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What does the numerical digits in the text box stands for when i adjust my slider. For both Contrast & Brightness
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Brightness Slider:
% --- Executes on slider movement.
function slider_brightness_Callback(hObject, eventdata, handles)
% hObject handle to slider_brightness (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,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
A = get(handles.slider_brightness,'Value');
AFMimage = handles.AFM_Adjust;
a = get(hObject,'Value');
BadjAFMimage = imadd(AFMimage,a);
handles.AFM_BAdjust = BadjAFMimage;
axes(handles.axes1); imshow(BadjAFMimage);
axes(handles.axes4); imhist(BadjAFMimage);
set(handles.slider_brightness,'Value',A);
set(handles.Btext,'String',num2str(A));
imwrite(BadjAFMimage,'Enhance Image.jpg','jpg')
% Update handles structure
guidata(hObject, handles);
Contrast Slider:
% --- Executes on slider movement.
function slider_contrast_Callback(hObject, eventdata, handles)
% hObject handle to slider_contrast (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,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
A = get(handles.slider_contrast,'Value');
AFMimage = handles.AFM_Adjust;
a = get(hObject,'Value');
BadjAFMimage = imadjust(AFMimage,[],[], a);
handles.AFM_BAdjust = BadjAFMimage;
axes(handles.axes1); imshow(BadjAFMimage);
axes(handles.axes4); imhist(BadjAFMimage);
set(handles.slider_contrast,'Value',A);
set(handles.Ctext,'String',num2str(A));
imwrite(BadjAFMimage,'Enhanced contrast Image.jpg','jpg')
% Update handles structure
guidata(hObject, handles);
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Answers (1)
Walter Roberson
on 3 Feb 2014
For the Contrast slider: gamma. For the brightness slider, the amount to add to each component of each pixel.
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