generated from freudenreichan/info2Praktikum-NeuronalesNetz
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98cbfefedf |
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+26
-23
@@ -7,36 +7,39 @@
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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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// 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 setParameters(const char buffer[], unsigned int* imageCount, int* width, int* height);
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int checkString (FILE *file){ //Checks if String at the start of File equals expected Format (0 for wrong 1 for right)
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void allocateMemory(GrayScaleImageSeries *s, const int imageCount, const int width, const int height);
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if (file == NULL){ //returns 0 for empty file
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return 0;
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}
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char expectedString[] = FILE_HEADER_STRING;
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char actualString[BUFFER_SIZE];
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rewind(file);
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size_t bytesRead = fread(actualString, 1,27 , file); //Stores Bytes of start of File to actualString
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if (bytesRead != 27){
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return 0;} //Returns 0 if File is to short
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actualString[27] = '\0';
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if (strcmp(actualString, expectedString) != 0){
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return 0;
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}
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else{
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return 1;
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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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GrayScaleImageSeries *series = NULL;
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GrayScaleImageSeries *series = NULL;
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// hier Niko Stuff
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// create char array buffer with bytes containing initialization information
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// TODO some kind of logic to get correct address in binary file
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char initBuffer[3];
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/*
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int readBytes = fread(initBuffer, 1, 3, //file);
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*/
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unsigned int* imageCount = &(series->count); // sets a pointer for int variable count in struct
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setParameters(initBuffer, imageCount, series->images->width, series->images->height);
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allocateMemory(*imageCount, series->images->width, series->images->height);
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return series;
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return series;
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}
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}
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void setParameters(const char buffer[], unsigned int* imageCount, int* width, int* height) { // sets the parameters
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*imageCount = (int) buffer[0];
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*width = (int) buffer[1];
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*height = (int) buffer[2];
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}
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void allocateMemory(GrayScaleImageSeries s, const int imageCount, const int width, const int height) {
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for (int i = 0; i < imageCount; i++) {
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s->images[i].buffer = (unsigned char *) malloc(width * height * sizeof(unsigned char)); // allocates memory for every image in the series
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}
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}
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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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@@ -23,8 +23,8 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
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void clearMatrix(Matrix *matrix)
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void clearMatrix(Matrix *matrix)
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{
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{
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free(matrix->buffer);
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free(matrix.buffer);
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matrix->buffer = NULL;
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matrix.buffer = NULL;
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}
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}
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void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
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@@ -55,7 +55,8 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
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Matrix MatrixErgebnis = createMatrix(matrix1.rows, matrix1.cols); //Creating Result Matrix
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Matrix MatrixErgebnis = createMatrix(matrix1.rows, matrix1.cols); //Creating Result Matrix
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if(matrix1.cols != matrix2.cols || matrix1.rows != matrix2.rows){
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if(matrix1.cols != matrix2.cols || matrix1.rows != matrix2.rows){
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printf("Matrix dimensions do not match\n"); //Error Message if dimensions of Input Matrixes are not identical
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printf("Matrix dimensions do not match\n"); //Error Message if dimensions of Input Matrixes are not identical
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clearMatrix(&MatrixErgebnis);
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clearMatrix(MatrixErgebnis);
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MatrixErgebnis = NULL;
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return MatrixErgebnis;
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return MatrixErgebnis;
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}
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}
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else{
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else{
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