Adds DCTMedian

Probably DCT Average would work better..

Descriptor.h

@@ -361,3 +361,34 @@ public:
 		return "Discrete Cosine Transform - Pearson Code";
 	}
 };
+
+class DCTMedian : public Descriptor {
+public:
+	bitset<64> feature(Image* img) {
+		double* converted = CalculateDCT(img);
+		double bullshit[64];
+		for (ssize_t i = 0; i < 64; i++) {
+			bullshit[i] = converted[i];
+		}
+		sort(bullshit, bullshit + 64);
+		float median = (float)(bullshit[31] + bullshit[32]) / 2;
+
+		bitset<64> retval(0);
+		for (ssize_t i = 0; i < 64; i++) {
+			retval <<= 1;
+			if (converted[i] > median)
+				retval |= bitset<64>(1);
+		}
+		return retval;
+	}
+	unsigned long long distance(bitset<64> a, bitset<64> b) {
+		int biterror = 0;
+		for (int i = 0; i < 64; i++) {
+			if (a[i] != b[i]) biterror++;
+		}
+		return biterror;
+	};
+	string ToString() {
+		return "Discrete Cosine Transform - Median Code";
+	}
+};

DescriptorManager.cpp

@@ -10,6 +10,7 @@ DescriptorManager::DescriptorManager(const fs::path & image_path) {
 	img_path = image_path;
 
 	//Manual definitions.. SAD!
+	descriptor_types[7] = new DCTMedian();
 	descriptor_types[6] = new DCTPearson();
 	descriptor_types[5] = new threshold();
 	descriptor_types[4] = new pearson();
@@ -122,7 +123,7 @@ void DescriptorManager::similarImages(string image_name, int method, int numImag
 //can be called directly or is called by its overload
 //assumes a < numDescriptors
 void DescriptorManager::outputMap(int a) {
-	if (a != 6) return;
+	if (a != 7) return;
 	cout << "Outputting map " << descriptor_types[a]->ToString() << endl;
 	map<string, bitset<64>> a_map = descriptors[a];
 	if (a_map.begin() == a_map.end()) {

DescriptorManager.h

@@ -30,7 +30,7 @@ public:
 	void outputMap(int a);
 	void outputMap();
 private:
-	static const int numDescriptors = 7; //TODO: automagically update this?
+	static const int numDescriptors = 8; //TODO: automagically update this?
 	map<string, bitset<64>> descriptors[numDescriptors]; //array of maps that will hold the descriptors
 	fs::path img_path; //where the images are
 	Descriptor* descriptor_types[numDescriptors];