mvadrs_dark_pixel_counting.m

This algorithm is to count the dark colored pixels in the input image. This can be used in goods sor

%--------------------------------------------------------------------------
% DARK PIXEL ANALYSIS ALGORITHM
% COUNT THE NUMBER OF DARK PIXELS IN THE IMAGE
%--------------------------------------------------------------------------
% function [dpix]=DarkPixelAmount(img)
clc
clear all
close all
warning off
pat=pwd;
pat=strcat(pat,'\YourImagePath\');
for i=1:161
   tic;
%  i=113;
  f=strcat(num2str(i),'.bmp');
  fn=strcat(pat,f);
  img=imread(fn);

dpix=0;
for a=1:size(img,1)
    for b=1:size(img,2)
%--------------------------------------------------------------------------
%IN THE RGB COLOR CUBE BELOW 200 RANGE WILL BE DARK
%SO WE FIRST GET THE IMAGE PIXEL AND CHECK IS IT BELOW 200
%IF BELOW 200 MEANS WE CAN CONFORM IT AS DARK PIXEL AND COUNT IT
        if(((img(a,b,1)<200)&(img(a,b,2)<200)&(img(a,b,3)<200)))
            dpix=dpix+1;
        end
%--------------------------------------------------------------------------
    end
end
% dpix
toc
end