test: Update image filtering tests
test: Update image filtering tests

This better reflects the code landed in PR #3856

Issue #3845

Change-Id: I301f1d70c7c52454c22c6d0ee7c9d1461d7e7691

tvoli/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,shaka-project/shaka-player,shaka-project/shaka-player,tvoli/shaka-player,tvoli/shaka-player,shaka-project/shaka-player