Editing the Background Mask

1. Click the Mask Editing button at the tool bar to access the Mask Editor panel.
   
2. Using the tools in the panel to paint on the unnecessary parts in the image to add mask on the image.
   
   There are two modes in the Mask Editor which facilitates you to quickly add mask to the image:
   • Auto Mode.
   • Manual Mode.
3. Click the OK button and the colored area of the image will be filtered out.

• Pan Tool: After you zoom in the image, you may press down this button and drag the image in order to pan to the desired area for modifying.
• Zoom Out: Click this button to zoom out the image for observing more of the image.
• Zoom In: Click this button to zoom in the image for better observing and modifying the details.

  Before zoom in	Zoom in for more easily modifying the details

• Actual Size: Click this button so the image will be shown in its original resolution.
• Fit to Window: Click this button so that the image will be zoom in or zoom out in order to just fit into the preview window.
• Magnify Tool: Press down this button and drag a rectangle around the desired area of the image in order to zoom in to the area for better observing and modifying the details.

  Drag a rectangle to surround the desired area	Zoom in for more easily modifying the details

If you wish to perfect your image mask, then you may pre-save your image with a pre-defined alpha channel. This can be done by means of an external image editor. Once you create your mask outside, simply load the image into CrazyTalk. The alpha channel information will automatically be applied as the background mask in the Background Mask Editing panel.

Adding and editing alpha channels in an external image editor (e.g. Photoshop)