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2 changed files with 33 additions and 10 deletions

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+24 -4
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@@ -37,20 +37,28 @@ GrayScaleImageSeries *readImages(const char *path)
{ {
FILE* file = fopen(path, "rb"); FILE* file = fopen(path, "rb");
// TODO open binary file from file name // TODO open binary file from file name
GrayScaleImageSeries *series = NULL; GrayScaleImageSeries *series = malloc(sizeof(GrayScaleImageSeries));
GrayScaleImage *image = malloc(sizeof(GrayScaleImage));
series->images = image;
if(!(checkString(file))) if(!(checkString(file)))
return NULL; return NULL;
unsigned int* imageCount = &(series->count); // sets a pointer for int variable count in struct unsigned int* imageCount = &(series->count); // sets a pointer for int variable count in struct
printf("%d", *imageCount);
setParameters(file, imageCount, &(series->images->width), &(series->images->height)); unsigned int* width = &(series->images->width);
//printf("%d", *width);
setParameters(file, imageCount, width, &(series->images->height));
printf("BP3\n");
allocateMemory(series, *imageCount, series->images->width, series->images->height); allocateMemory(series, *imageCount, series->images->width, series->images->height);
printf("BP4\n");
//allocateMemoryLabels(); //allocateMemoryLabels();
for(int i = (series->images->width * series->images->height) - 1; i <= 0; i--) for(int i = (series->images->width * series->images->height) - 1; i >= 0; i--)
{ {
fread(&(series->images->buffer[i]), sizeof(GrayScalePixelType), 1, file); fread(&(series->images->buffer[i]), sizeof(GrayScalePixelType), 1, file);
} }
fclose(file); fclose(file);
printf("BP5\n");
return series; return series;
} }
@@ -64,16 +72,28 @@ void clearSeries(GrayScaleImageSeries *series)
} }
series->images = NULL; series->images = NULL;
series->labels = NULL; series->labels = NULL;
free(series);
series = NULL;
} }
void setParameters(FILE* file, unsigned int* imageCount, unsigned int* width, unsigned int* height) { // sets the parameters void setParameters(FILE* file, unsigned int* imageCount, unsigned int* width, unsigned int* height) { // sets the parameters
printf("BP1");
char buffer[3]; char buffer[3];
fseek(file, 27, SEEK_SET); fseek(file, 27, SEEK_SET);
fread(buffer, 1, 3, file); fread(buffer, 1, 3, file);
*imageCount = (int) buffer[0]; *imageCount = (int) buffer[0];
*width = (int) buffer[1]; *width = (int) buffer[1];
*height = (int) buffer[2]; *height = (int) buffer[2];
printf("BP2\n");
printf("%d\n", *imageCount);
printf("%d\n", *width);
printf("%d\n", *height);
// TODO allocate memory for labels array (in imageInput.h) -> Done in allocate Memory // TODO allocate memory for labels array (in imageInput.h) -> Done in allocate Memory
// TODO read from file and write in 2d arry, write label in labels array, repeat for imageCount -> done in readImages // TODO read from file and write in 2d arry, write label in labels array, repeat for imageCount -> done in readImages
+9 -6
View File
@@ -108,11 +108,17 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
Matrix multiply(const Matrix matrix1, const Matrix matrix2) Matrix multiply(const Matrix matrix1, const Matrix matrix2)
{ {
Matrix result; Matrix result;
result.rows = 0;
result.cols = 0;
result.buffer = NULL;
if (matrix1.cols != matrix2.rows) {
return result;
}
result.rows = matrix1.rows; result.rows = matrix1.rows;
result.cols = matrix2.cols; result.cols = matrix2.cols;
if (matrix1.rows == matrix2.cols) {
result.buffer = malloc(result.rows * result.cols * sizeof(MatrixType)); result.buffer = malloc(result.rows * result.cols * sizeof(MatrixType));
for(int i = 0; i < result.rows; i++) { for(int i = 0; i < result.rows; i++) {
@@ -121,11 +127,8 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
for(int k = 0; k < matrix1.cols; k++) { for(int k = 0; k < matrix1.cols; k++) {
value += matrix1.buffer[i * matrix1.cols + k] * matrix2.buffer[k * matrix2.cols + j]; value += matrix1.buffer[i * matrix1.cols + k] * matrix2.buffer[k * matrix2.cols + j];
} }
result.buffer[i * matrix1.cols + j] = value; result.buffer[i * result.cols + j] = value;
} }
} }
return result; return result;
} }
printf("Die angegebenen Matrizen haben keine passenden Dimensionen für die Multiplikation");
return result;
}