More descriptive function comments

DescriptorManager.cpp

@@ -32,6 +32,7 @@ DescriptorManager::DescriptorManager(const fs::path & image_path) {
 DescriptorManager::~DescriptorManager() {
 	//Do some clean-up?
 	//Realistically, when this gets destroyed the application is done anyway.
+	//Let the OS take care of garbage collection
 }
 
 //Loads all base images, calculates their descriptors,
@@ -139,7 +140,8 @@ void DescriptorManager::Init() {
 	initialized = true;
 }
 
-//Sorts all images we have on distance from the query image
+//Sorts all base (unmutated) images in order of distance from the given image
+//After this function the distances array will be filled
 void DescriptorManager::rankImages(string image_name, int method) {
 	bitset<64> target;
 	if (features[method].count(image_name) && initialized) { //if we have image
@@ -156,7 +158,8 @@ void DescriptorManager::rankImages(string image_name, int method) {
 	}
 }
 
-//inserts the descriptors of the mutated versions of the image.
+//Adds mutated descriptors of a given image to a copy of the distances array.
+//It inserts these mutated descriptors in a sorted way
 //Assumes the distances array is filled with the normal distances
 void DescriptorManager::rankMutations(string image_name, int method) {
 	bitset<64> target;
@@ -190,6 +193,8 @@ void DescriptorManager::rankMutations(string image_name, int method) {
 	}
 }
 
+//Needs to be called after Init().
+//Takes all the calculated features and rankes 
 void DescriptorManager::runExperiments() {
 	for (int i = 0; i < numDescriptors; i++) {
 		for (map<string, bitset<64>>::iterator it = features[i].begin(); it != features[i].end(); ++it) {