PS: I am using Photoshop CC 2019 on Windows 10. So does Photoshop has the functionality to apply Background Eraser Tool in a flood filling way like Paint Bucket Tool fills a region? Thank you. Removing The Background With The Background Eraser Tool. Then, click and drag over the background, and the tool will erase the pixels based on the contrast between the subject and background. It can save me (and other non-artistic users who do not possess a tablet) a lot of work and possible missing of background pixels I did not erase by hand. To use the Background Eraser tool, select it from the toolbar and adjust the brush size and hardness in the options bar. As a C++ programmer, I can't help expect that the Background Eraser Tool can detect the background pixel automatically and proceed using a BFS flood filling algorithm, just like what Paint Bucket Tool (it used to be called fill tool, but now it changes its name to something strange, which cost me quite a while to find) does. It works but I feel that the Background Eraser Tool is hard to use because I have to manually erase the background with a mouse. I fumbled out the following approach to this task (if I were the designer of Color Picker, I would definitely add a transparency color button in the dialog):ġ) Unlock the background layer of the imageģ) Use Paint Bucket Tool to fill the new layer with a distinguishable colorĤ) Use Background Eraser Tool to erase the background of the image Drag over the parts of the image you want to erase. Use the tool options bar to customize tool settings, like Size and Hardness, to get the effect you want. My task is to turn white background into transparency. The Eraser tool can make pixels transparent or match them to the image background color.
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