shrinking photos & printing question
 

was playing with my dads gifts ^^

to print some photos


the photos are 8x10 and id like to print something like 4x5

but the thing is after i go to image>image size and switch the canvas size down, in photoshop, and print

the shrinked/printed image comes out with all sorts of.. what looks like compression artifacts and grain that's not there when i print the image at its regular size (mind u the shrinked image on my monitor doesn't show any artifacts or grain)

is there some filter im supposed to run after shrinking or am i supposed to shrink images in a different way or what? im pretty confused

:confused:


thx