imageInput now passes tests but still needs to be cleaned up

This commit is contained in:
Jonas Hofmann 2025-11-21 01:51:26 +01:00
parent 14569ad308
commit d7fb02e6b4
2 changed files with 55 additions and 24 deletions

View File

@ -6,13 +6,23 @@
#define BUFFER_SIZE 100
#define FILE_HEADER_STRING "__info2_image_file_format__"
// Tests passed
// Rethink logic
// Cleanup Programm
// merge with others to test in entirity
// Funktionen müssen noch auf Teilfunktionen
// übersichtlich aufgeteilt werden!
// TODO Implementieren Sie geeignete Hilfsfunktionen für das Lesen der Bildserie aus einer Datei
//void setupMemory();
unsigned int readStatusInfo(FILE *source, char *const headerString, unsigned int *const imageCount, unsigned int *const imageWidth, unsigned int *const imageHeight, int const amountToRead);
void readImagedata(FILE *source, unsigned char *const imageBuffer, unsigned char *const labelBuffer,int const imageCount ,int const amountToRead);
void readImagedata(FILE *source, GrayScaleImageSeries *series, int const amountToRead);
unsigned int checkHeaderString(char header[]);
@ -50,36 +60,46 @@ GrayScaleImageSeries *readImages(const char *path)
}
i++;
} while (curChar != EOF);
// print entire source char by char
*/
series = calloc(sizeof(unsigned int) + 3* sizeof(headerString), amountOfStatusInfoToRead);
series->images = calloc(2*sizeof(unsigned int) + sizeof(headerString), amountOfStatusInfoToRead);
numberOfBytesToRead = readStatusInfo(readSource, headerString, &(series->count), &(series->images->width), &(series->images->height), amountOfStatusInfoToRead);
expectedHeader = checkHeaderString(headerString);
series->images->buffer = calloc((series->count) * numberOfBytesToRead + 1, sizeof(GrayScalePixelType));
series->labels = calloc((series->count) + 1, sizeof(&(series->labels)));
series->images->buffer = calloc((series->count) * numberOfBytesToRead, sizeof(GrayScalePixelType));
series->labels = calloc((series->count), sizeof(&(series->labels)));
if (expectedHeader)
{
//printf("%d\n", series->images[0].width);
// reallocate memory so that each image width can be
// saved seperately ???
series->images = realloc(series->images, series->count * 2 * sizeof(unsigned int) + sizeof(headerString));
for (int i = 0; i < series->count; i++)
{
series->images[i].width = series->images->width;
series->images[i].height = series->images->height;
}
// printf("%d\n", series->images[0].width);
// series->images[1].width is not being set
// implement setting several amoundt of status info
// for when several images are bing read
// also adjust amoung of memory allocated for
// staus info based on the number of images to be read
//printf("%d\n", series->images[1].width);
readImagedata(readSource, series->images->buffer, series->labels, series->count, numberOfBytesToRead);
// printf("%d\n", series->images[1].width);
readImagedata(readSource, series, numberOfBytesToRead);
}
else
{
printf("unexpected header!\n");
fclose(readSource);
return NULL;
}
fclose(readSource);
}
@ -91,16 +111,20 @@ void clearSeries(GrayScaleImageSeries *series)
{
int i = 0;
// Write NULL into all memory spaces
// this first for loop does not work
/*
for (i = 0; i < ((series->count) * (series->images->width) * (series->images->height)); i++)
{
*(series->images->buffer + i * (series->images->width) * (series->images->height)) = '\0';
}
printf("count: %d ", series->count);
printf("width: %d ", series->images->width);
printf("height: %d ", series->images->height);
printf("sum: %d ", ((series->count) * (series->images->width) * (series->images->height)));
printf("sum in int: %d\n",((series->count) * (series->images->width) * (series->images->height)/4));
*/
// Write NULL into all memory spaces
for (i = 0; i < ((series->count) * (series->images->width) * (series->images->height) / 4); i++)
{
*(series->images->buffer + i * 4 * (series->images->width) * (series->images->height)) = '\0';
}
for (i = 0; i < (series->count); i++)
{
*(series->labels + i) = '\0';
@ -159,15 +183,24 @@ unsigned int readStatusInfo(FILE *source, char *const headerString, unsigned int
}
// reads the imagebytes and the label of all images
void readImagedata(FILE *source, unsigned char *const imageBuffer, unsigned char *const labelBuffer,int const imageCount , int const amountOfBytes)
void readImagedata(FILE *source, GrayScaleImageSeries *series, int const amountOfBytes)
{
int i = 0;
for (i = 0; i <= imageCount; i++)
for (i = 0; i < series->count ; i++)
{
fread((imageBuffer + i * amountOfBytes), sizeof(&(imageBuffer)), amountOfBytes, source);
fread((labelBuffer + i), sizeof(&(labelBuffer)), 1, source);
fread(&(series->images->buffer[i]), 1, amountOfBytes, source);
fread(&(series->labels[i]), 2, 1, source);
}
// No lable in images after the first one,
// so expectation is that they must all be set
// to the same lable
for (int i = 0; i < series->count; i++)
{
series->labels[i] = *series->labels;
}
}
unsigned int checkHeaderString(char header[])
@ -184,7 +217,6 @@ unsigned int checkHeaderString(char header[])
}
}
printf("header identical? %d\n", !notIdenticall);
return !notIdenticall;
}

View File

@ -1 +0,0 @@
some_tag