matrix size and figure size(in pixel)

Hi everyone.

I'm stuggle to convert matrix to figure with saveas function.

I have 37*400 double matrix A. And I want to convert this matrix to image.

So, I tried to :

imshow(A,[])

saveas(gcf,'filename.png')

When I read this saved figure with imread('filename,png'), the matix size is 200*893*3 uint8.

But I want to get image which has same size with matrix A (37*400). How can I fix this problem????

Thank you,.

Answer 1

[MK kim]

I solved this problem!

not using saveas(gcf,'filename.png')

instead using imwrite(uint8(A),filename.png')

So you don't have to answer my question!