--- title: "How To REMOVE White BACKGROUNDS In Davinci Resolve" author: "Sarah Williams" category: Tutorials excerpt: "Learn how to instantly remove solid white backgrounds from logos, graphics, and videos in DaVinci Resolve using the Luma Keyer and Composite Modes." --- To remove a solid white background from a graphic, logo, or video clip in DaVinci Resolve, you must use the Color page's Luma Keyer to isolate the bright pixels and an Alpha Output to make them transparent. Alternatively, for simple black-and-white graphics, changing the Composite Mode on the Edit page to "Multiply" or "Darken" will instantly drop out the white background without needing a complex node setup. ## What is white background removal (Luma Keying)? White background removal is the process of isolating the darkest elements of an image (the subject or text) and rendering the brightest elements (the solid white background) completely transparent. This is fundamentally different from a green screen (Chroma Key), which removes a specific color. Removing white is based entirely on luminance (brightness). It is heavily used to overlay downloaded stock graphics, scanned handwriting, ink splatters, or company logos that were incorrectly supplied as JPEGs instead of transparent PNGs. ## How to instantly remove white backgrounds using Composite Modes? If your graphic is pure black and white (like a scanned signature, a barcode, or a black logo on a white background), you do not need to use the Color page at all. The fastest method is changing the blend mode. 1. **Place the Clips:** On the Edit page timeline, place your main video on Video Track 1 (V1) and the graphic with the white background on Video Track 2 (V2). 2. **Select the Graphic:** Click the clip on V2. 3. **Open the Inspector:** Click the "Inspector" button in the top right corner. 4. **Locate Composite Mode:** Scroll down the "Video" tab to the "Composite" section. 5. **Change the Mode:** Click the "Composite Mode" dropdown and change it from "Normal" to "Multiply" (or "Darken"). 6. **Result:** The white pixels will instantly vanish, leaving only the black graphic perfectly overlaid onto your V1 video. ## How to remove a white background using the Luma Keyer? If your graphic contains colors (e.g., a red logo on a white background), the Multiply blend mode will alter the colors of the logo. To preserve the original colors while removing the white, you must use a Luma Key on the Color page. 1. **Navigate to the Color Page:** Select the clip on V2 and click the "Color" tab at the bottom. 2. **Open the Qualifier:** In the middle toolbar, click the "Qualifier" icon (the eyedropper). 3. **Switch to Luma Mode:** At the top of the Qualifier panel, click the "LUM" tab (Luminance) to disable Hue and Saturation tracking. 4. **Isolate the White:** Look at the Luminance sliders at the bottom. Drag the "Low" slider all the way to the right (around 95-100). The image will turn black, indicating you have isolated only the brightest white pixels. 5. **Invert the Selection:** In the Qualifier panel, click the "Invert" icon (a circle half-filled, half-empty) so the logo is selected and the white background is ignored. 6. **Add Alpha Output:** Right-click the empty grey area in the Node Graph (top right) and select "Add Alpha Output." A blue dot will appear. 7. **Connect the Node:** Drag a line from the blue square on your node to the new blue Alpha Output dot. The white background is now transparent. ## How to clean up harsh edges after a Luma Key? When removing a white background, the edges of your logo or subject often retain a thin, jagged white halo, especially if the original image was heavily compressed. To refine the edges of the Luma Key: * **Matte Finesse:** In the Qualifier panel, open the "Matte Finesse" section. * **Clean White/Black:** Adjust the "Clean Black" slider to remove stray white pixels left in the background. Adjust "Clean White" to fill in any holes inside the logo. * **Blur Radius:** Increase the "Blur Radius" slightly (e.g., 1.0 or 2.0) to soften the harsh, jagged edge of the key. * **In/Out Ratio:** Drag the "In/Out Ratio" slightly negative. This "chokes" the mask inward, effectively eating away the thin white halo surrounding the graphic. ## How to use the 3D Keyer for complex backgrounds? If the background is not pure white (e.g., an off-white wall or a gradient), the basic Luma Keyer may struggle to separate it cleanly from the subject. 1. **Open the 3D Keyer:** On the Color page, go to the Effects Library, search for "3D Keyer" (`Resolve FX Key`), and drag it onto a new node. 2. **Sample the Background:** In the viewer, click and drag the eyedropper tool over the off-white background. 3. **Refine the Selection:** Draw a line across the different shades of white. The plugin uses advanced algorithms to build a complex matte. Connect the Alpha Output, and refine the edges using the built-in Despill and Matte Finesse controls in the Inspector. ## How to speed up graphics workflows? Dealing with incorrect file formats (like JPEGs instead of PNGs) and keying out backgrounds is a massive time sink during the editing process. Professional editors avoid bogging down their workflow by pre-editing: * **Edit First, Composite Last:** They upload raw footage to [Cutsio](https://cutsio.com), extract the narrative structure via XML, and build the structural edit in DaVinci Resolve. * **Place Graphics:** They drop all the white-background graphics onto V2. * **Batch Apply Keys:** Once the edit is locked, they go to the Color page, build the Luma Key on the first graphic, and then simply copy/paste that node grade to all the other graphics in the timeline, removing the white backgrounds across the entire project in seconds. ## Frequently Asked Questions (FAQ) ### Can I remove a black background using the same method? Yes. To remove a solid black background, use the Edit page Composite Mode and select "Screen" or "Add." If using the Color page Luma Keyer, simply drag the "High" luminance slider to the left to isolate the dark pixels, invert the selection, and add an Alpha Output. ### Why did the colors in my logo change when I used Multiply? The "Multiply" blend mode mathematically multiplies the luminance values of the top layer with the bottom layer. While it effectively hides white (value 1.0), it will darken any colors present in the graphic. To preserve the original colors of a logo, you must use the Color page Luma Key method instead of blend modes. ### Why is there a white fringe around my graphic? A white fringe (halo) means the Luma Key did not perfectly separate the edge pixels. Go back to the Color page Qualifier, open the Matte Finesse tab, and drag the "In/Out Ratio" into the negative numbers to shrink the mask inward and remove the fringe. By mastering Composite Modes for black-and-white graphics and the Luma Keyer for colored graphics, you can instantly remove solid white backgrounds and seamlessly composite elements in DaVinci Resolve.