When editing a GIF image via Photoshop earlier I needed to blur out a couple items in an image I had taken however I was unable to use the Photoshop filters that I typically use to do so. Each of the Photoshop filter menu items were greyed out and Photoshop would not let me select any of them. Use the information below to modify the Mode and enable the ability to use the Photoshop filters.
Photoshop Filters Greyed Out:
Modify Image Mode To Enable Photoshop Filters:
To provide the ability in Photoshop to use the Filters you can typically change the image Mode to RGB and the bits to 8 as shown in the below example image. The first image below shows image Mode settings that will not allow Photoshop Filters to be used and the second image shows modifications made to the image Mode that will allow the Photoshop filters to be used.
Photoshop Image Mode That Blocks Photoshop Filters: Indexed Color
You can modify the image Mode by simply selecting the Mode you prefer from the menu shown in the above image. In this example the image Mode needed to be set from Indexed Color to RGB to be able to use the Photoshop Filters as shown in the below example image.
Photoshop Image Mode Set From Indexed Color To RGB:
After the image Mode has been changed from Indexed Color to RGB the Photoshop Filters should be enabled in the Filters menu as shown in the below example image.
Photoshop Filters Are No Longer Greyed Out:
So if you ever attempt to use the Photoshop Filters and they are greyed out be sure to see what the image mode is set to before attempting to modify anything else.