generated from freudenreichan/info2Praktikum-NeuronalesNetz
Fertigstellen von matrix.c und Hilfsfunktion von input.c
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imageInput.c
38
imageInput.c
@ -8,24 +8,32 @@
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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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void helpFunction
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static void readPictureData(const char *path,const short ptrPicturesCount, const short ptrPictureWidth, const short ptrPictureHeigth)
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{
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{
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GrayScalePixelType *bufferRead;
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unsigned int header = strlen(FILE_HEADER_STRING);
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GrayScalePixelType *bufferWrite;
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bufferRead = fopen(*path, "rb");
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unsigned char header = strlen(FILE_HEADER_STRING);
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bufferWrite = createMatrix(1,header + 3);
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FILE *file = fopen(path,"rb");
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if (file == NULL){
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perror("failed open file");
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return;
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}
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fread(bufferWrite,sizeof(GrayScalePixelType),, bufferRead);
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fseek(file, header, SEEK_SET);
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pictures = *bufferRead + header;
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fread(ptrPicturesCount, sizeof(unsigned short), 1, file);
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fread(ptrPictureWidth, sizeof(unsigned short), 1, file);
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fread(ptrPictureHeight, sizeof(unsigned short), 1, file);
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fclose(file);
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}
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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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unsigned short picturesCount, pictureWidth, pictureHeight;
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Matrix labels = creatmatrix(1,picturesCount);
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Matrix images = creatmatrix(1,picturesCount);
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@ -37,4 +45,18 @@ GrayScaleImageSeries *readImages(const char *path)
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// TODO Vervollständigen Sie die Funktion clearSeries, welche eine Bildserie vollständig aus dem Speicher freigibt
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// TODO Vervollständigen Sie die Funktion clearSeries, welche eine Bildserie vollständig aus dem Speicher freigibt
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void clearSeries(GrayScaleImageSeries *series)
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void clearSeries(GrayScaleImageSeries *series)
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{
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{
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}
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MatrixChar createMatrix(unsigned int rows, unsigned int cols)
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{
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if(rows <= 0 || cols <= 0){
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Matrix matrix = { 0 , 0 , UNDEFINED_MATRIX_VALUE };
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return matrix;
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}
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MatrixChar matrix = { rows , cols };
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matrix.buffer = malloc((sizeof(char)*rows*cols));
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return matrix;
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}
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}
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@ -17,6 +17,12 @@ typedef struct
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unsigned int count;
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unsigned int count;
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} GrayScaleImageSeries;
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} GrayScaleImageSeries;
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typedef struct{
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unsigned int rows;
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unsigned int cols;
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MatrixType *buffer;
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}MatrixChar;
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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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