Adobe Photoshop offers several different and amazing techniques to remove or edit the background of an image. For simple backgrounds that do not require much expertise, you can use the standard magic wand tool. While for complicated backgrounds that need a slightly professional touch, you can use the Background Eraser tool.
The Background Eraser Tool
The Background Eraser tool first samples the color to the center of the paintbrush and then erases pixels of an identical color as you ‘paint’. It would feel like painting with acid. Here is the step-by-step guide to using this tool.
Step 1: Open the image
Start by getting an image from which you want to remove the background.
Step 2: Using The Background Eraser Tool
Adobe’s Background Eraser tool first does the sampling of the color using the center of the paintbrush and as you paint, it erases pixels of a similar color. It would feel like it is acid you’re painting with! Here is the step-by-step guide to using this tool.
Step 3: Tune Your Tool Settings
On the options bar of the background eraser tool, select the round and hard brush. Well, the brush size will depend on the image you are working on for better function. You can use the square bracket key ([or]) to quickly scale your brush size according to the requirement.
After that, on the same tool options bar, set the Limits to Find Edges, Sampling to Continuous and Tolerance to around 20-25% is good to start with.
Note: A low tolerance restricts your eraser to the areas that are quite identical to your sampled color. While a high tolerance broadens the colors range that your eraser will select.
Step 4: Begin Erasing
Start erasing by bringing your brush over the background. You must check a brush-sized circle with little crosshairs in its center. Here, the crosshairs depict the ‘hotspot’ and readily delete that color from all the possible spots where it is appearing within the brush area. It also conducts smart color eradication at the edges of the foreground object(s) to remove ‘color halos’ that might be visible if the object is overlaid on another background.
When erasing the background, do zoom up your operational area and always try to prevent the crosshairs from overlapping on the edge of the foreground image. You would need to reduce the brush size in some areas to make sure that you don’t erase parts of your main image, accidentally.
Step 5: Choosing The Limit And Sampling Settings
Even though you used a smaller brush size, chances are that you might erase some chunks from your foreground subject by mistake.Therefore, for the foreground subject areas that share the same colors as the background, you would need to adjust the Limits and Sampling.
The Sampling: After the option samples the color beneath the crosshair, for an instance you click and it just doesn’t resample when you move the paintbrush along. With the Discontiguous Limit option, you can erase all pixels that are identical to the color that you’re erasing.