redFilter.cpp

#include "redFilter.h"
void redFilter::applyFilter(image_data imgData) {
	int newCoord[4];
	if (u != 0)
		newCoord[0] = imgData.h / u;
	else
		newCoord[0] = 0;
	if (l != 0)
		newCoord[1] = imgData.w / l;
	else
		newCoord[1] = 0;
	if (b != 0)
		newCoord[2] = imgData.h / b;
	else
		newCoord[2] = 0;
	if (r != 0)
		newCoord[3] = imgData.w / r;
	else
		newCoord[3] = 0;

	for (int i = newCoord[0]; i < newCoord[2]; i++)
	{
		for (int j = newCoord[1]; j < newCoord[3]; j++)
		{
			imgData.pixels[(i * imgData.w + j) * imgData.compPerPixel] = (unsigned char)255;
			imgData.pixels[(i * imgData.w + j) * imgData.compPerPixel + 1] = (unsigned char)0;
			imgData.pixels[(i * imgData.w + j) * imgData.compPerPixel + 2] = (unsigned char)0;
		}
	}
}