About Visualization Filters
Visualization filters filter the data for only one visualization.
As an author, you usually add and set workbook and canvas filters in the filter bar to broadly limit the data in your workbook, see Use the Workbook Filter Bar. You can then add and configure dashboard filters on each canvas to allow consumers to select their own filter values to view the data in the visualizations on that canvas, see Use Dashboard Filters.
Oracle Analytics offers another, narrower filter scope in the form of visualization filters which you can add so that a user can select the values they want to see in that particular visualization without affecting the rest of the workbook. You can also set visualization filters yourself and then hide them from the consumer, see Show or Hide a Visualization Filter in Present.