将下列函数改成对选中区域进行oldimg处理 function fudiao_Callback(hObject, eventdata, handles) % hObject handle to fudiao (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global T axes(handles.axes2); T=getimage; img2=fudiao(T); imshow(img2);
时间: 2024-02-25 15:52:36 浏览: 62
可以使用以下代码将该函数改为对选中区域进行oldimg处理:
```
function fudiao_Callback(hObject, eventdata, handles)
% hObject handle to fudiao (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global T axes(handles.axes2);
% Get selected region
rect = getrect(handles.axes2);
x1 = round(rect(1));
y1 = round(rect(2));
x2 = round(rect(1) + rect(3));
y2 = round(rect(2) + rect(4));
selected_region = T(y1:y2, x1:x2, :);
% Apply oldimg processing to selected region
processed_region = fudiao(selected_region);
% Replace selected region with processed region in original image
T(y1:y2, x1:x2, :) = processed_region;
% Display updated image
imshow(T);
```
在该代码中,我们使用 `getrect` 函数获取在 `axes2` 中选中的区域,并将其保存在 `rect` 变量中。然后,我们使用 `round` 函数将 `rect` 中的坐标值舍入到最近的整数,并使用这些值来提取原始图像中选定区域的子图像。接下来,我们将 `selected_region` 作为输入参数传递给 `fudiao` 函数,以应用oldimg处理。最后,我们将处理后的选定区域替换回原始图像中的相应位置,并使用 `imshow` 函数显示更新后的图像。
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