. Lab 2c 1. Remove IGRP from R3 and the serial link between R3 and R4. Create a BGP autonomous network between these routers. Redistribute and aggregate all routes. Lab 2d 1. Filter ... token-ring interface on R5. Lab 2e 1. Remove filters from R4. 2. Configure R4 such that it advertises a default network to R5. R5 should be able to ping all interfaces. Lab III. Appletalk (1...

... Nhập dữ liệu khách hàng vào biến cấu trúc và ghi dữ liệu vào tập tin customer.Câu lệnh sẽ là:fwrite(&custdata, sizeof(struct cust_st), 1, fp);7. Đóng tập tin customer sau khi nhập dữ liệu. ... đảm rằng số tiền rút ra phải sẳn có trong tài khoản của khách hàng. Nếu sẳn có, cập nhật số tiền còn lại trong tài khoản. Cũng cần cậpnhật số tiền trong tài khoản cho các giao dịch gửi tiền. Câu ... đến tập tincustomer và tập tin trans. Và định nghĩa biến cấu trúc để nhập vào dữ liệu của giao dịchvà đọc dữ liệu khách hàng. Câu lệnh sẽ là:FILE *fp1, *fp2;struct cust_st custdata;struct...

... elementary images in terms of which SVD expands an image? There is no specific answer to this because these elementary images are intrinsic to each image; they are its eigenimages. 38 Image Processing: ... in the reconstructed image. Image Transformations 43 Figure 2.1: The original image and its five eigenimages, each scaled to have values from 0 to 255. 44 Image Processing: The Fundamentals ... decomposition of the image is optimal in the least square error sense but the base images (eigenimages), with respect to which we ex- panded the image, are determined by the image itself. (They...

... IntroductionModerndigitaltechnologyhasmadeitpossibletomanipulatemultidimensionalsignalswithsystemsthatrangefromsimpledigitalcircuitstoadvancedparallelcomputers.Thegoalofthismanipulationcanbedividedintothreecategories:•ImageProcessing imagein→imageout•ImageAnalysis imagein→measurementsout•ImageUnderstanding imagein→high-leveldescriptionoutc1999byCRCPressLLC• ... for Image AnalysisThe“rules”forchoosingthesamplingdensitywhenthegoal isimage analysis—asopposedtoimage processing aredifferent. The fundamentaldifferenceisthat thedigitizationofobjects in animageinto ... LLCImageProcessingFundamentalsIanT.YoungDelftUniversityofTechnology,TheNetherlandsJanJ.GerbrandsDelftUniversityofTechnology,TheNetherlandsLucasJ.vanVlietDelftUniversityofTechnology,TheNetherlands51.1Introduction51.2DigitalImageDefinitionsCommonValues•CharacteristicsofImageOperations•VideoParameters51.3ToolsConvolution•PropertiesofConvolution•FourierTransforms•PropertiesofFourierTransforms•Statistics•ContourRep-resentations51.4PerceptionBrightnessSensitivity•SpatialFrequencySensitivity•ColorSensitivity•OpticalIllusions51.5ImageSamplingSamplingDensityforImageProcessing•SamplingDensityforImageAnalysis51.6NoisePhotonNoise•ThermalNoise•On-ChipElectronicNoise•KTCNoise•AmplifierNoise•QuantizationNoise51.7CamerasLinearity•Sensitivity•SNR•Shading•PixelForm•SpectralSensitivity•ShutterSpeeds(IntegrationTime)•ReadoutRate51.8DisplaysRefreshRate•Interlacing•Resolution51.9AlgorithmsHistogram-BasedOperations•Mathematics-BasedOpera-tions•Convolution-BasedOperations•SmoothingOpera-tions•Derivative-BasedOperations•Morphology-BasedOp-erations51.10TechniquesShadingCorrection•BasicEnhancementandRestorationTechniques•Segmentation51.11AcknowledgmentsReferences51.1...