plotting matrix to image

hi KAMALESH,

solution 2 ur second problem is:

I = imread('picture.png');

this image "picture.png' should be in work directory. You can specify any file format allowed in matlab. plz tell me if this helps you.

regards

humera

>From: "S.KAMALESH VIVEK" <c...@yahoo.co.in> >To: mat lab <m...@yahoogroups.com> >Subject: [matlab] plotting matrix to image >Date: Wed, 27 Apr 2005 04:58:19 +0100 (BST) > > >hi friends, > I need to plot a matrix data (2-Dimensional-MxN) stored in a variable (say a) to an image. i just used, size of a is 751x550 > > >figure,imshow(a). > >But the image i got was scalled automatically to 56% as the system was unable to show the full size. Due to this the image gets compressed along the longitudinal axis.This prevents me in analysingsome information in the image. >what i think is the aspectratio of the image is not locked. > >If there is anyway to show the image at 100% or get a scaled image with locked aspect ratio. > >the second thing is i need to know how to store the image displayed by image or images function to a variable > >please help me >thanks in advance >bye >s.kamalesh vivek > > >FRIENDSHIP NEVER FAILS > S.KAMALESH VIVEK > > >

Namaste Mr. S.KAMALESH VIVEK

 

if you receive

 

    Warning: Image is too big to fit on screen; displaying at nn% scale.
   

the problem is that "imshow" is only for intensity vector in pictures, you can use instead "image" for matrix to image translation.

For better results you can normalize the matrix to 128 or 256 levels.

 

>>A= a*127/max(max(a))

>>image(A)

>>colormap(gray(128))

>>save ImageMatrixName.mat A % ??? 2nd question that I dont understand, you have this variable... 

 

 

Best Regards

 

Henry