我的 GUI 有问题。在我的打开函数中,我将一个img_new
变量定义为我存储的图像。
我的 GUI 有两个轴,一个显示原始图像,另一个显示过滤后的图像。我在带有 4 个单选按钮的面板中有 4 个过滤器。在每个代码的末尾都有img_new
= 通过单选按钮过滤器创建的图像。
这是一些代码:
% --- Executes when selected object is changed in uipanel3.
function uipanel3_SelectionChangeFcn(hObject, eventdata, handles)
handles.count = handles.count + 1;
% Change filter orientation depending on which radiobutton is chosen
switch get(eventdata.NewValue,'Tag')
case 'hte'
h_te = zeros(handles.rows, handles.colums);
# code of the filter...
axes(handles.axes2);
imshow(h_te);
handles.img_new = h_te;
case 'hc'
h_c = zeros(handles.rows, handles.colums);
# code of the filter...
axes(handles.axes2);
imshow(h_c);
handles.img_new = h_c;
case 'vlr'
v_lr = zeros(handles.rows, handles.colums);
# code of the filter...
axes(handles.axes2);
imshow(v_lr);
handles.img_new = v_lr;
case 'vc'
v_c = zeros(handles.rows, handles.colums);
# code of the filter...
axes(handles.axes2);
imshow(v_c);
handles.img_new = v_c;
end
guidata(hObject, handles)
这是imwrite
功能:
% --------------------------------------------------------------------
function save_img_ClickedCallback(hObject, ~, handles)
% writing the new image
imwrite(handles.img_new, strcat('filtered_image_', num2str(handles.count), '.png'));
guidata(hObject, handles)
这是将图像获取到axes1
原始图像并将其过滤为axes2
(已过滤)的功能
% --- Executes on button press in img2.
function img2_Callback(hObject, ~, handles)
% Read image 2
img = imread('./coimbra_estadio.jpg');
handles.img_d = im2double(img);
% image size
size_img = size(handles.img_d);
handles.colums = size_img(2);
handles.rows = size_img(1);
if rem(handles.rows,2) == 0
handles.row_0 = ((handles.rows/2)+1);
else
handles.row_0 = ((handles.rows/2)+0.5);
end
if rem(handles.colums,2) == 0
handles.colum_0 = ((handles.colums/2)+1);
else
handles.colum_0 = ((handles.colums/2)+0.5);
end
axes(handles.axes1);
imshow(img);
% Generate eventdata to call the radiobuttons function
eventdata_new.EventName = 'SelectionChanged';
eventdata_new.OldValue = get(handles.uipanel3,'SelectedObject');
eventdata_new.NewValue = get(handles.uipanel3,'SelectedObject');
uipanel3_SelectionChangeFcn(handles.uipanel3, eventdata_new, handles);
guidata(hObject, handles)
如您所见,最后我调用了面板函数,因此在加载图像时会自动过滤并axes2
更改图像。
问题是当我调用 save 函数时,它会保存旧的img_new
.
如果我更改单选按钮,img_new
则会刷新,但如果未更改,则不会刷新。它应该像加载图像自动调用单选按钮功能面板一样。