Saving the HOG feature as an image variable in matlab

May I know how can I save the "plot(hogVisualization); " as an image .jpg and put it into the variable. so that i can imread to retrieve it.

Res_upright_bodyfront = imresize(Res_upright_bodyfront, [64 128]); [featureVector,hogVisualization] = extractHOGFeatures(Res_upright_bodyfront);

plot(hogVisualization);