HI,i want user defined band of image in multiband image processing in GUI in matlab.In the belowUI code ,it is default selected band as 4,3,2 ,but i want this to be user defined in GUI.

c = multibandread('paris.lan', [512, 512, 7], 'uint8=>uint8',...
                    128, 'bil', 'ieee-le', {'Band','Direct',[4 3 2]});
imshow(c)

[Aarti Dwivedi]

https://www.mathworks.com/help/matlab/ref/ginput.html If you are looking to get user input from mouse please check the above link to see if it fits your needs.

[deepika]

Thanks. I got this.

Answer 1

[Image Analyst]

Have 3 edit fields, one for each ban. The user can type into it. If you're using GUIDE, you can do

band1 = str2double(handles.edtBand1.String);
band2 = str2double(handles.edtBand2.String);
band3 = str2double(handles.edtBand3.String);
bandsToUse = [band1, band2, band3];
multiBandImage = multibandread('paris.lan', [512, 512, 7], 'uint8=>uint8',...
                    128, 'bil', 'ieee-le', {'Band','Direct',bandsToUse });
imshow(multiBandImage)

[deepika]

Thank you. but i want pixels range to be user defined. the code given below:

im=multibandread('paris.lan',[512,512,7],'uint8=>uint8',... 128,'bil','ieee-le',{'Band','Direct',[x,y,z]}); Nof_bands=7; for k=1:Nof_bands t_value=u(:,:,k);

        x(k)=double(t_value(38,333));
        y(k)=double(t_value(38,334));
        z(k)=double(t_value(39,333));
        b(k)=double(t_value(39,334));
        x1(k)=double(t_value(486,115));
       y1(k)=double(t_value(486,116));
       z1(k)=double(t_value(487,115));
       b1(k)=double(t_value(487,116));
       avg(k)=double(x(k)+y(k)+z(k)+b(k))/4;
    avg1(k)=double(x1(k)+y1(k)+z1(k)+b1(k))/4;

 end
d=[1:1:7];
axes(handles.axes1);
plot(d,avg,'r',d,avg1,'g');

[Image Analyst]

See this link to format your code properly.

You can do the same thing with edit fields for user input. Or you can display one frame and ask the user to draw a box over it with imrect() or rbbox().