main.cpp

/*
 *    Deepak Krishnaa Govindarajan
 *    Marcus Naess
 *    Soobin Rho
 *    Fall, 2022
 *    COSC 226: C++ Programming
 *
 *    Hw: A Container class for handling images.
 */

#include "Image.h"
using namespace std;

int main() {

    // ----------------------------------------------------------------
    // 1. Create a constant image and print a histogram of the image
    // ----------------------------------------------------------------
    const int CONSTANT_COLOR {13};
    Image imageGrey {CONSTANT_COLOR};
    pgmPrintHistogram(imageGrey);

    // Print a whitespace for better readability
    cout<<'\n';

    // ----------------------------------------------------------------
    // 2. Create a gradient image and print a histogram of the image
    // ----------------------------------------------------------------
    Image imageGradient {};  // Default constructor creates a gradient
    pgmPrintHistogram(imageGradient);

    // ----------------------------------------------------------------
    // 3. Save the example image files
    // ----------------------------------------------------------------
    pgmSaveAsFile(imageGrey,"imageGrey.pgm");
    pgmSaveAsFile(imageGradient,"imageGradient.pgm");

    // ----------------------------------------------------------------
    // 4. Construct using an existing pgm file
    // ----------------------------------------------------------------
    Image imageFromFile {"imageGradient.pgm"};

    // ----------------------------------------------------------------
    // 5. Adjust brightness and then save as two files:
    //    "imageAdjusted.pgm" is saved in P2 form (ASCII).
    //    "imageAdjustedBinary.pgm" is saved in P5 form (binary).
    // ----------------------------------------------------------------
    imageFromFile.setBrightness(1,-5);
    pgmSaveAsFile(imageFromFile,"imageAdjusted.pgm");
    pgmSaveAsFile(imageFromFile,"imageAdjustedBinary.pgm","P5");

    Image subset {"gator.pgm"};
    Image subsetreturn = subset.subset(100,100,200,200);
    pgmSaveAsFile(subsetreturn,"subset.pgm");

    Image downsample {"gator.pgm"};
    Image downsampleReturn = downsample.downsample(false);
    pgmSaveAsFile(downsampleReturn,"downsample.pgm");

    Image downsampleSmooth {"gator.pgm"};
    Image downsampleSmoothReturn = downsampleSmooth.downsample(true);
    pgmSaveAsFile(downsampleSmoothReturn,"downsampleSooth.pgm");

    // Return 0 to signal success
    return 0;
}