C++ Image Processing with Templated Pixels

Illustrating Advanced C++ Image Processing with Templated Classes

This C++ program exemplifies advanced image processing using templated classes, efficiently managing diverse pixel types for RGB and greyscale images. Its modular design enhances code organization, allowing seamless creation, initialization, and brightness printing for both image types. The versatile templated approach proves invaluable for handling various pixel characteristics. If you need assistance with your C++ assignment in image processing or templated class implementations, this code serves as an insightful reference. It demonstrates best practices in leveraging C++ features for image manipulation, making it a valuable resource for academic assignments or real-world applications in computer vision.

Block 1: Header Inclusions


#include < exception >
#include < stdexcept >
#include < iostream >
#include < random >
#include < iomanip >
#include "Image.h"
#include "Pixel.h"
#include "RGBPixel.h"
#include "GreyscalePixel.h"
#define IMAGE_ROWS 10
#define IMAGE_COLS 10

This block includes necessary standard C++ headers (<exception>, <stdexcept>, <iostream>, <random>, and <iomanip>).
It also includes custom headers for the Image, Pixel, RGBPixel, and GreyscalePixel classes.
Defines constants IMAGE_ROWS and IMAGE_COLS for the dimensions of the images.

Block 2: Main Function


int main(){
/* */
/* DO NOT MOFIFY ANY CODE IN THIS SECTION */
/* */
// ... (omitted for brevity)
}

This section contains a comment indicating that the code in this section should not be modified

Block 3: RGB Image Generation and Initialization


//Create an RGB image
Image

imageRGB(IMAGE_ROWS, IMAGE_COLS);
//Initialize the pixels to random values
RGBPixel pixrgb;
std::random_device engine;
std::uniform_int_distribution

uniform_dist(PIX_MIN, PIX_MAX);
for (int i = 0; i != IMAGE_ROWS; ++i) {
for (int j = 0; j != IMAGE_COLS; ++j) {
pixrgb['r'] = uniform_dist(engine);
pixrgb['g'] = uniform_dist(engine);
pixrgb['b'] = uniform_dist(engine);
imageRGB.set(i, j, pixrgb);
}
}

Creates an instance of Image templated with RGBPixel for RGB images.
Initializes pixels in the RGB image with random values for red ('r'), green ('g'), and blue ('b') components.
Loops through each pixel in the image, assigns random values, and sets the pixel in the image.

Block 4: Print RGB Image Brightness


// Print the brightness of each pixel
std::cout << "*** Printing RGB image Brightness ***" << std::endl;
for (int i = 0; i != IMAGE_ROWS; ++i) {
for (int j = 0; j != IMAGE_COLS; ++j) {
std::cout << std::setfill('0') << std::setw(3)
<< imageRGB.get(i, j).getBrightness() << " ";
}
std::cout << std::endl;
}
std::cout << " " << std::endl;

Prints a header indicating that RGB image brightness will be printed.
Nested loops iterate through each pixel in the RGB image and print its brightness using the getBrightness method.
Each brightness value is printed with a width of 3 characters, padded with zeros.

Block 5: Greyscale Image Generation and Initialization


//Create a greyscale image
Image

imageGS(IMAGE_ROWS, IMAGE_COLS);
//Initialize the pixels to random values
GreyscalePixel pixgs;
for (int i = 0; i != IMAGE_ROWS; ++i) {
for (int j = 0; j != IMAGE_COLS; ++j) {
pixgs['i'] = uniform_dist(engine);
imageGS.set(i, j, pixgs);
}
}

Creates an instance of Image templated with GreyscalePixel for greyscale images.
Initializes pixels in the greyscale image with random intensity values ('i').
Loops through each pixel in the image, assigns random values, and sets the pixel in the image.

Block 6: Print Greyscale Image Brightness


// Print the brightness of each pixel
std::cout << "*** Printing Greyscale image Brightness ***" << std::endl;
for (int i = 0; i != IMAGE_ROWS; ++i) {
for (int j = 0; j != IMAGE_COLS; ++j) {
std::cout << std::setfill('0') << std::setw(3)
<< imageGS.get(i, j).getBrightness() << " ";
}
std::cout << std::endl;
}

Prints a header indicating that greyscale image brightness will be printed.
Nested loops iterate through each pixel in the greyscale image and print its brightness using the getBrightness method.
Each brightness value is printed with a width of 3 characters, padded with zeros.

Block 7: Program Exit


return EXIT_SUCCESS;
}

Exits the program with a success status.
The standard EXIT_SUCCESS macro is used, indicating successful execution.

Conclusion

In conclusion, this C++ code not only showcases the power of templated classes in image processing but also serves as an educational asset for those seeking guidance on similar assignments. Its structured and modular design, coupled with insightful comments, makes it a valuable resource for understanding advanced concepts in C++. Whether you are a student grappling with a C++ assignment or a developer aiming to enhance your image processing skills, this code provides a solid foundation. The combination of templated classes and efficient handling of RGB and greyscale images underscores the adaptability and versatility of C++ in addressing complex programming challenges.

Exploring C++ Image Processing: Templated Pixels and Brightness Analysis