[image processing] image histogram equalization system with GUI interface

1 brief introduction

Histogram equalization is to transform an image with known gray probability distribution , So it becomes a new image with uniform gray probability distribution . It is a histogram correction method based on cumulative distribution function transformation . Analyze and summarize the equalization algorithm of gray histogram and pass MATLAB Experiments show that this method can effectively achieve the purpose of image enhancement .

2 Part of the code

function varargout = MainGUI(varargin)% MAINGUI MATLAB code for MainGUI.fig%      MAINGUI, by itself, creates a new MAINGUI or raises the existing%      singleton*.%%      H = MAINGUI returns the handle to a new MAINGUI or the handle to%      the existing singleton*.%%      MAINGUI('CALLBACK',hObject,eventData,handles,...) calls the local%      function named CALLBACK in MAINGUI.M with the given input arguments.%%      MAINGUI('Property','Value',...) creates a new MAINGUI or raises the%      existing singleton*.  Starting from the left, property value pairs are%      applied to the GUI before MainGUI_OpeningFcn gets called.  An%      unrecognized property name or invalid value makes property application%      stop.  All inputs are passed to MainGUI_OpeningFcn via varargin.%%      *See GUI Options on GUIDE's Tools menu.  Choose "GUI allows only one%      instance to run (singleton)".%% See also: GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help MainGUI% Last Modified by GUIDE v2.5 26-Jun-2022 13:40:29% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name',       mfilename, ...                   'gui_Singleton',  gui_Singleton, ...                   'gui_OpeningFcn', @MainGUI_OpeningFcn, ...                   'gui_OutputFcn',  @MainGUI_OutputFcn, ...                   'gui_LayoutFcn',  [] , ...                   'gui_Callback',   []);if nargin && ischar(varargin{1})    gui_State.gui_Callback = str2func(varargin{1});end​if nargoutndles and user data (see GUIDATA)cla(handles.axes1,'reset')cla(handles.axes2,'reset')​

3 Simulation results

4 reference

[1] Jian Jian Liu . Discussion on histogram equalization in digital image processing [J]. Silicon valley , 2011(16):2.

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