Info
La pregunta está cerrada. Vuélvala a abrir para editarla o responderla.
issue with imshow ploting
2 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
I am trying to plot/show an image with the certain parameters, but it doesn't show. Only the contour. Does anyone know how I can resolve my image to be shown the the parameters and contour? Thanks in advance
imshow(image,'Border','tight','InitialMagnification',100)
colormap(gray)
hold on
contour(phi,[0 0],'r')
0 comentarios
Respuestas (2)
Brian B
el 4 de Mzo. de 2013
It is probably a scaling issue. What are the sizes of image and phi?
9 comentarios
Brian B
el 4 de Mzo. de 2013
Editada: Brian B
el 4 de Mzo. de 2013
By default, imshow expects values between 0 and 1. You can normalize your matrix, or you can explicitly tell it what range to map to the coloraxis (using 'DisplayRange' or the bracket notation above, but with the min and max values as in [-7 255]), or you can tell it to map the whole range by passing in the empty brackets as I did above.
Image Analyst
el 4 de Mzo. de 2013
It's not clear if you meant
min(image(:)) = 7
or
min(image(:)) = -7
But either way you can do
imshow(yourImage, []);
It's also a bad idea to call your image "image" because it would blow away the built in image() function. I hope you didn't do that.
1 comentario
Brian B
el 4 de Mzo. de 2013
True! I read it so quickly I didn't even notice the missing "=".
On the same note, as a control engineer I am always appalled when examples in the MATLAB documentation assign the output of a function testing some true or false condition to a variable named tf! Where are your transfer functions, now?
La pregunta está cerrada.
Ver también
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!