c++ builder code d'erreur: violation d'adresse 7c911278

salut, ce programme fait le rehaussement d'empreintes digitales , le problème lorsque je l'exécute il me détecte cette erreur : violation d'adresse 7C911278 dans le module 'ntdll.dll'. lecture d'adresse 00000001 ok alors c'est en c++ builder 6 :

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//---------------------------------------------------------------------------   #include <vcl.h> #pragma hdrstop #include <stdlib.h> #include <stdio.h> #include <math.h> #include <string.h> #include "Unit1.h" //********************************* #include "stdio.h" #include "stdafx.h" #include "image.h" #include "fvstypes.h" #include "config.h" #include "file.h" #include "string.h" #include "floatfield.h" #include "img_base.h" #include "imagemanip.h"   //******************************************************* #define P(x,y) p[((x)+(y)*pitch)] //**************************************************** //--------------------------------------------------------------------------- #pragma package(smart_init) #pragma resource "*.dfm"   #include "fmt_auto.cpp" #include "fmt_jpeg.cpp" #include "fmt_bitmap.h"     //------------------------------------------------------------------------------ // Déclaration des variables //------------------------------------------------------------------------------     TForm1 *Form1; //--------------------------------------------------------------------------- __fastcall TForm1::TForm1(TComponent* Owner) : TForm(Owner) {   }     //***************************************     void __fastcall TForm1::Button1Click(TObject *Sender) { try{ if(OpenPictureDialog1->Execute()) { bitmap1->LoadFromFile(OpenPictureDialog1->FileName);   Image1->Canvas->StretchDraw(Rect1, bitmap1); }   } catch(...) { ShowMessage( "Impossible d'ouvrir l'image"); }   Image1->Visible=true;     Form1->Panel1->Visible=true; Form1->Label1->Visible=true; // Form1->Button2->Enabled=true; }   //---------------------------------------------------------------------------       void __fastcall TForm1::FormCreate(TObject *Sender) { bitmap1=new Graphics::TBitmap; bitmap2=new Graphics::TBitmap;   bitmap1->Width=TIM; bitmap1->Height=TIM; bitmap2->Width=TIM; bitmap2->Height=TIM;   Rect1=Rect(0,0,Image1->Width,Image1->Height); Rect2=Rect(0,0,Image2->Width,Image2->Height);     Image1->Visible=false;   FvsImage_t image;   Panel1->Visible=true; Label1->Visible=true; Panel2->Visible=true; Label2->Visible=true;         Form1->Button1->Enabled=true; //Form1->Button2->Enabled=false;     } //---------------------------------------------------------------------------   //********************* fonction pr image**************   typedef struct iFvsImage_t { FvsByte_t *pimg; /* 8 bit image array */ FvsInt_t w; /* width of image */ FvsInt_t h; /* height of image */ FvsInt_t pitch; /* pitch */ FvsImageFlag_t flags; /* flags */ } iFvsImage_t;     FvsImage_t ImageCreate() { iFvsImage_t* p = NULL;   p = ( iFvsImage_t* ) (FvsImage_t)malloc(sizeof(iFvsImage_t)); if (p!=NULL) { p->h = 0; p->w = 0; p->pitch = 0; p->pimg = NULL; p->flags = FvsImageGray; /* default flag */ } return (FvsImage_t)p; }     void ImageDestroy(FvsImage_t image) { iFvsImage_t* p = NULL; if (image==NULL) return; (void)ImageSetSize(image, 0, 0); p = ( iFvsImage_t* )image; free(p); }     FvsError_t ImageSetFlag(FvsImage_t img, const FvsImageFlag_t flag) { iFvsImage_t* image = (iFvsImage_t*)img; image->flags = flag; return FvsOK; }     FvsImageFlag_t ImageGetFlag(const FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; return image->flags; }     FvsError_t ImageSetSize(FvsImage_t img, const FvsInt_t width, FvsInt_t height) { iFvsImage_t* image = (iFvsImage_t*)img; FvsError_t nRet = FvsOK; FvsInt_t newsize = width*height;   /* special case for zero size */ if (newsize==0) { if (image->pimg!=NULL) { free(image->pimg); image->pimg = NULL; image->w = 0; image->h = 0; image->pitch = 0; } return FvsOK; }   if (image->h*image->w != newsize) { free(image->pimg); image->w = 0; image->h = 0; image->pitch = 0; /* This allocates the amount of memory need for the image structure */ image->pimg = (uint8_t*)malloc((size_t)newsize); }   if (image->pimg == NULL) nRet = FvsMemory; else { image->h = height; image->w = width; image->pitch = width; } return nRet; }     FvsError_t ImageCopy(FvsImage_t destination, const FvsImage_t source) { iFvsImage_t* dest = (iFvsImage_t*)destination; iFvsImage_t* src = (iFvsImage_t*)source; FvsError_t nRet = FvsOK;   nRet = ImageSetSize(dest, src->w, src->h);   if (nRet==FvsOK) memcpy(dest->pimg, src->pimg, (size_t)src->h*src->w);   /* copy the flag */ dest->flags = src->flags;   return nRet; }     FvsError_t ImageClear(FvsImage_t img) { return ImageFlood(img, 0); }     FvsError_t ImageFlood(FvsImage_t img, const FvsByte_t value) { FvsError_t nRet = FvsOK; iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return FvsMemory; if (image->pimg!=NULL) memset(image->pimg, (int)value, (size_t)(image->h*image->w)); return nRet; }     /* set a pixel value in the picture */ void ImageSetPixel(FvsImage_t img, const FvsInt_t x, const FvsInt_t y, const FvsByte_t val) { iFvsImage_t* image = (iFvsImage_t*)img; int address = y * image->w + x; image->pimg[address] = val; }     /* This function returns the pixel for the x and y value */ FvsByte_t ImageGetPixel(const FvsImage_t img, const FvsInt_t x, const FvsInt_t y) { iFvsImage_t* image = (iFvsImage_t*)img; /* position in array */ int address = y * image->pitch + x; return image->pimg[address]; }     /* returns a pointer to the image buffer */ FvsByte_t* ImageGetBuffer(FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return NULL; return image->pimg; }     /* retrieve width and height */ FvsInt_t ImageGetWidth(const FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return -1; return image->w; }     FvsInt_t ImageGetHeight(const FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return -1; return image->h; }     FvsInt_t ImageGetSize(const FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return 0; return image->h * image->w; }   /* get the pitch pixel(x,y) pos is at x + y * pitch */ FvsInt_t ImageGetPitch(const FvsImage_t img) { iFvsImage_t* image = (iFvsImage_t*)img; if (image==NULL) return -1; return image->pitch; }   FvsBool_t ImageCompareSize(const FvsImage_t image1, const FvsImage_t image2) { if (ImageGetWidth(image1)!=ImageGetWidth(image2)) return FvsFalse; if (ImageGetHeight(image1)!=ImageGetHeight(image2)) return FvsFalse; return FvsTrue; }     //***********************************image irode******//   FvsError_t ImageDilate(FvsImage_t image) { FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitch = ImageGetPitch (image); FvsInt_t size = ImageGetSize (image); FvsByte_t* p = ImageGetBuffer(image); FvsInt_t x,y;   if (p==NULL) return FvsMemory;   for (y=1; y<h-1; y++) for (x=1; x<w-1; x++) { if (P(x,y)==0xFF) { P(x-1, y) |= 0x80; P(x+1, y) |= 0x80; P(x, y-1) |= 0x80; P(x, y+1) |= 0x80; } }   for (y=0; y<size; y++) if (p[y]) p[y] = 0xFF;   return FvsOK; } //************************* fin imge dilate***********///   //*******************************image eroder**********// FvsError_t ImageErode(FvsImage_t image) { FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitch = ImageGetPitch (image); FvsInt_t size = ImageGetSize (image); FvsByte_t* p = ImageGetBuffer(image); FvsInt_t x,y;   if (p==NULL) return FvsMemory;   for (y=1; y<h-1; y++) for (x=1; x<w-1; x++) { if (P(x,y)==0x0) { P(x-1, y) &= 0x80; P(x+1, y) &= 0x80; P(x, y-1) &= 0x80; P(x, y+1) &= 0x80; } }   for (y=0; y<size; y++) if (p[y]!=0xFF) p[y] = 0x0;   return FvsOK; }   //*********************fin eroder*****************   //**************************************   //**********************file **************************             typedef struct iFvsFile_t { FILE *pf; /* file pointer */ } iFvsFile_t;     FvsFile_t FileCreate() { iFvsFile_t* p = NULL; p = (iFvsFile_t*)malloc(sizeof(iFvsFile_t)); if (p!=NULL) p->pf = NULL; return (FvsFile_t)p; }     void FileDestroy(FvsFile_t file) { iFvsFile_t* p = NULL; if (file==NULL) return; /* close file if it was still open */ (void)FileClose(file); p = (iFvsFile_t* )file; free(p); }     FvsBool_t FileIsOpen(const FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; return (p->pf!=NULL)?FvsTrue:FvsFalse; }         FvsError_t FileOpen(FvsFile_t file, const FvsString_t name, const FvsFileOptions_t flags) { iFvsFile_t* p = (iFvsFile_t*)file; char strFlags[10]; int nflags = (int)flags; /* close eventually already open file */ (void)FileClose(p);   strcpy(strFlags, ""); if ( (nflags & FvsFileRead)!=0 && (nflags & FvsFileWrite)!=0 ) strcat(strFlags, "rw"); else { if ((nflags & FvsFileRead)!=0) strcat(strFlags, "r"); if ((nflags & FvsFileWrite)!=0) strcat(strFlags, "w"); } strcat(strFlags, "b"); if ((nflags & FvsFileCreate)!=0) strcat(strFlags, "+"); p->pf = fopen(name, strFlags);   if (FileIsOpen(file)==FvsTrue)   return FvsOK; ShowMessage("hello");   return FvsFailure; }     FvsError_t FileClose(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; int nerr = -1; if (p->pf!=NULL) { nerr = fclose(p->pf); p->pf = NULL; } if (nerr==0) return FvsOK; return FvsFailure; }         FvsBool_t FileIsAtEOF(const FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; if (FileIsOpen(p)==FvsFalse) return FvsFalse; return (feof(p->pf)!=0)?FvsTrue:FvsFalse; }     FvsError_t FileCommit(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; return (fflush(p->pf)==0)?FvsOK:FvsFailure; }     FvsError_t FileSeekToBegin(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; if (FileIsOpen(p)==FvsTrue) { if (fseek(p->pf, 0, SEEK_SET)!=0) return FvsFailure; return FvsOK; } return FvsFailure; }     FvsError_t FileSeekToEnd(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; if (FileIsOpen(p)==FvsTrue) { if (fseek(p->pf, 0, SEEK_END)!=0) return FvsFailure; return FvsOK; } return FvsFailure; }     FvsUint_t FileGetPosition(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; if (FileIsOpen(p)==FvsTrue) return (FvsUint_t)ftell(p->pf); return 0; }     FvsError_t FileSeek(FvsFile_t file, const FvsUint_t position) { iFvsFile_t* p = (iFvsFile_t*)file; if (FileIsOpen(p)==FvsTrue) { if (fseek(p->pf, (long int)position, SEEK_SET)!=0) return FvsFailure; return FvsOK; } return FvsFailure; }     FvsUint_t FileRead(FvsFile_t file, FvsPointer_t data, const FvsUint_t length) { iFvsFile_t* p = (iFvsFile_t*)file; return (FvsUint_t)fread(data, (size_t)1, (size_t)length, p->pf); }     FvsUint_t FileWrite(FvsFile_t file, const FvsPointer_t data, const FvsUint_t length) { iFvsFile_t* p = (iFvsFile_t*)file; return (FvsUint_t)fwrite(data, (size_t)1, (size_t)length, p->pf); }     FvsByte_t FileGetByte(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; return (FvsByte_t)fgetc(p->pf); }     FvsWord_t FileGetWord(FvsFile_t file) { iFvsFile_t* p = (iFvsFile_t*)file; FvsWord_t w = (FvsWord_t)fgetc(p->pf); return (w<<8)+fgetc(p->pf); }     TCHAR BitmapFilename[256]; TCHAR outputFilename[256];     //***************end file *********************     void __fastcall TForm1::Button3Click(TObject *Sender) { Close();   } //---------------------------------------------------------------------------     //********************************************* typedef struct iFvsHistogram_t { FvsUint_t ptable[256]; /* 8 bit image histogram */ FvsInt_t ncount; /* number of points in the histogram */ FvsInt_t nmean; /* -1 = not computed yet */ FvsInt_t nvariance; /* -1 = not computed yet */ } iFvsHistogram_t;       FvsHistogram_t HistogramCreate() { iFvsHistogram_t* p = NULL; p = (iFvsHistogram_t*) (FvsHistogram_t)malloc(sizeof(iFvsHistogram_t));   if (p!=NULL) { /* reset the table */ HistogramReset(p); } return (FvsHistogram_t)p; }     void HistogramDestroy(FvsHistogram_t histogram) { iFvsHistogram_t* p = NULL; if (histogram==NULL) return; p = (iFvsHistogram_t*) histogram; free(p); }     FvsError_t HistogramReset(FvsHistogram_t hist) { iFvsHistogram_t* histogram = (iFvsHistogram_t*)hist; int i; for (i = 0; i < 256; i++) histogram->ptable[i] = 0; histogram->ncount = 0; histogram->nmean = -1; histogram->nvariance = -1; return FvsOK; }     FvsError_t HistogramCompute(FvsHistogram_t hist, const FvsImage_t image) { iFvsHistogram_t* histogram = (iFvsHistogram_t*)hist; FvsError_t nRet = FvsOK; FvsInt_t w = ImageGetWidth(image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitch = ImageGetPitch(image); uint8_t* p = ImageGetBuffer(image); FvsInt_t x, y;   if (histogram==NULL || p==NULL) return FvsMemory;   /* reset the histogram first */ nRet = HistogramReset(hist); /* now compute the histogram */ if (nRet==FvsOK) { FvsInt_t pos; for (y=0; y<h; y++) { pos = pitch*y; for (x=0; x<w; x++) { histogram->ptable[p[pos++]]++; } } histogram->ncount = w*h; }   return nRet; }     /* Get the mean of an histogram */ FvsByte_t HistogramGetMean(const FvsHistogram_t hist) { iFvsHistogram_t* histogram = (iFvsHistogram_t*)hist; FvsInt_t val, i; ShowMessage("hi"); val = histogram->nmean; if (val==-1) { val = 0; for (i = 1; i < 255; i++) val += i*histogram->ptable[i];   i = histogram->ncount; if (i>0) val = val/i; else val = 0;   histogram->nmean = val; } return (uint8_t)val; }     /* Get the variance of an histogram */ FvsUint_t HistogramGetVariance(const FvsHistogram_t hist) { iFvsHistogram_t* histogram = (iFvsHistogram_t*)hist; FvsInt_t val; FvsInt_t i; uint8_t mean;   val = histogram->nvariance; if (val==-1) { /* we need the mean value */ mean = HistogramGetMean(hist); val = 0; for (i = 0; i < 255; i++) val += histogram->ptable[i]*(i - mean)*(i - mean);   i = histogram->ncount; if (i>0) val = val/i; else val = 0;   histogram->nvariance = val; } return (FvsUint_t)val; }   //***************************************** //**NORMALISATION**************// //*************************************   FvsError_t ImageNormalize(FvsImage_t image, const FvsByte_t mean, const FvsUint_t variance) { FvsByte_t* p = ImageGetBuffer(image); FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitch = ImageGetPitch (image); FvsInt_t x,y; FvsFloat_t fmean, fsigma, fmean0, fsigma0, fgray; FvsFloat_t fcoeff = 0.0;   FvsHistogram_t histogram = NULL; FvsError_t nRet;   if (p==NULL) return FvsMemory; histogram = HistogramCreate(); if (histogram!=NULL) { ShowMessage("allo"); /* compute histogram */ nRet = HistogramCompute(histogram, image); if (nRet==FvsOK) { /* first compute sigma and mean */ fmean = (FvsFloat_t)HistogramGetMean(histogram); fsigma = sqrt((FvsFloat_t)HistogramGetVariance(histogram));   fmean0 = (FvsFloat_t)mean; fsigma0 = sqrt((FvsFloat_t)variance); if (fsigma>0.0) fcoeff = fsigma0/fsigma; for (y = 0; y < h; y++) for (x = 0; x < w; x++) { fgray = (FvsFloat_t)P(x,y); fgray = fmean0 + fcoeff*(fgray - mean); if (fgray < 0.0) fgray = 0.0; if (fgray > 255.0) fgray = 255.0; P(x,y)= (uint8_t)fgray; } } HistogramDestroy(histogram); } return nRet; } //**********************END NORMALISATION*************   //--------------------------------------------------------------------------- //*************************low passs filter **/////////// static FvsError_t FingerprintDirectionLowPass(FvsFloat_t* theta, FvsFloat_t* out, FvsInt_t nFilterSize, FvsInt_t w, FvsInt_t h) { FvsError_t nRet = FvsOK; FvsFloat_t* filter = NULL; FvsFloat_t* phix = NULL; FvsFloat_t* phiy = NULL; FvsFloat_t* phi2x = NULL; FvsFloat_t* phi2y = NULL; FvsInt_t fsize = nFilterSize*2+1; size_t nbytes = (size_t)(w*h*sizeof(FvsFloat_t)); FvsFloat_t nx, ny; FvsInt_t val; FvsInt_t i, j, x, y;   filter= (FvsFloat_t*)malloc((size_t)fsize*fsize*sizeof(FvsFloat_t)); phix = (FvsFloat_t*)malloc(nbytes); phiy = (FvsFloat_t*)malloc(nbytes); phi2x = (FvsFloat_t*)malloc(nbytes); phi2y = (FvsFloat_t*)malloc(nbytes);   if (filter==NULL || phi2x==NULL || phi2y==NULL || phix==NULL || phiy==NULL) nRet = FvsMemory; else { /* reset all fields to 0 */ memset(filter, 0, (size_t)fsize*fsize*sizeof(FvsFloat_t)); memset(phix, 0, nbytes); memset(phiy, 0, nbytes); memset(phi2x, 0, nbytes); memset(phi2y, 0, nbytes);   /* 4 - Compute a continuous field from theta */ for (y = 0; y < h; y++) for (x = 0; x < w; x++) { val = x+y*w; phix[val] = cos(theta[val]); phiy[val] = sin(theta[val]); } /* build the low-pass filter */ nx = 0.0; for (j = 0; j < fsize; j++) for (i = 0; i < fsize; i++) { filter[j*fsize+i] = (FvsFloat_t)(fsize - (abs(nFilterSize-i)+abs(nFilterSize-j))); nx += filter[j*fsize+i]; /* sum of coefficients */ } if (nx>1.0) { for (j = 0; j < fsize; j++) for (i = 0; i < fsize; i++) /* normalize the result */ filter[j*fsize+i] /= nx; } /* low-pass on the result arrays getting phi2 */ for (y = 0; y < h-fsize; y++) for (x = 0; x < w-fsize; x++) { nx = 0.0; ny = 0.0; for (j = 0; j < fsize; j++) for (i = 0; i < fsize; i++) { val = (x+i)+(j+y)*w; nx += filter[j*fsize+i]*phix[val]; ny += filter[j*fsize+i]*phiy[val]; } val = x+y*w; phi2x[val] = nx; phi2y[val] = ny; } /* we do not need phix, phiy anymore, delete them */ if (phix!=NULL) { free(phix); phix=NULL; } if (phiy!=NULL) { free(phiy); phiy=NULL; }   /* 5 - local ridge orientation -> theta */ for (y = 0; y < h-fsize; y++) for (x = 0; x < w-fsize; x++) { val = x+y*w; out[val] = atan2(phi2y[val], phi2x[val])*0.5; } }   if (phix!=NULL) free(phix); if (phiy!=NULL) free(phiy); if (phi2x!=NULL) free(phi2x); if (phi2y!=NULL) free(phi2y); if (filter!=NULL)free(filter);   return nRet; }   //*********************end low pass**************//// //*****************************************************   //**********************FLOAT**************/////////// /*########################################################################   ########################################################################*/       /*!   A fingerprint floating point field structure. */ typedef struct iFvsFloatField_t { FvsFloat_t *pimg; /* floating point field array */ FvsInt_t w; /* width of field */ FvsInt_t h; /* height of field */ FvsInt_t pitch; /* pitch */ } iFvsFloatField_t;     FvsFloatField_t FloatFieldCreate() { iFvsFloatField_t* p = NULL; p = ( iFvsFloatField_t* ) (FvsFloatField_t)malloc(sizeof(iFvsFloatField_t));   if (p!=NULL) { p->h = 0; p->w = 0; p->pitch = 0; p->pimg = NULL; }   return (FvsFloatField_t)p; }     void FloatFieldDestroy(FvsFloatField_t field) { iFvsFloatField_t* p = NULL;   if (field==NULL) return;   p = ( iFvsFloatField_t* )field; (void)FloatFieldSetSize(field, 0, 0); free(p); }     FvsError_t FloatFieldSetSize(FvsFloatField_t img, const FvsInt_t width, const FvsInt_t height) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; FvsError_t nRet = FvsOK; FvsInt_t newsize = (FvsInt_t)(width*height*sizeof(FvsFloat_t));   /* special case for zero size */ if (newsize==0) { if (field->pimg!=NULL) { free(field->pimg); field->pimg = NULL; field->w = 0; field->h = 0; field->pitch = 0; } return FvsOK; }   if ((FvsInt_t)(field->h*field->w*sizeof(FvsFloat_t)) != newsize) { free(field->pimg); field->w = 0; field->h = 0; field->pitch = 0; /* This allocates the amount of memory need for the field structure */ field->pimg = (FvsFloat_t*)malloc((size_t)newsize); }   if (field->pimg == NULL) nRet = FvsMemory; else { field->h = height; field->w = width; field->pitch = width; } return nRet; }     FvsError_t FloatFieldCopy(FvsFloatField_t destination, const FvsFloatField_t source) { iFvsFloatField_t* dest = (iFvsFloatField_t*)destination; iFvsFloatField_t* src = (iFvsFloatField_t*)source; FvsError_t nRet = FvsOK;   nRet = FloatFieldSetSize(dest, src->w, src->h);   if (nRet==FvsOK) memcpy(dest->pimg, src->pimg, src->h*src->w*sizeof(FvsFloat_t));   return nRet; }     FvsError_t FloatFieldClear(FvsFloatField_t img) { return FloatFieldFlood(img, 0.0); }     FvsError_t FloatFieldFlood(FvsFloatField_t img, const FvsFloat_t value) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; FvsError_t nRet = FvsOK; FvsInt_t i; if (field->pimg!=NULL) { for (i=0; i<field->h*field->w; i++) field->pimg[i] = value; } return nRet; }     /* set a pixel value in the picture */ void FloatFieldSetValue(FvsFloatField_t img, const FvsInt_t x, const FvsInt_t y, const FvsFloat_t val) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; int address = y * field->w + x; field->pimg[address] = val; }     /* This function returns the pixel for the x and y value */ FvsFloat_t FloatFieldGetValue(FvsFloatField_t img, const FvsInt_t x, const FvsInt_t y) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; /* position in array */ int address = y * field->pitch + x; return field->pimg[address]; }     /* returns a pointer to the field buffer */ FvsFloat_t* FloatFieldGetBuffer(FvsFloatField_t img) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; return field->pimg; }     /* retrieve width and height */ FvsInt_t FloatFieldGetWidth(const FvsFloatField_t img) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; return field->w; }     FvsInt_t FloatFieldGetHeight(const FvsFloatField_t img) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; return field->h; }     /* get the pitch pixel(x,y) pos is at x + y * pitch */ FvsInt_t FloatFieldGetPitch(const FvsFloatField_t img) { iFvsFloatField_t* field = (iFvsFloatField_t*)img; return field->pitch; }         //*********************     //*********ORIENTATION************////////   //****************************************************   FvsError_t FingerprintGetDirection(const FvsImage_t image, FvsFloatField_t field, const FvsInt_t nBlockSize, const FvsInt_t nFilterSize) { /* width & height of the input image */ FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitch = ImageGetPitch (image); FvsByte_t* p = ImageGetBuffer(image); FvsInt_t i, j, u, v, x, y; const temp = nBlockSize*2+1; FvsInt_t dx[100][100];// = new FvsInt_t[(nBlockSize*2+1)][(nBlockSize*2+1)]; FvsInt_t dy[100][100];// = new FvsInt_t[(nBlockSize*2+1)][(nBlockSize*2+1)]; FvsFloat_t nx, ny; FvsFloat_t* out; FvsFloat_t* theta = NULL; FvsError_t nRet = FvsOK;   /* (re-)allocate the output image */ nRet = FloatFieldSetSize(field, w, h); if (nRet!=FvsOK) return nRet; nRet = FloatFieldClear(field); if (nRet!=FvsOK) return nRet; out = FloatFieldGetBuffer(field);   /* allocate memory for the orientation values */ if (nFilterSize>0) { theta = (FvsFloat_t*)malloc(w * h * sizeof(FvsFloat_t)); if (theta!=NULL) memset(theta, 0, (w * h * sizeof(FvsFloat_t))); }   /* detect any allocation error */ if (out==NULL || (nFilterSize>0 && theta==NULL)) nRet = FvsMemory; else { /* 1 - divide the image in blocks */ for (y = nBlockSize+1; y < h-nBlockSize-1; y++) for (x = nBlockSize+1; x < w-nBlockSize-1; x++) { /* 2 - for the block centered at x,y compute the gradient */ for (j = 0; j < (temp); j++) for (i = 0; i < (temp); i++) { dx[i][j] = (FvsInt_t) (P(x+i-nBlockSize, y+j-nBlockSize) - P(x+i-nBlockSize-1, y+j-nBlockSize)); dy[i][j] = (FvsInt_t) (P(x+i-nBlockSize, y+j-nBlockSize) - P(x+i-nBlockSize, y+j-nBlockSize-1)); }   /* 3 - compute orientation */ nx = 0.0; ny = 0.0; for (v = 0; v < (nBlockSize*2+1); v++) for (u = 0; u < (nBlockSize*2+1); u++) { nx += 2 * dx[u][v] * dy[u][v]; ny += dx[u][v]*dx[u][v] - dy[u][v]*dy[u][v]; } /* compute angle (-pi/2 .. pi/2) */ if (nFilterSize>0) theta[x+y*w] = atan2(nx, ny); else out[x+y*w] = atan2(nx, ny)*0.5; } if (nFilterSize>0) nRet = FingerprintDirectionLowPass(theta, out, nFilterSize, w, h); }   if (theta!=NULL) free(theta); return nRet; }     //*****************************************************   //**********************END ORIENTATION****************///   //***************************************************   //****** get frequency************///////////       FvsError_t FingerprintGetFrequency(const FvsImage_t image, const FvsFloatField_t direction, FvsFloatField_t frequency) { /* width & height of the input image */ FvsError_t nRet = FvsOK; FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsInt_t pitchi = ImageGetPitch (image); FvsByte_t* p = ImageGetBuffer(image); FvsFloat_t* out; FvsFloat_t* freq; FvsFloat_t* orientation = FloatFieldGetBuffer(direction);   FvsInt_t x, y, u, v, d, k; size_t size;   if (p==NULL) return FvsMemory;   /* (re-)allocate the output image */ nRet = FloatFieldSetSize(frequency, w, h); if (nRet!=FvsOK) return nRet; (void)FloatFieldClear(frequency); freq = FloatFieldGetBuffer(frequency); if (freq==NULL) return FvsMemory;   /* allocate memory for the output */ size = w*h*sizeof(FvsFloat_t); out = (FvsFloat_t*)malloc(size); if (out!=NULL) { FvsFloat_t dir = 0.0; FvsFloat_t cosdir = 0.0; FvsFloat_t sindir = 0.0;   FvsInt_t peak_pos[BLOCK_L]; /* peak positions */ FvsInt_t peak_cnt; /* peak count */ FvsFloat_t peak_freq; /* peak frequence */ FvsFloat_t Xsig[BLOCK_L]; /* x signature */ FvsFloat_t pmin, pmax;   memset(out, 0, size); memset(freq, 0, size);   /* 1 - Divide G into blocks of BLOCK_W x BLOCK_W - (16 x 16) */ for (y = BLOCK_L2; y < h-BLOCK_L2; y++) for (x = BLOCK_L2; x < w-BLOCK_L2; x++) { /* 2 - oriented window of size l x w (32 x 16) in the ridge dir */ dir = orientation[(x+BLOCK_W2) + (y+BLOCK_W2)*w]; cosdir = -sin(dir); sindir = cos(dir);   /* 3 - compute the x-signature X[0], X[1], ... X[l-1] */ for (k = 0; k < BLOCK_L; k++) { Xsig[k] = 0.0; for (d = 0; d < BLOCK_W; d++) { u = (FvsInt_t)(x + (d-BLOCK_W2)*cosdir + (k-BLOCK_L2)*sindir); v = (FvsInt_t)(y + (d-BLOCK_W2)*sindir - (k-BLOCK_L2)*cosdir);   if (u<0) u = 0; else if (u>w-1) u = w-1; if (v<0) v = 0; else if (v>h-1) v = h-1; Xsig[k] += p[u + (v*pitchi)]; } Xsig[k] /= BLOCK_W; }     peak_cnt = 0;   pmax = pmin = Xsig[0]; for (k = 1; k < BLOCK_L; k++) { if (pmin>Xsig[k]) pmin = Xsig[k]; if (pmax<Xsig[k]) pmax = Xsig[k]; } if ((pmax - pmin)>64.0) { for (k = 1; k < BLOCK_L-1; k++) if ((Xsig[k-1] < Xsig[k]) && (Xsig[k] >= Xsig[k+1])) { peak_pos[peak_cnt++] = k; } } /* compute mean value */ peak_freq = 0.0; if (peak_cnt>=2) { for (k = 0; k < peak_cnt-1; k++) peak_freq += peak_pos[k+1]-peak_pos[k]; peak_freq /= peak_cnt-1; } /* 4 - must lie in a certain range [1/3, 1/25] */ if (peak_freq > 25.0) out[x+y*w] = 0.0; else if (peak_freq < 3.0) out[x+y*w] = 0.0; else out[x+y*w] = 1.0/peak_freq; } /* 5 - interpolated ridge period for the unknown points */ /*   for (y = BLOCK_L2; y < h-BLOCK_L2; y++)   for (x = BLOCK_L2; x < w-BLOCK_L2; x++)   {   if (out[x+y*w]<EPSILON)   {   if (out[x+(y-1)*w]>EPSILON)   {   out[x+(y*w)] = out[x+(y-1)*w];   }   else   {   if (out[x-1+(y*w)]>EPSILON)   out[x+(y*w)] = out[x-1+(y*w)];   }   }   } */ /* 6 - Inter-ridges distance change slowly in a local neighbourhood */ for (y = BLOCK_L2; y < h-BLOCK_L2; y++) for (x = BLOCK_L2; x < w-BLOCK_L2; x++) { k = x + y*w; peak_freq = 0.0; for ( v = -LPSIZE; v <= LPSIZE; v++) for ( u = -LPSIZE; u <= LPSIZE; u++) peak_freq += out[(x+u)+(y+v)*w]; freq[k] = peak_freq*LPFACTOR; /* freq[k] = out[k];*/ } free(out); } return nRet; }     //********** fin de calcule de la fraquence *****************//////   //****************** calcule le mask****////////////////   FvsError_t FingerprintGetMask(const FvsImage_t image, /*@unused@*/ const FvsFloatField_t direction, const FvsFloatField_t frequency, FvsImage_t mask) { FvsError_t nRet = FvsOK; FvsFloat_t freqmin = 1.0 / 25; FvsFloat_t freqmax = 1.0 / 3;   /* width & height of the input image */ FvsInt_t w = ImageGetWidth (image); FvsInt_t h = ImageGetHeight(image); FvsByte_t* out; FvsInt_t pitchout; FvsInt_t pos, posout, x, y; FvsFloat_t* freq = FloatFieldGetBuffer(frequency);   if (freq==NULL) return FvsMemory;   /* TODO: add sanity checks for the direction and mask */ nRet = ImageSetSize(mask, w, h); if (nRet==FvsOK) nRet = ImageClear(mask); out = ImageGetBuffer(mask); if (out==NULL) return FvsMemory; if (nRet==FvsOK) { pitchout = ImageGetPitch(mask);   for (y = 0; y < h; y++) for (x = 0; x < w; x++) { pos = x + y * w; posout = x + y * pitchout; out[posout] = 0; if (freq[pos] >= freqmin && freq[pos] <= freqmax) { /* out[posout] = (uint8_t)(10.0/freq[pos]);*/ out[posout] = 255; } } /* fill in the holes */ for (y = 0; y < 4; y++) (void)ImageDilate(mask); /* remove borders */ for (y = 0; y < 12; y++) (void)ImageErode(mask); } return nRet; } //***********************fin de mask*******************//   //******************************************************   //*****************************fonction suppl pr calcule filtre de gabor*****//   inline FvsFloat_t EnhanceGabor(FvsFloat_t x, FvsFloat_t y, FvsFloat_t phi, FvsFloat_t f) { static FvsFloat_t dy2 = 1.0/(4.0*4.0); static FvsFloat_t dx2 = 1.0/(4.0*4.0); FvsFloat_t x2, y2; phi += M_PI/2; x2 = -x*sin(phi) + y*cos(phi); y2 = x*cos(phi) + y*sin(phi); return exp(-0.5*(x2*x2*dx2 + y2*y2*dy2))*cos(2*M_PI*x2*f); }       static FvsError_t ImageEnhanceFilter ( FvsImage_t normalized, const FvsImage_t mask, const FvsFloat_t* orientation, const FvsFloat_t* frequence ) { FvsInt_t Wg2 = 5; /* from -5 to 5 are 11 */ FvsInt_t i,j, u,v; FvsError_t nRet = FvsOK; FvsImage_t enhanced = NULL;   FvsInt_t w = ImageGetWidth (normalized); FvsInt_t h = ImageGetHeight(normalized); FvsInt_t pitchG = ImageGetPitch (normalized); FvsByte_t* pG = ImageGetBuffer(normalized); FvsFloat_t sum, f, o;     enhanced = ImageCreate(); if (enhanced==NULL || pG==NULL) return FvsMemory; if (nRet==FvsOK) nRet = ImageSetSize(enhanced, w, h); if (nRet==FvsOK) { FvsInt_t pitchE = ImageGetPitch (enhanced); FvsByte_t* pE = ImageGetBuffer(enhanced); if (pE==NULL) return FvsMemory; (void)ImageClear(enhanced); for (j = Wg2; j < h-Wg2; j++) for (i = Wg2; i < w-Wg2; i++) { if (ImageGetPixel(mask, i, j)!=0) { sum = 0.0; o = orientation[i+j*w]; f = frequence[i+j*w]; for (v = -Wg2; v <= Wg2; v++) for (u = -Wg2; u <= Wg2; u++) { sum += EnhanceGabor((FvsFloat_t)u,(FvsFloat_t)v,o,f)* pG[(i-u)+(j-v)*pitchG]; } /* printf("%6.1f ", sum);*/ if (sum>255.0) sum = 255.0; if (sum<0.0) sum = 0.0; pE[i+j*pitchE] = (uint8_t)sum; } } nRet = ImageCopy(normalized, enhanced); } (void)ImageDestroy(enhanced); return nRet; }           //*****************************end fonction supplimentaire pour calculer le filtre de gabor*******/   //************************export import image**********// static void ExportImage(const FvsImage_t image, const FvsString_t filename) { FvsFile_t file = FileCreate(); if (file!=NULL) { //AfxMessageBox(CString("exporting resulting image to ")+CString(filename)); (void)FileOpen (file, filename, FvsFileWrite); (void)BitmapExport(file, image); (void)FileClose (file); FileDestroy(file); } }   static void ImportImage(FvsImage_t image, const FvsString_t filename) { FvsFile_t file = FileCreate(); if (file!=NULL) { /// MessageBox(CString("Opening file  ")+CString(filename)); (void)FileOpen (file, filename, FvsFileRead); (void)AutoImport(file, image); (void)FileClose (file); FileDestroy(file); } }   //**************************************************   //************* le filtre de gabor********************   FvsError_t ImageEnhanceGabor(FvsImage_t image, const FvsFloatField_t direction, const FvsFloatField_t frequency, const FvsImage_t mask) { FvsError_t nRet = FvsOK; FvsFloat_t * image_orientation = FloatFieldGetBuffer(direction); FvsFloat_t * image_frequence = FloatFieldGetBuffer(frequency);   if (image_orientation==NULL || image_frequence==NULL) return FvsMemory;   nRet = ImageEnhanceFilter(image, mask, image_orientation, image_frequence); return nRet; }   //*****************end filtre de gabor*********************   void __fastcall TForm1::Button4Click(TObject *Sender) { char *input; char *output; int i,j, pix; FvsImage_t mask; FvsImage_t image; FvsFloatField_t direction; FvsFloatField_t frequency; //enhancement *enh; // enh->m_prog.SetRange32(0,100); /* check if all parameters are there */ /* if (argc!=3)   {   printf("Usage: fvs input.bmp output.bmp\n");   return -1;   } */ mask = ImageCreate(); image = ImageCreate(); direction = FloatFieldCreate(); frequency = FloatFieldCreate();     if (mask!=NULL && image!=NULL && direction!=NULL && frequency!=NULL) {   // remplissage de la matrice emp associée à l'image empreinte         ImportImage(image, input);   /* normalize the image */ (void)ImageNormalize(image, (FvsByte_t)128, (FvsUint_t)128*128);     (void)FingerprintGetDirection(image, direction, 7, 2);     (void)FingerprintGetFrequency(image, direction, frequency);     (void)FingerprintGetMask(image, direction, frequency, mask);   (void)ImageEnhanceGabor(image, direction, frequency, mask);     ExportImage(image, output);     }     } //---------------------------------------------------------------------------

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merci

Bonjour,

Citation:

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Envoyé par samali

lecture d'adresse 00000001

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c'est typique de l'accès à un membre à partir d'un pointeur nul (ici ce membre est d'offset 1, il suit a priori un booléen/char/enum)

si vous êtes sous Linux avec un proc Intel exécuter le via valgrind

sinon de toute façon les debuggers sont faits pour être utilisés

salut, merci de m'avoir répondu , mais toujours c'est le même problème alors je vous ai envoyé le programme qui consiste a faire rehausser une empreinte digitale ok mon problème c'est lorsque j'essaye d' afficher il me dit
violation d'adresse 7C911278 dans le module 'ntdll.dll'. lecture d'adresse 00000001 j'ai essayé avec le débugger mais sans résultat merci de me corriger ce problème

je ne peux pas compiler ce programme, il faut que vous appreniez à débugger

compilez en mode debug si cela n'est pas le cas, lancer l'exécution sous debugger, lorsque cela s'arrête à cause de l'erreur remonter la pile pour retomber dans votre code (apparemment l'erreur se produit dans une dll), regardez la valeur des variables y compris this , remonter encore si this est null pour voir d'où cela vient etc