Remove black background in a translated png plot

As in this picture, when i translate a png in a plot i get a black backgroung where the plot is not filled with the png. how can i set the color to white instead of black?

[Les Beckham]

How did you translate the image? Show the code you used, or describe the GUI plot interaction that resulted in the undesired result. That should help in narrowing down to a possible solution.

Answer 1

[Kevin Holly]

I = imread("cameraman.tif");
imshow(I)
title("Original Image")

J = imtranslate(I,[15, 25],'FillValues',255); %Add Fill Values here
imshow(J)
title("Translated Image")

J = imtranslate(I,[15, 25]); % Without it Fill Values
imshow(J)
title("Translated Image")

[Gabriele Dominioni]

Thanks a lot!