Convert matrix to image and image to matrix

Hi, I have a matrix with values between 1 - 10, and I would like to transform that in a kind of image.

and after that, I would like transform the image into the same previous matrix.

Could someone help me?

Answer 1

[Walter Roberson]

AsImage = uint8(YourMatrix .* (255/10));
BackAsMatrix = double(AsImage) .* (10/255);

[Fernando Silveira]

Thanks. But what if I want to save the image(.png, .bmp, .jpg, I don't know...) and then open (or read) it?

[Walter Roberson]

imwrite() and imread()