histogram.m 

function h=histogram(f,N)

% histogram - computes a grey level histogram.
% version 1
% Lance Williams 
% Dept. of Computer Science
% Univ. of New Mexico
%

h(1:N) = 0;

rf=size(f,1);
cf=size(f,2);

for i=0:N-1
  h(i+1) = sum(sum(f==i));
end

댓글

  1. 제갈식2018년 1월 2일 오전 5:41

    call:

    octave:72> hh=histogram(aa, 256);
    octave:73>
    octave:73>
    octave:73> plot(0:255, hh)

    답글삭제

댓글 쓰기

이 블로그의 인기 게시물

Draw Circle on PictureBox when Button Click - Winform

이미지
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using AForge; using AForge.Imaging; using AForge.Imaging.Filters; using AForge.Math; namespace winForm1 {     public partial class Form1 : Form     {         Bitmap image;       // Global Bitmap         private bool _drawRect = false;         private bool _drawCircle = false;         public Form1()         {             InitializeComponent();             pictureBox1.Paint += new PaintEventHandler(this.pictur...
자세한 내용 보기

2D FFT of Gray Image by AForge

이미지
  using  System; using  System.Drawing; using  System.Windows.Forms; using  AForge; using  AForge.Imaging; using  AForge.Imaging.Filters; using  AForge.Imaging.ComplexFilters; namespace  tt {      class   MainClass     {          public   static   void   Main ( string []  args )         {              //  load image              Bitmap   image  = AForge.Imaging. Image . FromFile ( @" /Users/kerb/rose.jpg " );              //  create complex image              ComplexImage   complexImage  =...
자세한 내용 보기