forked from freudenreichan/info2Praktikum-NeuronalesNetz
Angefangen bildanzahl und groese aus binaerdatei zu lesen
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96c6871ea3
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47
imageInput.c
47
imageInput.c
@ -5,12 +5,59 @@
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#define BUFFER_SIZE 100
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#define BUFFER_SIZE 100
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#define FILE_HEADER_STRING "__info2_image_file_format__"
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#define FILE_HEADER_STRING "__info2_image_file_format__"
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#define FILE_HEADER_SIZE (sizeof(FILE_HEADER_STRING)-1)
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// TODO Implementieren Sie geeignete Hilfsfunktionen für das Lesen der Bildserie aus einer Datei
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// TODO Implementieren Sie geeignete Hilfsfunktionen für das Lesen der Bildserie aus einer Datei
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FILE *checkFile(const char *path)
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{
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FILE *datei = fopen(path,"rb");
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if (datei == NULL)
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{
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perror("Datei konnte nicht geoeffnet werden");
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return NULL;
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}
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char buffer[FILE_HEADER_SIZE+1];
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if (fread(buffer,1,FILE_HEADER_SIZE,datei)!=FILE_HEADER_SIZE)
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{
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perror("Header konnte nicht eingelessen werden");
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fclose(datei);
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return NULL;
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}
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buffer[FILE_HEADER_SIZE] = '\0';
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if (strcmp(buffer,FILE_HEADER_STRING)!=0)
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{
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printf("Falscher Dateikopf");
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//printf("\n%s",buffer);
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//printf("\n%s",FILE_HEADER_STRING);
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//printf("\n%d",strcmp(buffer,FILE_HEADER_STRING));
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fclose(datei);
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return NULL;
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}
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return datei;
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}
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// TODO Vervollständigen Sie die Funktion readImages unter Benutzung Ihrer Hilfsfunktionen
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// TODO Vervollständigen Sie die Funktion readImages unter Benutzung Ihrer Hilfsfunktionen
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GrayScaleImageSeries *readImages(const char *path)
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GrayScaleImageSeries *readImages(const char *path)
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{
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{
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FILE *datei = checkFile(path);
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if (datei==NULL)
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{
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return NULL;
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}
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unsigned short image_count, width, height;
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fread(&image_count,1,sizeof(unsigned short),datei);
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fread(&width,1,sizeof(unsigned short),datei);
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fread(&height,1,sizeof(unsigned short),datei);
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//printf("%u Bilder und %u mal %u",image_count,width,height);
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fclose(datei);
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GrayScaleImageSeries *series = NULL;
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GrayScaleImageSeries *series = NULL;
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return series;
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return series;
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@ -19,5 +19,5 @@ typedef struct
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GrayScaleImageSeries *readImages(const char *path);
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GrayScaleImageSeries *readImages(const char *path);
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void clearSeries(GrayScaleImageSeries *series);
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void clearSeries(GrayScaleImageSeries *series);
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FILE *checkFile(const char *path);
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#endif
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#endif
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7
main.c
7
main.c
@ -1,11 +1,13 @@
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdlib.h>
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#include "imageInput.h"
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#include "imageInput.h"
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#include "mnistVisualization.h"
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//#include "mnistVisualization.h"
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#include "neuralNetwork.h"
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//#include "neuralNetwork.h"
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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readImages("mnist_test.info2");
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/*
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const unsigned int windowWidth = 800;
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const unsigned int windowWidth = 800;
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const unsigned int windowHeight = 600;
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const unsigned int windowHeight = 600;
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@ -65,4 +67,5 @@ int main(int argc, char *argv[])
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}
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}
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return exitCode;
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return exitCode;
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*/
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}
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}
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