Form an image of vertical ramp having a ramp values from 0 to 255 and dimension 256x256.
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scripy for that???
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John BG
il 25 Gen 2017
Pravin
this is ramp
A=uint8(repmat([0:1:255]',1,256))
imshow(A)
.
you can save the image in JPEG format:
.
imwrite(A,'ramp.jpg')
.
if this is the kind of ramp you are looking for would you please be so kind to mark my answer as Accepted Answer?
To any other reader, please if you find this answer of any help solving your question,
please click on the thumbs-up vote link,
thanks in advance
John BG
8 Commenti
Guillaume
il 26 Gen 2017
@John,
As pointed out by Image Analyst, it is a default install of the latest version, R2016b, that gives the warning.
As for 2017-prerelease, as per the NDA you implicitly agreed to if you downloaded it, we're not allowed to talk about it.
Più risposte (1)
Jorge Mario Guerra González
il 24 Gen 2017
Modificato: Jan
il 26 Gen 2017
I suppose you want a ramp horizontally, since you only want values from 0-255 in a 256x256 matrix. Filled with integers.
X=uint8(0:255);
x=meshgrid(X,X);
imshow(x, [])
3 Commenti
Jorge Mario Guerra González
il 25 Gen 2017
Modificato: Jorge Mario Guerra González
il 25 Gen 2017
Sorry I wrote the code before without using matlab.
X=0:255;
x=meshgrid(X,X);
imshow(x,[]) %although it uses more memory
that one works as well using imshow(x,[ ]), I corrected it
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