why the image is not display in the output?
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
lambda=500e-9;
k=(2*pi)/lambda;
a=1e-6;
Io=100.0;
R=1.0e-3;
Y=(-0.25e-2:1e-5:0.25e-2); Z=Y ;
I(1:length(Y),1:length(Z))=0;
for i=1:length(Y)
for j=1:length(Z)
q=(Y(i).^2+Z(j).^2).^0.5;
w = 0.05;
I(i,j)=Io.*exp(-((q.^2)./w^2));
end
end
imshow(I)
1 Kommentar
Antworten (1)
Mathieu NOE
am 30 Aug. 2022
hello
Your I array has not much delta between min (99.5) and max value (100), so you need to help imshow autoscale its range to these min / max values;
figure(1),imshow(I,[]) % grayscale display , zoomed in min / max I range
% IMSHOW(I,[]) displays the grayscale image I scaling the display based
% on the range of pixel values in I. IMSHOW uses [min(I(:)) max(I(:))] as
% the display range, that is, the minimum value in I is displayed as
% black, and the maximum value is displayed as white.
%% alternative
figure(2),imagesc(I) ; % automatic image scaling
0 Kommentare
Siehe auch
Kategorien
Mehr zu Image Processing Toolbox finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!