78 lines
2 KiB
C++
78 lines
2 KiB
C++
#pragma once
|
|
|
|
#include <vector>
|
|
#include <string>
|
|
#include <cstdint>
|
|
#include <fstream>
|
|
|
|
/**
|
|
* @brief Stores PGM image data
|
|
*
|
|
* This class can read and write PGM images, perform smoothing and
|
|
* edge detection on them and display them in the console as ASCII art
|
|
*/
|
|
class Bild
|
|
{
|
|
public:
|
|
/**
|
|
* @brief Creates a new empty picture.
|
|
*
|
|
* The created picture has no dimensions and contains no pixel data.
|
|
*/
|
|
Bild() = default;
|
|
|
|
/**
|
|
* @brief Load an image
|
|
*
|
|
* Reads a file containing image data and populates the pixel array
|
|
*
|
|
* @param file (Valid) filestream containing image data
|
|
* @param image The image object to store the data in
|
|
* @return The modified filestream
|
|
*/
|
|
friend std::ifstream& operator>>(std::ifstream& file, Bild& image);
|
|
|
|
/**
|
|
* @brief Save an image
|
|
*
|
|
* Writes the stored image data into a file, overwriting any contents in it
|
|
*
|
|
* @param file (Valid) filestream to store the image in
|
|
* @param image The image object to get the data from
|
|
* @return The modified filestream
|
|
*/
|
|
friend std::ofstream& operator<<(std::ofstream& file, const Bild& image);
|
|
|
|
/**
|
|
* @brief Renders the image to the console
|
|
*
|
|
* Draws the image in the console using ascii characters.
|
|
* Das war zwar in der Aufgabe nicht verlangt aber ich wollt schon gern die Bilder sehen
|
|
*
|
|
* @param os Output stream to draw to
|
|
* @param image Image to draw
|
|
* @return The modified output stream
|
|
*/
|
|
friend std::ostream& operator<<(std::ostream& os, const Bild& image);
|
|
|
|
/**
|
|
* @brief Applies smoothing to an image, effectively blurring it
|
|
*
|
|
* @return The blurred image
|
|
*/
|
|
Bild Geglaettet() const;
|
|
|
|
/**
|
|
* @brief Performs edge detection on the image
|
|
*
|
|
* @return An image with only the edges found in the original
|
|
*/
|
|
Bild Kantenbild() const;
|
|
|
|
private:
|
|
uint32_t width {};
|
|
uint32_t height {};
|
|
std::string description;
|
|
std::vector<uint8_t> pixels;
|
|
};
|