Multiple image objects extracted from spritesheets or one-two object for all?

Question

Let's say I want to make a 2D game and I'll use a spritesheet containing all of the animation frames and a texture-atlas for static sprites such as walls, non-animated decorations...etc.

Should I create separate image objects for all the static sprites and for all animation-rows or should I just pass the on-texture-atlas (or on-spritesheet) coordinates for them?

Which solution, or "direction" is considered elegant in game-development?

Thanks for the help! :)

Some pseudocode:

Separate image objects:

Class StaticSprite {
  Image texture;

  // ...

  public Image getImage() {
     // ...
  }

  public static final CheckedWall cw = new CheckedWall( -- checked wall grid extracted from the texture-atlas -- )
  public static final WoodWall ww = new WoodWall( -- wood wall grid extracted from the texture...
}

Or:

class StaticSprite {
 int texX, texY, size;

 // ...

 public Image getImage() {
    // gives the part of the spritesheet
 }

 public static final WoodWall ww = new WoodWall( -- coordinates for the texture-atlas -- )
}

Assuming that the spritesheet is accessible for all these sprite-related classes.

Answer 1

Most of the time you should go for a hybrid approach, seperating by character\tileset\what have you.

This way you dont have to load up a giant file, which would be much slower if you dont load the full game graphics all at once, and would use up less memory at once.