If you'd like to set a filter for your photos, go to 'Photo settings' in the sidebar of the GoPhoto - CMS and choose 'Photo filters'. Here you can add a filter by clicking 'Add photo filters' and open the settings by clicking the pencil at the right end of the line.
Here you can set the filters you need for your photos such as: brightness, contrast, noise, saturation, pixelate and blur. Whenever you make a change, the preview updates so you can see the result of the filters.
''Click 'save' when you are done and don't forget to select your filters to activate them''