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  • efg's Image Processing:  Databases and Test Targets
    images faceimages tar Z ftp ftp uk research att com pub data mit faces tar Z 5 7 MB The Yale Face Database size 6 4MB contains 165 grayscale images in GIF format of 15 individuals There are 11 images per subject one per different facial expression or configuration center light w glasses happy left light w no glasses normal right light sad sleepy surprised and wink http cvc yale edu projects yalefaces yalefaces html AR Face Database This face database contains more than 130 people around 70 males and 60 females Everyone was asked to come twice to the Computer Vision Center where the pictures were taken under strict controlled conditions These two different sessions were separated in 14 days two weeks time http rvl1 ecn purdue edu aleix aleix face DB html See also Recognition in Algorithms for Face Recognition Home Page Demo Test Pattern Images Various test patterns including DisplayMate Master Test Pattern Color Scales SMPTE Color Bars Fine Dot Moire and Gray Scale Test Pattern at various resolutions including 640 x 480 800 x 600 and 1024 x 768 www displaymate com patterns html Edmund Optics Choosing the Correct Testing Target www edmundoptics com techsupport displayarticle cfm articleid 249 search 1 Test Targets www edmundoptics com onlinecatalog Browse cfm categoryid 289 Grain Test images about wheat grains corn weed seeds fragments of plants stem leaf etc string pea barley http physics2 kee hu baranyai image htm Image Database Carnegie Mellon www ius cs cmu edu idb IMINT Gallery www fas org irp imint index html Infrared Images Thermology Image Gallery www thermology com infrared htm Ishihara Test Charts efg s Color Reference Library Color Blindness Kodak Kodak www kodak com digitalImaging samples classic shtml ftp ftp kodak com www images pcd Knots Database of Knots ftp ftp ee oulu fi pub tklab KNOTS LBNL Image Library Lawrence Berkeley National Lab s Image Library http www itg lbl gov ImgLib project homepage html Landsat 7 Landsat 7 scenes from Greece Singapure and Israel Browse and make false color composition with entire set of Landsat images www inovagis org Mandrill Monkey efg s Create Mandrill BMP Lab Report efg s Show Image Lab Report NASA s Visible Earth A searchable directory of images visualizations and animations of the Earth www visibleearth nasa gov NIST Special Databases and Software from the Visual Image Processing Group ftp sequoyah ncsl nist gov pub databases catalog txt Includes Binary Images of Handwritten Segmented Characters 8 Bit Gray Scale Images of Fingerprint Image Groups OCR Face Mug Shot Fingerprint www itl nist gov div894 vip databases defs vip dbases html NOAA National Oceanic and Atmospheric Administration s Operational Significant Event Imagery Server High resolution detailed imagery of significant natural or anthropogenic environmental events that which are visible in remotely sensed data www osei noaa gov main5 html Nyquist Chart Using a Nyquist Chart to Evaluate Digital Camera Systems Part 1 www photobit com Technology White Papers Using a Nyquist Chart 1 using a

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  • efg's Image Processing:  Algorithms
    uk hipr html median html Adaptive Center Weighted Median Filter http Astro MartianBachelor com CB245 ACWM html Filtre Médian 3x3 5x5 http callisto si usherb ca 98715732 ift539 Diagram of optimal way to compute median value from 3x3 array in hardware Use the same logic in software www xilinx com xcell xl23 xl23 16 pdf Median filters are useful tools in digital signal processing Wesley examines their use for removing impulsive signal noise while maintaining signal trends Additional resources include aa1099 txt listings Dr Dobb s Journal October 1999 www ddj com articles 1999 9910 9910toc htm Spyros UseNet Post about Huang s Algorithm Rank operations pp 268 277 The Image Processing Handbook Section 6 4 Nonlinear filtering I the median filter and its variations High Performance Computer Imaging Filters Morphological Section 6 5 High Performance Computer Imaging Nonlinear filtering II morphological filters Filters Sharpening p 177 High Performance Computer Imaging Includes discussion of unsharp masking 3 Differentiation Sharpening Enhancement Caricatures and Shape Morphing http cgm cs mcgill ca godfried teaching pr web html Sharpening pp 77 79 Simplified Approach to Image Processing Filters Smoothing pp 176 177 High Performance Computer Imaging Gaussian Smoothing www dai ed ac uk HIPR2 gsmooth htm Filters Unsharp Mask Chris Russ UseNet Post about implementing unsharp mask Chris Russ UseNet Post about two common uses for unsharp mask Unsharp masking is a photographic technique that increases the sharpness of photographic images Tim presents an algorithm that implements this concept Additional resources include aa1199 zip source code Dr Dobb s Journal Nov 1999 www ddj com articles 1999 9911 9911toc htm Fingerprints See Recognition Fingerprints Fluorescence Imagnig Fluorescence Imaging Applications Guide Fluorescence Imaging Principles and Methods Focus Chris Russ UseNet Post about AutoFocus methods Fractal analysis pp 282 288 The Image Processing Handbook Gray Scales Perceptually Optimized Grayscales www fho emden de hoffmann optigray06102001 pdf Gamma correction efg s Color Reference Library Gray Scale Images Fast Gaussian blurring Operations on gray scale images Generalized order statistic filters Contour construction for 2D image Requires Magic Software www magic software com im gray htm Halftoning A Review of Halftoning Techniques Digital Halftoning Chapter 6 Simplified Approach to Image Processing Gernot Hoffmann s Dithering Halftoning www fho emden de hoffmann hilb010101 pdf Histogram equalization Use of computer graphic simulation to explain color histogram structure www graphics cornell edu pubs 1997 PLG97 html pp 233 241 The Image Processing Handbook pp 146 150 High Performance Computer Imaging includes discussion of adaptive histogram equalization Histograms Display Print Histograms R G B H S V efg s Show Image efg s HistoStretchGrays Lab Report Histogram base Operations Contrast stretching equalization www ph tn tudelft nl Courses FIP noframes fip istogram html Histogram Specification pp 49 54 Simplified Approach to Image Processing Histogram based operations pp 143 150 High Performance Computer Imaging Three way histograms RGB YUV HSI The Image Processing Handbook Section 4 2 2 Histogram Processing pp 171 185 Digital Image Processing 2nd edition Hough Transform Hough Transform Journal and Conference Papers http ipml ee duth gr papamark Hough html 8 Detection of Structure in Noisy Pictures and Dot Patterns http cgm cs mcgill ca godfried teaching pr web html On the Efficient Sampling Interval of the Parameter in Hough Transform www ecip tohoku ac jp hgot HT Hough Transforms www cogs susx ac uk users davidy teachvision vision4 html www cs cf ac uk Dave Vision lecture node32 html SECTION00162000000000000000 XHoughTool www lut fi dep tite XHoughtool xhoughtool html Kim Madsen s UseNet Post about Hough Transform Image Analogies http mrl nyu edu projects image analogies index html Image Query Fast Multiresolution Image Querying www cs washington edu research projects grail2 www projects query Shape Queries Using Image Databases www ee surrey ac uk Research VSSP imagedb demo html Also see book Wavelets for Computer Graphics Interpolation and Extrapolation See Resampling Michel Chabroux s UseNet Post explaining bilinear interpolation Jitter Infrared jitter imaging data reduction algorithms www eso org projects dfs papers jitter99 Lens Transformation http thorkildsen no faqsys docs lens txt Nonlinear Lens Distortion http astronomy swin edu au pbourke projection nonlinear Computer Generated Angular Fisheye Projections http astronomy swin edu au pbourke projection fisheye Eric Rudd s UseNet Post about fisheye lens simulation Lighting efg s Color Reference Library Masks Chapter 7 Processing Binary Images pp 431 508 The Image Processing Handbook Measurements Chapter 8 Image Measurements pp 509 574 The Image Processing Handbook Chapter 16 Size and Shape pp 485 508 Practical Handbook on Image Processing for Scientific Applications Metamorphisis Feature Based Image Metamorphosis www hammerhead com thad morph html Metrology Metrology based on Computer Vision www cranfield ac uk sme amac research metrology metrology html Moiré Methods Moiré Methods Make Shape Recognition Easier Vision Systems Design March 1997 pp 32 37 Modelization of the Moiré Phenomenon http diwww epfl ch w3lsp pub publications moire Moiré Effects With Overlayed Line Screens www education siggraph org slides slides95 s13 htm Moments of Inertia www cm cf ac uk Dave AI2 node194 html On the Calculation of Arbitrary Moments of Polygons http www9 informatik tu muenchen de forschung fgbv tech reports 1996 FGBV 96 05 Steger abstract html Morphology Understanding mathematical morphology Vision Systems Design May 1999 Understanding more mathematical morphology Vision Systems Design June 1999 Morphological Image Analysis Principles and Applications June 1999 Author s page The Morphology Digest is intended as a forum between workers in the field of Mathematical Morphology and related fields stochastic geometry random set theory image algebra etc www cwi nl ftp morphology digest Mathematical Morphology and Image Interpolation http cmm ensmp fr beucher interpol interpol html SDC Morphology Toolbox for MATLAB includes fast queue based algorithms for distance transform watershed reconstruction labeling area opening etc www mmorph com Mosaicing Rho Ophiucus Mosiac Processing Example www jps net jrfcomet tech rho htm An Introduction to Image Mosaicing www pitt edu sevgum research mosaicing Image Registration and Mosaicking www PrettyView com mtch mtch shtml Automatic Panoramic Image Merging www sgi com grafica merge index html Mosaicing with Super Resolution www cs huji ac il zomet superResolution html Motion Image Sequence Segmentation www uwm edu gjb thesis html Estimation of Visual Motion in Image Sequences www imm dtu dk documents users rl publications abstracts phdthesis abstract html Chris Russ UseNet Post with suggestion on how to detect motion by image difference Section 5 4 2 Removal of Blur Caused by Uniform Linear Motion pp 272 278 Section 7 5 The Use of Motion in Segmentation Digital Image Processing Motion www cogs susx ac uk users davidy teachvision vision6 html Introduction to Active Contours and Visual Dynamics www robots ox ac uk ab dynamics html Motion and Time Sequence Analysis www dai ed ac uk CVonline motion htm Thomas Kragh s UseNet Post about Motion Blur Chapter 13 Orientation and Velocity 415 440 Practical Handbook on Image Processing for Scientific Applications Neural Networks Neural Network as a Tool for Feature Selection www prettyview com ann nnfs shtml Noise Removal Noise Removal from Images www math berkeley edu sethian Movies Movienoiseremoval html The SUSAN algorithms cover image noise filtering edge finding and corner finding www fmrib ox ac uk steve susan Median filters are useful tools in digital signal processing Wesley examines their use for removing impulsive signal noise while maintaining signal trends Additional resources include aa1099 txt listings Dr Dobb s Journal October 1999 www ddj com articles 1999 9910 9910toc htm Also see Median Filters Nyquist Limit Using a Nyquist Chart to Evaluate Digital Camera Systems Part 1 www photobit com Technology White Papers Using a Nyquist Chart 1 using a nyquist chart 1 htm Part 2 www photobit com Technology White Papers Using a Nyquist Chart 2 using a nyquist chart 2 htm Optimization Using MMX Technology to Speed Up Machine Vision Algorithms Part 1 www imaging com techinfo tutorials 00000009 tutorial html Part 2 www imaging com techinfo tutorials 00000015 tutorial html Panoramic Images Helmut Dersch s Panorama Tools Documentation Info and More Uses http www fh furtwangen de dersch Be wary of IPIX however Perimeter efg s E mail to Engineering Student at kmutt about how to computer perimeter of an objec t Photogrammetry See General Info page Point Operations Monadic image operations add constant subtract constant multiply constant divide into constant divide by constant or constant and constant xor constant Diadic image operations add subtract multiply divide min max or and xor Radon Transform http eivind imm dtu dk staff ptoft Radon Radon html Recognition Recognizing Flexible Objects www cs cornell edu vision pff boom99 Point Pattern Matching http web archive org web http www eso org ndevilla point2 Using Wayback Machine Chris Russ UseNet Post about fixing broken lines in image recognition Pattern Classification and Scene Analysis book Moiré Methods Make Shape Recognition Easier Vision Systems Design March 1997 pp 32 37 Chapter 9 Recognition and Interpretation pp 571 661 Digital Image Processing See also Skeletonization Recognition Faces The Face Detection Home Page www facedetection com Face Recognition Home Page www cs rug nl peterkr FACE face html Multi Modal System for Locating Heads and Faces www research att com library trs TRs 96 96 5 96 5 1 96 5 1 abs html Locating Faces and Facial Parts www research att com library trs TRs 96 96 4 96 4 1 96 4 1 body htm Bayesian Modeling of Facial Similarity www merl com reports TR99 13 index html Computer Vision Face Tracking For Use in a Perceptual User Interface http developer intel com technology itj q21998 articles art 2 htm The Biometric Consortium Research and Databases Face Fingerprints Handwriting Voice www biometrics org html research html Face detection recognition and analysis www cvc uab es jordi cares html Intelligent Biometric Techniques in Fingerprint and Face Recognition US UK Recognition Fingerprints Biometrics http dmoz org Computers Security Biometrics The Biometric Consortium Reseat and Databases Face Fingerprints Handwriting Voice www biometrics org html research html Fingerprint Enhancement www kttech com fingerpr html FBI Fingerprint Image Compression Standard www c3 lanl gov brislawn FBI FBI html FAQ about FBI s Wavelet Scalar Quantization Specification for compression of digitized gray scale fingerprint images ftp ftp c3 lanl gov pub misc WSQ FBI WSQ FAQ Intelligent Biometric Techniques in Fingerprint and Face Recognition US UK Recognition Handwriting The Biometric Consortium Reseat and Databases Face Fingerprints Handwriting Voice www biometrics org html research html Fingerprints and handwriting www vision1 com imagedb html NIST Form Based Handprint Recognition System www nist gov itl div894 894 03 databases defs nist ocr html Recognition Iris Iris Recognition Homepage www iris recognition org Recognition License Plates Vehicle Number Plate Recognition Home Page Universidade de Trás os Montes e Alto Douro www utad pt numberplate A Neural Network Based Artificial Vision System for Licence Plate Recognition www wspc com journals ijns 81 drag html Recognition Optical Character OCR Character Recognition http web mit edu stanrost www cs585p1 p1 html Optical Character Recognition Journal and Conference Papers http ipml ee duth gr papamark OCR html Character Recognition http www cedar buffalo edu Publications TechReps OCR ocr html OCR ICR Documents www alumni caltech edu dave patothr html Character Recognition by Feature Point Extraction www ccs neu edu home feneric charrec html Document Understanding and Character Recognition WWW Server http documents cfar umd edu Chapter 8 Optical Character Recognition pp 275 304 Chapter 9 Symbol Recognition pp 305 356 Algorithms for Image Processing and Computer Vision Geometry in Action www ics uci edu eppstein gina char html Recognition Pattern Pattern Recognition Links http cgm cs mcgill ca godfried teaching pr web html Understanding Pattern Recognition Visions Systems Design July 1999 Understanding More Pattern Recognition Techniques Visions Systems Design Aug 1999 pp 21 25 Pattern Recognition Resources www dcs ex ac uk paa resources htm Pattern Recognition Information www ph tn tudelft nl PRInfo html Statistical Pattern Recognition Artificial Neural Network Library SPRLIB ANNLIB www ph tn tudelft nl sprlib Optimizing Vision Applications Which is Better Blob Centroid or Grayscale Search www imaging com techinfo tutorials 00000016 tutorial html Red Eye See efg s Color and Computers page Representation Chapter 8 Representation and Description pp 483 569 Digital Image Processing Resampling Advanced Image Processing Image Interpolation and Filtering www engineering uiowa edu gec 248 s00 students blake carlson hw2 Interpolation for Scaling Rotation Perspective and Morphing www fho emden de hoffmann interpol181100 pdf Interpolation Nearest Neighbor Bilinear Cubic Convolution B Spline pp 110 123 Simplified Approach to Image Processing Digital Image Processing Principles and Applications pp 117 122 Image Processing By Interpolation and Extrapolation www sgi com grafica interp index html Efficient Image Magnification by Bicubic Spline Interploation http members bellatlantic net vze2vrva design html Mathematical Morphology and Image Interpolation http cmm ensmp fr beucher interpol interpol html Section 8 3 2 Interpolation in Practical Handbook on Image Processing for Scientific Applications p 269 Paul Heckbert s zoom program www cs cmu edu ph src zoom Non Linear Magnification Home Page http www cs indiana edu hyplan tkeahey research nlm nlm html Note from Lazikas o Pontios abut Resampling to zoom Testing Interpolator Quality www fh furtwangen de dersch interpolator interpolator html Restoration Reconstruction Electronic Imaging a Tool for the Reconstruction of Faded Color Photographs http www foto unibas ch research paper1 restor html Image Restoration www dca fee unicamp br dipcourse html dip c7 c7 html Novel Blind Deconvolution Techniques Restore Blurred Images Researchers are using blind image deconvolution to automatically deblur telescope and microscope images Vision Systems Design Nov 98 pp 35 41 Chapter 3 Correcting Image Defects pp 161 226 The Image Processing Handbook Chapter 5 Image Restoration pp 253 306 Digital Image Processing Chapter 6 Image Restoration pp 220 249 Algorithms for Image Processing and Computer Vision Chapter 9 Restoration and Reconstruction pp 287 306 Practical Handbook on Image Processing for Scientific Applications Rotation Turn Turn Turn Using the Graphics Class to Rotate Images http msdn microsoft com library periodic period99 turn htm HOWTO Display a Bitmap into a Rotated or Non rectangular Area Using Windows 2000 WarpBlt API call http support microsoft com support kb articles Q186 5 89 ASP High Accuracy Rotation of Images in Computer Vision Graphics and Image Processing Vol 54 No 4 July 1992 pp 340 344 One pass and multipass rotation Section 8 5 High Performance Computer Imaging 2 pass and 3 pass rotations Practical Handbook on Image Processing for Scientific Applications p 107 comp graphics algorithms FAQ Section 3 01 www exaflop org docs cgafaq In Windows NT the plgblt API call can be used for bitmap rotation if the RC BITBLT is supported by a device See efg s RotateScanline RotatePixels and FlipReverseRotate Lab Reports Scaling Bitmap Scaling www ddj com ftp 1997 1997 04 asc zip 2ddda asc Section 8 4 High Performance Computer Imaging Image Scaling Segmentation Digital Image Processing Principles and Applications pp 124 152 Image Segmentation and Mathematical Morphology http cmm ensmp fr beucher wtshed html Image Sequence Segmentation www uwm edu gjb thesis html Many image analysis tasks must first separate the image into clearly defined regions Lee s algorithm performs such a separation and presents the results in a fashion amenable to further study Additional resources include aa798 txt listings and aa798 zip source code July 1998 Dr Dobb s Journal www ddj com articles 1998 9807 9807toc htm Skin Cancer Segmentation program www cs wright edu people faculty agoshtas skinseg html Efficiently Computing a Good Segmentation www cs cornell edu Vision segmentation Understanding Image Segmentation Basics Vision Systems Design Sept 98 Oct 98 pp 20 22 Understanding Region Based Segmentation Vision Systems Design Nov 98 pp 21 23 Understanding Oversegmentation and Region Merging Vision Systems Design Dec 98 pp 21 23 Understanding Undersegmentation and Region Splitting Vision Systems Design Feb 99 pp 16 19 Understanding Edge and Line Based Segmentation Vision Systems Design Mar 99 pp 27 32 Understanding other edge and line based segmentation techniques Vision Systems Design Apr 99 Segmentation http axon physik uni bremen de research segmentation Color Image Segmentation with C code www caip rutgers edu comanici segm images html Unsupervised Segmentation http www sigproc eng cam ac uk sab Chapter 6 Segmentation and Thresholding pp 371 430 The Image Processing Handbook Chapter 7 Image Segmentation pp 413 482 Digital Image Processing Chapter 15 Segmentation pp 474 484 Practical Handbook on Image Processing for Scientific Applications Also see Segmentation on efg s Color Reference Library page Shape from Shading A method for determining the shape of a surface from its image www psrw com image ShapeFromShading shape html Sharpness see links under MTF Skeletonization Digital Image Processing Principles and Applications pp 137 139 The Scale Space Skeletonization Page http cyvision if sc usp br msskeletons Hilditch s Algorithm for Skeletonization http jeff cs mcgill ca godfried teaching projects97 azar skeleton html algorithm Skeletonization in 2D 3D and 4D images www ph tn tudelft nl pieter clop html Comparison of Skeletonization Methods www cs wisc edu cs766 1 spring99 hw hw1 result html Skew Skew Correction http ipml ee duth gr papamark free software2 htm Snakes Gradient Vector Flow GVF snake Active contours or snakes are computer generated curves that move within images to find object boundaries http iacl ece jhu edu projects gvf GVF snake for nix boxes source code ftp ftp cs wisc edu computer vision gsnake tar Snakes www tu dresden de fghgipg gen3 html Active Snakes www crl research digital com projects vision snakes snakes html Active Contours Snakes www persci com schulze snakes Active contour models of shape or snakes www cogs susx ac uk users davidy teachvision vision7 html Snakes Active Contour Models www ee oulu fi jth monitor snakes html GSNAKE API www cs wisc edu computer vision projects gsnake html Special Effects Beyond Photography The Digital Darkroom Out of Print 1995 Publisher Web Site http www phptr com ptrbooks ptr 0130744107 html Spectroscopy USGS Imaging spectroscopy analysis identify and map materials through spectroscopic remote sensing on the earth and throughout the

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  • SetHandle method is called which then calls a SetData method The TPen SetData calls the PenManager ChangeResource The TResourceMananger ChangeResource calls a FreeResource method The TResourceManager FreeResource seems to be calling a DeleteObject If this is correct then I don t think an explicit DeleteObject is needed Normally VCL components take care of this for you but when you call Windows API calls yourself then a DeleteObject would normally be

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  • efg's Reference Library: Delphi Cryptography and Multiple-Precision Arithmetic
    Standard 6 Textformats MIME Base 64 XX UU Coding RFC1760 Six Word 2 Randoms LFSR Linear Feedback Shift Register with variable Period upto 2 2032 1 with Ciphers can be encrypt in Modes CTS CBC CFB OFB ECB Ciphers supports Message Authentication Codes in CBC MAC CFB MAC CTS MAC fast Implementation i e Blowfish 8Mb sec MD4 27Mb sec Internet RFC2289 RFC1760 RFC2444 One Time Password Routines as Component http www torry ru vcl security strong chipher zip http delphi icm edu pl ftp d20free cipher zip Delphi Pages Encryption Search Delphi Pages DES DataEncryptionStandard pas which contains TDESCipher an implementation of the 56 bit Data Encryption Standard block cipher Also includes an example project Optimized with much help from Bob Lee Encrypts 4 2 megabytes sec on a P2 www csd net daves delphi DES encryption decryption component www geocities com SiliconValley Bay 2111 des zip Encrypt Component to code decode text in a string Delphi Super Page http delphi icm edu pl ftp d10free encrypt zip Encryption in Delphi Revisited www undu com Articles 990427d html EncryptMsg DecryptMsg In Chapter 21 pp 347 349 How to Program Delphi 3 gbcrypt Simple and very fast Encrypt Decrypt component working on registers with a 64 bits key Delphi Super Page http delphi icm edu pl ftp d10free gbcrypt zip How to encrypt a String D3 D4 version using TSecurity class efg s SimpleSecurity ZIP project Image Encryption Image Encryption BMP s and JPEG s See Andreas Filsinger s original summary of this encryption method and an updated version for Delphi 6 01 MD5 Algorithm Steve Shafer s UseNet Post with Delphi unit Message Digests A collection of classes for creating message digests including MD2 MD4 MD5 SHA 1 and RIPEMD 160 Also includes a class for making secure hashes HMACs out of these digests The hierarchy works out real neat so they all have a consistent interfaces and a cute little virtual constructor mechanism for creating the HMACs class www csd net daves delphi MessageDigests zip Microsoft CryptoAPI For Your Eyes Only Working with the Microsoft CryptoAPI Delphi Informant Feb 1999 pp 52 60 link broken 8 Oct 2000 Misty1 A binary compatible implementation of the Misty1 encryption algorithm Delphi Super Page http delphi icm edu pl ftp d20free misty1 zip PGP Pretty Good Privacy Implementing Secure Messaging with PGP Delphi Informant www delphiinformant com features 2001 01 di200101mr f di200101mr f asp R2 R4 R5 R6 Block encryption algorithms by David Barton http delphi icm edu pl ftp d20free rc2 zip http delphi icm edu pl ftp d20free rc4 zip http delphi icm edu pl ftp d20free rc5 zip http delphi icm edu pl ftp d20free rc6 zip RSA http ace ulyssis student kuleuven ac be triade GInt bin RSA zip Shipjack Shipjack block encryption algorithm by David Barton http delphi icm edu pl ftp d20free skipjack zip Software protection Software protection based on hardware serial numbers that are being crypted using MD5 and converted to license and

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  • efg's Delphi Math Functions: Statistics and Probability
    Andre Ratel about algorithms used in these routines Also see notes about publications by Pierre L Ecuyer ParametricRSqr Buxbaum circularbib pBeta pBetaInv Left tail probability in the beta distribution and inverse StatUnit distr pBin binomial right tail probability StatUnit distr pChi2 pChi2Inv Right tail probability in the chi square distribution with f degrees of freedom and inverse StatUnit distr PeriodischeRangCorelation Buxbaum circularbib PermutationX Permutation of r objects from n ESBMaths pFdistr pFdistrInv Right tail proability in the F distribution iwth f1 f2 degrees of freedom 1 p percentile of F distribution StatUnit distr pGamma pGammaInv Right tail probability in the gamma distribution and inverse StatUnit distr PKhi2 Probability of Pearson s Khi 2 TPmath1 fmath PNorm pNormal pNormalInv Right tail probability in the normal distribution and inverse TPmath1 fmath StatUnit distr poidev Poisson distributed random deviates recipes PoissCL lower 1 p confidence limits for lambda in Poisson distribution when n is observed StatUnit distr pPoiss Right tail probaility in the Poisson distribution StatUnit distr PSnedecor Probability of Snedecor s F TPmath1 fmath PStudent Probability of Student s t TPmath1 fmath pTdistr pTdistrInv Right tail probability in the T distribution 1 p percentile of T distribution StatUnit distr ran0 random deviate by Park and Miller minimal standard recipes ran1 random deviate minimal standard plus shuffle recipes ran2 random deviate by L Ecuyer long period plus shuffle recipes ran3 random deviate by Knuth subtractive method recipes ran4 random deviate by DES like hashing recipes RandG Function RandG Mean StdDev Extended Extended generates data with given mean and standard deviation math mathe Random Function Random Range Integer Returns a random number within the rnage 0 X Range If Range is not specified the result is a real type number within the range 0 X 1 See Randomize Random involves compiler magic since it is not treated like a real function The compiler creates code to call RandInt or RandExt which can be found in the System PAS unit See efg s UseNet Post about this See Ray Lischner s UseNet Post clarifying parameter system uses compiler magic Random 16 and 32 bit random number generators from Communications of the ACM June 1988 Efficient and Portable Combined Random Number Generators pp 742 749 774 See other Pierre L Ecuyer s publications Random16 TXT Random32 TXT Comments from Andre Ratel about algorithms used in the routines above and his routines MRG32k3a MRG32k5a and MRG63k3a RandomGaussian Stockton Randomize Procedure Randomize Randomize initializes the built in random number generator with a random value obtained from the system clock To initialize the random number generator to a repeatable value assign a value to the RandSeed LongInt variable The RandSeed set by Randomize is related to the system clock See Randomize in the System PAS unit for details system Random Number Generators TPMath1 Random TPMath2 RanTest RanMul Random vector from a multinormal distribution TPMath2 RanMul Rao Rao s Abstands Test Buxbaum circularbib SekundaerAnalyse Buxbaum circularbib Stirling Stirling factorial approximation Turbo p 142 Wilcoxon Buxbaum circularbib ZeichneGruppierteDaten Buxbaum circularbib ZeichneMultiModal Buxbaum circularbib ZeichneUniModal Buxbaum circularbib ZufallAusBereich Buxbaum zufallbib ZufallBinomial Buxbaum zufallbib ZufallChiSqr Buxbaum zufallbib ZufallExponential Buxbaum zufallbib ZufallF Buxbaum zufallbib ZufallGamma Buxbaum zufallbib ZufallGeometrisch Buxbaum zufallbib ZufallPoisson Buxbaum zufallbib ZufallsZahl Buxbaum zufallbib ZufallT Buxbaum zufallbib Curve Fitting Regression Least Squares Data Modeling Numerical Methods in Pascal page http www rab larc nasa gov nmp nmpIndex htm Optimization The Shape of Data Object Pascal Implementations of Linear Least Squares www delphiinformant com features 1998 09 di199809rs f di199809rs f asp subscription Function Unit Name Description Source s ANOVA FitANOVA Estimate DeleteOrthDesign ConstructMinimum Analysis of variance models in orthogonal designs StatUnit anova Curve Fit A Delphi 4 and 5 version of Allen Miller s Curve Fitting routine from the book Pascal Programs For Scientists And Engineers typed and submitted to MTPUG in Oct 1982 by Juergen Loewner and corrected and adapted for Turbo Pascal by Jeff Weiss Modified by David J Taylor to work with Delphi 4 s open array parameters which allows the routine to be generalized so that it is no longer hard coded to make a specific order of best fit or work with a specific number of points http www david taylor pwp blueyonder co uk software CurveFit zip fgauss fit a sum of Gaussians using mrqmin function recipes fit least squares fit data to a straight line recipes FitConditionalLogitLinear FitConditionalRasch Conditional logistic regression StatUnit clogit FitCoxModel Estimation in a multiplicative hazards survival model by maximization of Cox s likelihood StatUnit newcox FitExpo Fits a sum of decreasing exponentials y Ymin A1 exp a1 x A2 exp a2 x A3 exp a3 x TP Reg FitFrac fits a rational fraction y p0 p1 x p2 x 2 1 q1 x q2 x 2 TP Reg FitHill fits the Hill equation y Ymax x n K n x n TP Reg FitIExpo fits the increasing exponential y A 1 exp k x TP Reg FitLin fits a linear function y a b x TP Reg FitLogis fits the logistic function y A B A 1 exp a x b TP Reg FitMich fits the Michaelis equation y Ymax x Km x TP Reg FitPKA fits the acid base titration function y A B A 1 10 pKa x TP Reg FitPoly fits a polynomial y b0 b1 x b2 x 2 TP Reg FitPower fits a power function y A x n TP Reg FitMcCullagh FitMcCullaghLogit FitMcCullaghProbit FitMcCullaghCLogLog McCullagh s model for grouped continuous data with unknown cutpoints StatUnit mcunit FitNegBin SaveFittedNegBin Negative binomial distribution StatUnit negbin FitNonLinear FitNonLinear1 InitNonLin NLTestModelChange Nonlinear regression model StatUnit nonlin FitPosScale Estimate a general linear model with error distribution of any type StatUnit posscale fleg fit a Legendre polynomial using lfit or svdfit recipes fpoly fit a polynomial using lfit or svdfit functions recipes Least Squares Generalized Least Squares TP GLS Least Squares Least squares fit to N sets of x y points mathe lfit general linear least squares fit by normal equations recipes Linear and Polynomial Regressions TPmath2 FitPoly medfit fit data

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  • or before post it to a database field Scramble it again before you want to view it Ensure to use the same key value for each pic but different values for different pictures var i j integer row pByteArray ScanlineByteCount integer begin with b do begin dormant ensure that the image is a DIB there where problems on monoChrome BMPs the memory image was not really what i expected dormant

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  • to use the same key value for each pic but different key values for different pictures Rev 1 001 2001 12 02 Andreas Filsinger www cargobay de new global var BMPScrambleSeed fix NextModulu Bug Rev 1 000 2001 12 02 Andreas Filsinger www cargobay de info This is my delphi 6 01 Version There where two reasons because i rewrite the code 1 In the Delphi Help there is a hint that you should NOT use random to encrypt data because implementations may change in future releases 2 after dormat i accessed the Rows That caused an Exception new only one ScanLine n new NO random call var i j integer Row PWordArray ScanlineBytes integer ScanlineOp word function NextModulu word asm PUSH EBX XOR EBX EBX MOV EAX 10000H IMUL EDX EBX BMPScrambleSeed 08088405H INC EDX MOV EBX BMPScrambleSeed EDX MUL EDX MOV EAX EDX POP EBX end begin BMPScrambleSeed Key with b do begin Ensure this is a device independent Bitmap HandleType bmDIB Get the Adress of the first Pixel Data Row Row ScanLine 0 Obtain Lenght of one ROW ScanlineBytes Integer ScanLine 1 Integer Row Obtain Lenght of one ignore direction Count of words is OK ScanlineOp abs

    Original URL path: http://www.efg2.com/Lab/Library/Delphi/Graphics/AndreasFilsinger_ImageEncryptionUpdate.txt (2016-02-14)
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  • note minus sign y1 round OldHeight cosine x2 round OldWidth cosine OldHeight sine y2 round OldHeight cosine OldWidth sine x3 round OldWidth cosine y3 round OldWidth sine The rotated corners tell us how big to make the new bitmap this code uses the D3 Math Unit minx MinIntValue 0 MinIntValue x1 MinIntValue x2 x3 miny MinIntValue 0 MinIntValue y1 MinIntValue y2 y3 maxx MaxIntValue x1 MaxIntValue x2 x3 maxy MaxIntValue

    Original URL path: http://www.efg2.com/Lab/ImageProcessing/BrienSmith_RotateScanline.TXT (2016-02-14)
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