编写一个“绘画系统”

在最后一次的作业中，老师让我们编写一个“绘画系统”，提供一系列绘画材料（例如画笔/颜料/滤镜）给用户操作，以创作出动态/交互的绘画作品。这个绘画系统是对“绘画”的概念的扩展，但仍然体现出与传统绘画系统的相似性。可以理解为：创作一个app，看起来比较像“画画”的工具，但又绝不是复现已知的绘画行为，而要体现出通常绘画出不来的效果（动态、交互性）

一什么是“绘画”

材料：颜料，画布，画笔等物质要素；

作画者：创作的思想/技法有关的内容；

交互方式：作画者如何操作材料；

作品：即呈现效果。通常的绘画作品。

最开始我设想的是一个很基本的绘画系统，即点击某个按钮在面板上可以进行基础的绘画（画点，线，特殊图形），再细致的区分颜色大小粗细等等。但是又看了一遍作业要求之后，发现并不是要我们完全复刻一个类似于电脑自带的画图软件。在这里的给出我的理解。

材料：可以是基础的颜色，颜料，画笔，更可以是一个已经制作好的物体（比如unity里面的预制件，点击某个按钮可以用脚本生成）或者说已经制作好的作品。

作画者：各种对作品能产生改变的功能（比如添加一个新物体，或者对已经弄好的作品本身进行改变，例如旋转，平移，缩放，或者是色彩的改变）。

交互方式：因为是编程制作，更多的是用鼠标拖拽，点击。

作品：最后的绘画作品。

确定好这些概念之后，我的作业大致方向已经确定了，分为基础版的绘画和加强版（好像也不对)的“绘画”。

基础版:制作一个基本的绘画系统，更多的是体现材料和交互方式。

因为matlab自己有各种绘制函数，所以我决定用matlab制作。

最初的基础版设计界面：

这个就是点击下拉框选择不同的形状和颜色（类似于画笔和颜料）在面板上进行绘画操作（交互），可以清除图形（类似橡皮擦的功能），同时可以保存作品。

具体的形状有：点，线，矩形和椭圆。点的形状有：+，o，*和三角形。具体的颜色有：红，绿，蓝，黑。通过这些比较基本的绘制，我们可以得到一个很基本的绘画作品。

下面是具体的代码（参考别人代码，会给出链接）：

function varargout = net1(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...'gui_Singleton',  gui_Singleton, ...'gui_OpeningFcn', @net1_OpeningFcn, ...'gui_OutputFcn',  @net1_OutputFcn, ...'gui_LayoutFcn',  [] , ...'gui_Callback',   []);
if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});
endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
elsegui_mainfcn(gui_State, varargin{:});
end
% End initialization code - DO NOT EDIT% --- Executes just before net1 is made visible.
function net1_OpeningFcn(hObject, eventdata, handles, varargin)
% This function has no output args, see OutputFcn.
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% varargin   command line arguments to net1 (see VARARGIN)% Choose default command line output for net1
handles.output = hObject;
movegui(gcf,'center');
% Update handles structure
guidata(hObject, handles);% UIWAIT makes net1 wait for user response (see UIRESUME)
% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line.
function varargout = net1_OutputFcn(hObject, eventdata, handles)
% varargout  cell array for returning output args (see VARARGOUT);
% hObject    handle to figure
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Get default command line output from handles structure
varargout{1} = handles.output;% --- Executes on button press in pushbutton1.% --- Executes on mouse press over figure background, over a disabled or
% --- inactive control, or over an axes background.% --- Executes during object creation, after setting all properties.
function figure1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns calledglobal flg mark rgb graph;
flg=0;   %f初始鼠标没有按下
graph='点线';
mark='.';
rgb=[1,0,0];
function figure1_WindowButtonDownFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global flg  mark rgb x0 y0 x y rect graph;
flg=1;
set(handles.pushbutton2,'enable','on');
set(handles.pushbutton3,'enable','on');
currPt = get(gca, 'CurrentPoint');
x = currPt(1,1);
y = currPt(1,2);
switch(graph)case '点线'line(x,y, 'marker', mark,'color',rgb);otherwiseline(x,y,'LineStyle',mark,'color',rgb);
end
x0=x;y0=y;
set(handles.edit1,'string',num2str(x));
set(handles.edit2,'string',num2str(y));
set(handles.text3,'string','Mouse down!');% --- Executes on mouse motion over figure - except title and menu.
function figure1_WindowButtonMotionFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global flg mark rgb x0 y0 x y rect graph h;
if flgswitch(graph)case '点线'currPt=get(gca, 'CurrentPoint');x=currPt(1,1);y=currPt(1,2);line(x,y, 'marker', mark,'color',rgb);case '线形'x0=x;y0=y;currPt=get(gca, 'CurrentPoint');x=currPt(1,1);y=currPt(1,2);line([x0 x], [y0,y],'LineStyle',mark,'color',rgb);case '矩形'currPt=get(gca, 'CurrentPoint');x=currPt(1,1);y=currPt(1,2);if x~=x0if ~isempty(h)set(h,'Visible','off')endrect=[min([x0,x]),min([y0,y]),abs(x-x0),abs(y-y0)];if rect(3)*rect(4)~=0h=rectangle('Position',rect,'LineStyle',':');endendcase '椭圆'currPt=get(gca, 'CurrentPoint');x=currPt(1,1);y=currPt(1,2);if x~=x0if ~isempty(h)set(h,'Visible','off')endrect=[min([x0,x]),min([y0,y]),abs(x-x0),abs(y-y0)];if rect(3)*rect(4)~=0h=rectangle('Position',rect,'Curvature',[1,1],'LineStyle',':');endendendset(handles.edit1,'string',num2str(x));set(handles.edit2,'string',num2str(y));set(handles.text3,'string','Mouse is moving!');
endfunction figure1_WindowButtonUpFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global flg rgb mark h graph rect;
flg=0;
switch(graph)case '矩形'set(h,'Visible','off');h=[];if rect(3)*rect(4)~=0rectangle('Position',rect,'edgecolor',rgb,'LineStyle',mark)endcase '椭圆'set(h,'Visible','off');h=[];if rect(3)*rect(4)~=0rectangle('Position',rect,'Curvature',[1,1],'edgecolor',rgb,'LineStyle',mark)end
end
set(handles.text3,'string','Mouse up!');
function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double% --- Executes during object creation, after setting all properties.
function edit1_CreateFcn(hObject, ~, ~)
% hObject    handle to edit1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');
endfunction edit2_Callback(~, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: edit controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');
end% --- Executes when figure1 is resized.
function figure1_ResizeFcn(hObject, eventdata, handles)
% hObject    handle to figure1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on selection change in popupmenu1.
function popupmenu1_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: contents = get(hObject,'String') returns popupmenu1 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu1
global mark;
str=get(handles.popupmenu1,'string');
index=get(handles.popupmenu1,'value');
str1=char(str(index));
mark=str1(1:2);
% --- Executes during object creation, after setting all properties.
function popupmenu1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');
end% --- Executes on selection change in popupmenu2.
function popupmenu2_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: contents = get(hObject,'String') returns popupmenu2 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu2
global rgb;
str=get(handles.popupmenu2,'string');
index=get(handles.popupmenu2,'value');
str1=char(str(index));
switch (str1)case 'red'rgb=[1,0,0];case 'green'rgb=[0,1,0];case 'blue'rgb=[0,0,1];case 'black'rgb=[0,0,0];
end
set(handles.edit1,'foregroundcolor',rgb);
set(handles.edit2,'foregroundcolor',rgb);
set(handles.text3,'foregroundcolor',rgb);
% --- Executes during object creation, after setting all properties.
function popupmenu2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');
end% --- Executes on mouse press over axes background.
function axes1_ButtonDownFcn(hObject, eventdata, handles)
% hObject    handle to axes1 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% --- Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton2 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% set(gcf, 'Interruptible', 'off','BusyAction', 'cancel');
% set(gcf, 'WindowButtonMotionFcn', '','Interruptible', 'off');
cla
set(handles.edit1,'string','');
set(handles.edit2,'string','');
set(handles.text3,'string','');
set(handles.pushbutton2,'enable','off');
set(handles.pushbutton3,'enable','off');
% --- Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[FileName,PathName] = uiputfile({'*.jpg','JPEG(*.jpg)';...'*.bmp','Bitmap(*.bmp)';...'*.gif','GIF(*.gif)';...'*.*',  'All Files (*.*)'},...'Save Picture','Untitled');
if FileName==0return;
elseh=getframe(handles.axes1);imwrite(h.cdata,[PathName,FileName]);
end% --- Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton4 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
CleanGlobals;
close(gcf);% --- Executes on selection change in popupmenu3.
function popupmenu3_Callback(hObject, eventdata, handles)
% hObject    handle to popupmenu3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)% Hints: contents = get(hObject,'String') returns popupmenu3 contents as cell array
%        contents{get(hObject,'Value')} returns selected item from popupmenu3
global graph flag h mark;
h=[];
str=get(handles.popupmenu3,'string');
index=get(handles.popupmenu3,'value');
graph=char(str(index));
popu={};
switch(graph)case '点线'popu={'. 点';'+ 号';'O 圈';'* 号';'v 三角号'};set(handles.popupmenu1,'string',popu);set(handles.popupmenu1,'value',1);set(handles.text4,'string','选择marker')mark='.';otherwisepopu={'- 实线';'--虚线';': 点线';'-.虚点线';};set(handles.popupmenu1,'string',popu);set(handles.popupmenu1,'value',1);set(handles.text4,'string','选择LineTyple')mark='-';
end
% --- Executes during object creation, after setting all properties.
function popupmenu3_CreateFcn(hObject, eventdata, handles)
% hObject    handle to popupmenu3 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    empty - handles not created until after all CreateFcns called% Hint: popupmenu controls usually have a white background on Windows.
%       See ISPC and COMPUTER.
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');
end%%  清 屏
function CleanGlobals
% Clean up the global workspace
clear global flg mark rgb x0 y0 x y rect graph h;

这个时候因为更细致的看了要求之后，便开始了思维的转变，那么，我是不是可以，对一个已经拥有的作品，通过添加某些材料，或者通过某种方式，让它变得更加绚丽或者拥有动态效果呢？

一旦转变到这个思维，我发现这次的作业与matlab的图像处理有那么一点相同，在matlab里面在gui这里添加材料或者通过技法来创作出不一样的绘画作品。

添加材料：首先想的是添加一个新的作品来进行叠加。

function pushbutton18_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton18 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)I1 = getimage(handles.axes1);[filename,pathname] = uigetfile('*.jpg;*.bmp','选择图片','E:\pictures\For_Project\Matlab');
imgaepath = strcat(pathname,filename);
I2 = imread(imgaepath);I1 = (imresize(I1,[600,800]));
I2 = (imresize(I2,[600,800]));d = 0.5;
C = imlincomb(d,I1,1-d,I2,0);axes(handles.axes1);
imshow(C),title('叠底')

最开始的背景：

要叠加的图像：

最后呈现的效果：

最后的效果感觉还可以（但是其实并没有用多少代码）。

之后我突然想到了，既然万物皆可材料（滑稽），为什么我不能添加音乐呢？，这个想法一出现我就开始找资料了，基于matlab的强大，我很快就弄好了。代码如下（音乐效果太难展示了，但是这个代码也可以在m文件中执行）：

播放音乐
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton7 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[fname,pname]=uigetfile('.wav','选择原始声音文件');
file=[pname,fname];
fs = 8000;
[x,fs] = audioread(file);
sound(x,fs);停止音乐
function stopmusic_Callback(hObject, eventdata, handles)
% hObject    handle to stopmusic (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
clear sound;

因为matlabGUI界面添加多的材料制作的效果不是很好，再加上这个学期我们学了matlab图像处理，所以我更多的方向在于技能（对于已有的作品进行某种操作制作出不同绚丽的效果）上面。（第一张蓝色背景为我创作的基础原图）

首先是图像增强方面：

对比度增加和减少：

a=str2num(get(handles.edit5,'string'));
A=getimage(handles.axes1);
B=A*a;
axes(handles.axes1);
imshow(B);
title('对比度');

效果感觉比之前的还好，所以又对亮度进行了调整。

function pushbutton12_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton12 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
b=str2num(get(handles.edit6,'string'));
A=getimage(handles.axes1);
B=A+b;
axes(handles.axes1);
imshow(B);
title('亮度');

之后对图像进行了假彩色增强（还有其他的增强方法，但是这种效果很绚丽）

function pushbutton13_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton13 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
[RGB]=getimage(handles.axes1);
RGBnew(:,:,1)=RGB(:,:,3);
RGBnew(:,:,2)=RGB(:,:,1);
RGBnew(:,:,3)=RGB(:,:,2);
axes(handles.axes1);
imshow(RGBnew);title('假色彩增强');

以及图像的反色处理。

function pushbutton19_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton19 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
im1=getimage(handles.axes1);
im1 = double(im1);
[r, c, m] = size(im1);
im2 = zeros(r,c,m);
for i=1:m
for j=1:r
for k=1:c
im2(j,k,i)=255-im1(j,k,i); %由最高灰度级减去原坐标位置的灰度级进行反色
end
end
end
im2 = uint8(im2);
axes(handles.axes1);
imshow(im2);
title('图像反色');

这个效果是我觉得最惊艳的。

之后添加了一些其他的风格，

老相册风格：

function pushbutton15_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton15 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
Image=getimage(handles.axes1);
Image=double(Image);
Image_new=Image;
Image_new(:,:,1)=0.393*Image(:,:,1)+0.769*Image(:,:,2)+0.189*Image(:,:,3);
Image_new(:,:,2)=0.349*Image(:,:,1)+0.686*Image(:,:,2)+0.168*Image(:,:,3);
Image_new(:,:,3)=0.272*Image(:,:,1)+0.534*Image(:,:,2)+0.131*Image(:,:,3);
axes(handles.axes1);
imshow(Image_new/255);
title('老照片效果');

渐变效果：

function pushbutton17_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton17 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
Image=getimage(handles.axes1);
Image=double(Image)/255;
size_info=size(Image);
height=size_info(1);
width=size_info(2);  % 设置遮罩层
Map=zeros(height, width);
for i=1:widthMap(:, i)=(1-abs(i*2/width-1))*0.8;
end% 遮罩层与原图相乘
Img_new=Image;
for kk=1:3Img_new(:,:,kk)=Image(:,:,kk).*Map;
end
axes(handles.axes1);
imshow(Img_new);
title('色彩渐变');

之后为了作品具有一定的动态性，我做了三个动画效果。

百叶窗1（因为gif不好制作就贴图了手动滑稽）：

function pushbutton6_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton6 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
a=getimage(handles.axes1);[x,y] = size(a(:,:,1));
K = int16(x/4);
for i=1:(x/8)a(i,:,[1,2,3]) = 0;a(i+K,:,[1,2,3]) = 0;a(2*K+i,:,[1,2,3]) = 0;a(3*K+i,:,[1,2,3]) = 0;axes(handles.axes1);imshow(a);title('百叶窗1');pause(0.1);
end

百叶窗2：

function baiyechuang_Callback(hObject, eventdata, handles)
% hObject    handle to baiyechuang (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
image=getimage(handles.axes1);
Image=double(image)/255;
size_info=size(Image);
height=size_info(1);
width=size_info(2);  Map=zeros(height, width);
for row_i=1:heightMap(row_i, :)=1-row_i/height;
endH_shade=10;
Interval=5;Num=height/(H_shade+Interval);
Num=floor(Num);mask=ones(height, width);for j=1:Num+1if(j<=Num)begin_1=1+(j-1)*(H_shade+Interval);mask(begin_1:begin_1+H_shade-1,:)=0;else begin_1=1+Num*(H_shade+Interval);mask(begin_1:height, :)=0;endendfor kk=1:3Image(:,:,kk)=Image(:,:,kk).*(1-mask)+Map.*mask;
end
axes(handles.axes1);imshow(Image);
title('百叶窗2');

最后一个雪花飘落的动态效果（不知道为什么传不了gif只好贴图）

function snow_Callback(hObject, eventdata, handles)
% hObject    handle to snow (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
A=getimage(handles.axes1);%背景图像
h=figure;
imshow(A);   %显示背景图像axes
axis([0 1 0 1]);  %设置坐标范围，并隐藏坐标
axis off;
set(gcf,'color','k'); %设置背景颜色为黑色
%设置显示的雪花数目N=20;
handles=zeros(1,N);
x=rand(2,N);
% fontsize(大)  step 步长
fontsize=floor(rand(1,N)*17+32); %设置字号，32-48之间
new_handles_N=0;
%% 绘图部分
for i=1:Nhandles(i)=text(x(1,i),x(2,i),'*','fontsize',fontsize(i),'color','w');  %handles 存储每一个“雪花”的句柄
end
while 1if ~ishandle(h) return endfor i=1:Ntemp=get(handles(i),'position');step=get(handles(i),'fontsize')/48*0.05;  % 不同大小的雪花，速度不同。if temp(2)<0    %判断是否飘出坐标范围new_handles_N=new_handles_N+1;new_handles(new_handles_N)= copyobj(handles(i),gca);if new_handles_N==500 %扫雪了~\(≧▽≦)/~啦啦啦delete(new_handles);new_handles_N=0;endtemp(1)=rand(1);temp(2)=1;elsetemp(1)=temp(1)+rand(1)*0.1-0.05;temp(2)=temp(2)-step; %速度endset(handles(i),'position',temp,'rotation',get(handles(i),'rotation')+5);endpause(.2)
end

到此为止，整个系统差不多就做完了。下面浅谈一下与传统绘画系统的区别。

技法：传统的绘画更多的是通过画笔来进行操作而创作出真正意义上的绘画作品，这个系统更多的是通过不同的操作来对整体的作品进行改变。

工具；传统的绘画系统则是画笔，橡皮擦，笔刷，颜料填充等等，这个系统基础绘画差不多是这些，加强部分用到的工具则是matlab自带的一些函数。

理念：在开始的时候差不多已经说过了传统绘画是通过画笔来操作颜料进行创作完成作品，我更多则是通过matlab自带的函数操作来操作图片完成不同的图片效果。

创作体验：我觉得非常非常好（做这个的时候），每次有新的风格出来都会觉得很好看。

呈现效果:我觉得基础版和加强版的效果很明显，基础版的效果就像是小时候的简单涂涂画画，加强版的画面更加酷炫。

局限性：我觉得这个系统的局限性更多在于交互体验不是很好（自己matlab学的有点差的可能），传统的绘画系统交互性很好，功能很齐全。

应用：传统绘画更多的可能是制作美术方面的东西（比如sai上面的动漫制作），这个系统更多偏向对于图片的效果处理。

参考资料

matlab实现PS算法之百叶窗、老照片

matlab之PS算法小程序

matlab实现PS算法之渐变

MATLAB GUI实现动态画图曲线的源程序

matlab动态雪花制作

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