GrayScaleImageSeries

imageInput.c

@@ -48,6 +48,83 @@ static int readHeader(FILE *file, unsigned int *count, unsigned int *width, unsi
 GrayScaleImageSeries *readImages(const char *path)
 {
     GrayScaleImageSeries *series = NULL;
+    FILE *file = NULL;
+    unsigned int count = 0;
+    unsigned int width = 0;
+    unsigned int height = 0;
+
+    file = fopen(path, "rb");
+    if (file == NULL)
+    {
+        return NULL;
+    }
+
+    if (!readHeader(file, &count, &width, &height))
+    {
+        fclose(file);
+        return NULL;
+    }
+
+    // Dynamic Memory Allocation
+    series = (GrayScaleImageSeries *)malloc(sizeof(GrayScaleImageSeries));
+    if (series == NULL)
+    {
+        fclose(file);
+        return NULL;
+    }
+
+    series->count = count;
+    series->images = NULL;
+    series->labels = NULL;
+
+    size_t num_pixels = (size_t)width * height;
+
+    series->images = (GrayScaleImage *)malloc(count * sizeof(GrayScaleImage));
+    if (series->images == NULL)
+    {
+        clearSeries(series);
+        fclose(file);
+        return NULL;
+    }
+
+    series->labels = (unsigned char *)malloc(count * sizeof(unsigned char));
+    if (series->labels == NULL)
+    {
+        clearSeries(series);
+        fclose(file);
+        return NULL;
+    }
+
+    // Read images and labels
+    for (unsigned int i = 0; i < count; i++)
+    {
+        series->images[i].width = width;
+        series->images[i].height = height;
+
+        series->images[i].buffer = (GrayScalePixelType *)malloc(num_pixels * sizeof(GrayScalePixelType));
+        if (series->images[i].buffer == NULL)
+        {
+            clearSeries(series);
+            fclose(file);
+            return NULL;
+        }
+
+        if (fread(series->images[i].buffer, sizeof(GrayScalePixelType), num_pixels, file) != num_pixels)
+        {
+            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;
 }