Revert "ImageInput Funktionen implementiert"

This reverts commit 03d707108a.
2026-11-11 07:59:20 +01:00
1 changed files with 2 additions and 124 deletions
@@ -6,139 +6,17 @@
 #define BUFFER_SIZE 100
 #define FILE_HEADER_STRING "__info2_image_file_format__"
 // TODO Implementieren Sie geeignete Hilfsfunktionen für das Lesen der Bildserie aus einer Datei
 // TODO Vervollständigen Sie die Funktion readImages unter Benutzung Ihrer Hilfsfunktionen
 static int checkFileHeader(FILE *file)
 {
    char buffer[BUFFER_SIZE] = {0};
    size_t length = strlen(FILE_HEADER_STRING);
    if (length >= BUFFER_SIZE)
    {
        return 0;
    }
    if (fread(buffer, 1, length, file) != length)
    {
        return 0;
    }
    return strcmp(buffer, FILE_HEADER_STRING) == 0;
 }
 GrayScaleImageSeries *readImages(const char *path)
 {
    GrayScaleImageSeries *series = NULL;
-FILE *file = fopen(path, "rb");
+    return series;
 if (file == NULL) {
    return NULL;
 }
 if (!checkFileHeader(file))
 {
    fclose(file);
    return NULL;
 }
 unsigned short numberOfImages;
 unsigned short width;
 unsigned short height;
 if (fread(&numberOfImages, sizeof(unsigned short), 1, file) != 1 ||
    fread(&width, sizeof(unsigned short), 1, file) != 1 ||
    fread(&height, sizeof(unsigned short), 1, file) != 1)
 {
    fclose(file);
    return NULL;
 }
 if (numberOfImages == 0 || width == 0 || height == 0)
 {
    fclose(file);
    return NULL;
 }
 GrayScaleImageSeries *series =
    calloc(1, sizeof(GrayScaleImageSeries));
 if (series == NULL)
 {
    fclose(file);
    return NULL;
 }
 series->count = numberOfImages;
 series->images =
    calloc(numberOfImages, sizeof(GrayScaleImage));
 series->labels =
    calloc(numberOfImages, sizeof(unsigned char));
    if (series->images == NULL || series->labels == NULL)
 {
    clearSeries(series);
    fclose(file);
    return NULL;
 }
 for (unsigned int i = 0; i < numberOfImages; i++)
 {
    GrayScaleImage *image = &series->images[i];
    image->width = width;
    image->height = height;
    image->buffer = malloc(
        (size_t)width * height * sizeof(GrayScalePixelType)
    );
    if (image->buffer == NULL)
    {
        clearSeries(series);
        fclose(file);
        return NULL;
    }
    if (fread(image->buffer,
              sizeof(GrayScalePixelType),
              (size_t)width * height,
              file) != (size_t)width * height)
    {
        clearSeries(series);
        fclose(file);
        return NULL;
    }
    if (fread(&series->labels[i],
              sizeof(unsigned char),
              1,
              file) != 1)
    {
        clearSeries(series);
        fclose(file);
        return NULL;
    }
 }
 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;
    }
    if (series->images != NULL)
    {
        for (unsigned int i = 0; i < series->count; i++)
        {
            free(series->images[i].buffer);
        }
    }
    free(series->images);
    free(series->labels);
    free(series);
 }