void sketchify()
{
// Load in.png
PNG * original = new PNG;
(*original).readFromFile("in.png");
int width = original -> width();
int height = original -> height();
// Create out.png
PNG * output = new PNG;
output = setupOutput(width, height);
// Loud our favorite color to color the outline
RGBAPixel * myPixel = new RGBAPixel;
*myPixel = myFavoriteColor(192);
// Go over the whole image, and if a pixel differs from that to its upper
// left, color it my favorite color in the output
for (int y = 1; 0 < y && y < height; y++)
{
for (int x = 1; 0 < x && x < width; x++)
{
// Calculate the pixel difference
RGBAPixel * prev = (*original)(x-1, y-1);
RGBAPixel * curr = (*original)(x , y );
int diff = abs(curr -> red - prev ->red ) +
abs(curr -> green - prev -> green) +
abs(curr -> blue - prev -> blue );
// If the pixel is an edge pixel,
// color the output pixel with my favorite color
RGBAPixel * currOutPixel = (*output)(x,y);
if (diff > 100)
*currOutPixel = *myPixel;
}
}
// // check output
/*PNG * ans = new PNG;
ans -> readFromFile("out_02.png");
if (*ans == *output)
std::cout << "Good" << endl;
else
std::cout << "Bad" << endl;*/
// Save the output file
output -> writeToFile("out.png");
// Clean up memory
delete myPixel;
delete output;
delete original;
//delete ans;
}
void sketchify()
{
// Load in.png
PNG * original;
//std::cout << "Reached line 28" << endl;
original = new PNG();
original->readFromFile("in.png");
int width = original->width();
int height = original->height();
//std::cout << "Reached line 32" << endl;
// Create out.png
PNG * output = setupOutput(width, height);
// Loud our favorite color to color the outline
RGBAPixel * myPixel = myFavoriteColor(192);
// Go over the whole image, and if a pixel differs from that to its upper
// left, color it my favorite color in the output
for (int y = 1; y < height; y++)
{
//std::cout << "begin" << endl;
for (int x = 1; x < width; x++)
{
// Calculate the pixel difference
RGBAPixel * prev = (*original)(x-1, y-1);
RGBAPixel * curr = (*original)(x , y );
int diff = abs(curr->red - prev->red ) +
abs(curr->green - prev->green) +
abs(curr->blue - prev->blue );
// If the pixel is an edge pixel,
// color the output pixel with my favorite color
RGBAPixel * currOutPixel =(*output)(x,y);
if (diff > 100)
*currOutPixel = *myPixel;
//*(*output)(x,y) = *myPixel;
}
//std::cout << "end" << endl;
}
// Save the output file
//std::cout << "begin" << endl;
output->writeToFile("out.png");
//std::cout << "end" << endl;
// Clean up memory
delete myPixel;
//std::cout << "check1" << endl;
delete output;
delete original;
//std::cout << "check2" << endl;
}
