手写数字GUI界面

Halcom · 发表于 2021-7-4 11:56:56

直接运行改文件，界面，手写，点击【OK】即可保存图像：numpic.bmp
环境：64bit + win10 + matlab2019a

function halcom_cn
mIconCData = []; % The icon CData edited by this GUI of dimension
% [mIconHeight, mIconWidth, 3]
mIsEditingIcon = false; % Flag for indicating whether the current mouse
% move is used for editing color or not
% Variables for supporting custom property/value pairs
mIconWidth = 28; % Use input property 'iconwidth' to initialize
mIconHeight = 28; % Use input property 'iconheight' to initialize
hMainFigure = figure(...
'Units','characters',...
'MenuBar','none',...
'Toolbar','none',...
'Position',[71.8 34.7 106 36.15],...
'WindowStyle', 'normal',...
'WindowButtonDownFcn', @hMainFigureWindowButtonDownFcn,...
'WindowButtonUpFcn', @hMainFigureWindowButtonUpFcn,...
'WindowButtonMotionFcn', @hMainFigureWindowButtonMotionFcn);
hIconEditPanel = uipanel(...
'Parent',hMainFigure,...
'Units','characters',...
'Clipping','on',...
'Position',[1.8 4.3 68.2 27.77]);
hIconEditAxes = axes(...
'Parent',hIconEditPanel,...
'vis','off',...
'Units','characters',...
'Position',[2 1.15 64 24.6]);
hOKButton = uicontrol(...
'Parent',hMainFigure,...
'Units','characters',...
'Position',[65.8 0.62 17.8 2.38],...
'String','OK',...
'Callback',@hOKButtonCallback);
mIconCData = ones(mIconHeight, mIconWidth, 3);
localUpdateIconPlot();
% localUpdateIconPlot();
% Make the GUI on screen
set(hMainFigure,'visible', 'on');
movegui(hMainFigure,'onscreen');
% Make the GUI blocking
uiwait(hMainFigure);
% Ip = preproc_image(mIconCData)';
% save Ip.mat Ip
% figure,
% load('Ip.mat')
% imshow(Ip,[])
%------------------------------------------------------------------
function hMainFigureWindowButtonDownFcn(hObject, eventdata)
if (ancestor(gco,'axes') == hIconEditAxes)
mIsEditingIcon = true;
localEditColor();
end
end
function hMainFigureWindowButtonUpFcn(hObject, eventdata)
mIsEditingIcon = false;
end
function hMainFigureWindowButtonMotionFcn(hObject, eventdata)
if (ancestor(gco,'axes') == hIconEditAxes)
localEditColor();
end
end
function localEditColor
if mIsEditingIcon
pt = get(hIconEditAxes,'currentpoint');
x = max(1, min(ceil(pt(1,1)), mIconWidth));
y = max(1, min(ceil(pt(1,2)), mIconHeight));
% update color of the selected block
m = get(gcf,'SelectionType');
if m(1) == 'n', % left button pressed
mIconCData(y, x,:) = 0;
if y<mIconHeight, mIconCData(y+1,x,:) = .8*mIconCData(y+1,x,:); end
if x<mIconWidth, mIconCData(y,x+1,:) = .8*mIconCData(y,x+1,:); end
if y>1, mIconCData(y-1,x,:) = .8*mIconCData(y-1,x,:); end
if x>1, mIconCData(y,x-1,:) = .8*mIconCData(y,x-1,:); end
else
mIconCData(y, x,:) = 1;
end
localUpdateIconPlot();
end
end
%------------------------------------------------------------------
function localUpdateIconPlot
if isempty(mIconCData)
mIconCData = nan(mIconHeight, mIconWidth, 3);
end
rows = size(mIconCData, 1);
cols = size(mIconCData, 2);
% update icon edit pane
set(hIconEditPanel, 'Title',['Icon Edit Pane (', num2str(rows),' X ', num2str(cols),')']);
s = findobj(hIconEditPanel,'type','surface');
if isempty(s)
gridColor = get(0, 'defaultuicontrolbackgroundcolor') - 0.2;
gridColor(gridColor<0)=0;
s=surface('edgecolor',gridColor,'parent',hIconEditAxes);
end
%set xdata, ydata, zdata in case the rows and/or cols change
set(s,'xdata',0:cols,'ydata',0:rows,'zdata',zeros(rows+1,cols+1),'cdata',localGetIconCDataWithNaNs());
set(hIconEditAxes,'drawmode','fast','xlim',[-.5 cols+.5],'ylim',[-.5 rows+.5]);
axis(hIconEditAxes, 'ij', 'off');
end
%------------------------------------------------------------------
function cdwithnan = localGetIconCDataWithNaNs()
cdwithnan = mIconCData;
cdwithnan(:,end+1,:) = NaN;
cdwithnan(end+1,:,:) = NaN;
end
%------------------------------------------------------------------
function hOKButtonCallback(hObject, eventdata)
% Callback called when the OK button is pressed
uiresume;
number = preproc_image(mIconCData)';
save number.mat number
imwrite(number,'numpic.bmp','bmp')
% delete(hMainFigure);
end
end
function out = preproc_image(id)
%Preprocess single image
Inorm = id(:,:,1);
Inorm(~isfinite(Inorm)) = 1;
Inorm = abs(Inorm-1)';
out = zeros(32);
out(3:30,3:30) = Inorm;
if sum(out(:))>0,
out = reshape(mapstd(out(:)'), 32, 32);
end
end

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