Which is the best definition of value? a. the tactile surface quality of an object b. the lightness or darkness of a color or surface c. the use of expensive materials to make an artwork d. the intensity or concentration of pigment in a color

If your choices are: -cropping  -anti-aliasing-imperfection-contrastdownsampling is done to decrease the bit rate when transmitting over a limited bandwidth or to convert to a more limited audio format. this is the opposite of upsampling. so the answer is contrast.