Unlike the regular eraser tool that blanket erases everything in its stroke, the background eraser tool is selective. Makes them more or fully transparent, what we call 'erasing'. So if the eraser lowers the alpha of pixels in its stroke or sets it to zero, it Like the eraser tool theīackground eraser is a brush tool that reduces the alpha value of the pixels in its stroke. To use the background eraser tool effectively you need to understand how it erases pixels. The background eraser tool is a color based eraser. This is what the background eraser tool uses to remove parts of an image. What you use to decide what is sand in the image The sand in the background of the beach ball you are effectively removing the background. It simply erases the areas of color that you choose to be the background. Remove backgrounds in the strictest sense. This leads to the question, "Well, how does the background eraser tool remove the background?" The answer is the background eraser does not The parts of an image is purely subjective depending on what you want to extract from the image. Two butterflies in a field of flowers, a beach ball and bucket in the sand, each scene has its own complexity of background and subjects.
If you have five different pictures you can have five completely different and valid backgrounds and several subjects. Or what you would classify to be the subject for that matter. Some artificially intelligent tool that can determine by inspection what in an image you would consider to be the background, For starters, let us define what the background eraser tool is and what it is not.
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