Bisschen weiter

imageInput.c

@@ -11,12 +11,63 @@
 // TODO Vervollständigen Sie die Funktion readImages unter Benutzung Ihrer Hilfsfunktionen
 GrayScaleImageSeries *readImages(const char *path)
 {
-    GrayScaleImageSeries *series = NULL;
-    
+    FILE *file = fopen(path, "rb");
+    if (!file) return NULL;
+
+    fseek(file, strlen("__info2_image_file_format__"), SEEK_SET);
+
+    unsigned short anzahlBilder, width, height;
+    fread(&anzahlBilder, sizeof(unsigned short), 1, file);
+    fread(&width, sizeof(unsigned short), 1, file);
+    fread(&height, sizeof(unsigned short), 1, file);
+
+    GrayScaleImageSeries *series = malloc(sizeof(GrayScaleImageSeries));
+    if (!series) { 
+        fclose(file); 
+        return 0;
+     }
+
+    series->count = anzahlBilder;
+    series->images = malloc(sizeof(GrayScaleImage) * anzahlBilder);
+    series->labels = malloc(sizeof(unsigned char) * anzahlBilder);
+
+    int pixelCount = width * height;
+
+    for (unsigned int i = 0; i < anzahlBilder; i++)
+    {
+        series->images[i].width = width;
+        series->images[i].height = height;
+        series->images[i].buffer = malloc(pixelCount);
+
+        fread(series->images[i].buffer, 1, pixelCount, file);
+        fread(&series->labels[i], 1, 1, file);
+    }
+
+    fclose(file);
     return series;
 }
 
+
 // TODO Vervollständigen Sie die Funktion clearSeries, welche eine Bildserie vollständig aus dem Speicher freigibt
 void clearSeries(GrayScaleImageSeries *series)
 {
-}
+    if (series == NULL)
+        return 0;
+
+   
+    for (unsigned int i = 0; i < series->count; i++)
+    {
+        free(series->images[i].buffer);
+        series->images[i].buffer = NULL;
+    }
+
+    
+    free(series->images);
+    free(series->labels);
+
+    series->images = NULL;
+    series->labels = NULL;
+
+    
+    free(series);
+}

matrix.c

@@ -4,32 +4,81 @@
 
 // TODO Matrix-Funktionen implementieren
 
+
 Matrix createMatrix(unsigned int rows, unsigned int cols)
 {
-    
+    Matrix matrix;
+    matrix.rows = rows;
+    matrix.cols = cols;
+    if(rows == 0 || cols == 0){
+        matrix.werte = NULL;
+        return matrix;
+        
+    }
+    matrix.werte = malloc(rows * cols * sizeof(MatrixType));
+    return matrix;
 }
 
 void clearMatrix(Matrix *matrix)
 {
-    
+    //speicher freimachen:
+    free(matrix->werte);
 }
 
 void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
+    matrix.werte[rowIdx * matrix.cols + colIdx] = value;
     
 }
 
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
-    
+
+    return matrix.werte[rowIdx * matrix.cols + colIdx];
+
 }
 
 Matrix add(const Matrix matrix1, const Matrix matrix2)
 {
-    
+    if(matrix1.rows != matrix2.rows || matrix1.cols != matrix2.cols){
+        //nicht sicher
+        
+
+    }
+    Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix1.cols);
+
+    for(int reihe = 0; reihe < matrix1.rows; reihe++){
+        for(int spalte = 0; spalte < matrix1.cols; spalte++){
+            MatrixType wertM1 = getMatrixAt(matrix1, reihe, spalte);
+            MatrixType wertM2 = getMatrixAt(matrix2, reihe, spalte);
+            setMatrixAt(wertM1 + wertM2, ergebnisMatrix, reihe, spalte);
+
+        }
+    }
+    return ergebnisMatrix;
+
 }
 
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {
-    
+    Matrix ergebnisMatrix = createMatrix(matrix1.rows, matrix2.cols);
+    for(int i = 0; i < matrix1.rows; i++){
+        for(int j = 0; j < matrix2.cols; j++){
+            MatrixType summe = 0;
+            
+            for(int l = 0; l < matrix1.cols; l++){
+                summe += getMatrixAt( matrix1, i, l) * getMatrixAt(matrix2, l, j);
+
+
+
+            }
+            setMatrixAt(summe, ergebnisMatrix, i, j);
+
+
+        }
+
+
+    }
+    return ergebnisMatrix;
+
 }

matrix.h

@@ -6,8 +6,14 @@
 typedef float MatrixType;
 
 // TODO Matrixtyp definieren
+typedef struct {
+    unsigned int rows;
+    unsigned int cols;
+    float *werte;
 
 
+} Matrix;
+
 Matrix createMatrix(unsigned int rows, unsigned int cols);
 void clearMatrix(Matrix *matrix);
 void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx);