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How do you remove transparent pixels in Photoshop?
Use Image > Adjustments > Threshold and set the Threshold to 255, to remove all transparent pixels. Push Ctrl+i (or if on mac Cmd + i) to inverse the mask. Exit Quick Mask Mode with Select > Edit in Quick Mask Mode. Make sure the layer is selected and press Delete to remove the transparent pixels.
How to make a color swatch transparent in Photoshop?
Press Ctrl+Alt+Shift+S to bring up the “Save for Web” interface. Select “Ping-8” as the file type. Click on the color swatch that you want to be transparent. With the desired swatch selected, click the “Maps selected colors to transparent” option at the bottom of the Color Table window.
How can I remove pixels from an image?
With the desired swatch selected, click the “Maps selected colors to transparent” option at the bottom of the Color Table window. Click Save. You can’t remove those pixels, the image will always have an original rectangular size. The problem then lies with how the application you use renders the image.
How to use PIL to make all white pixels transparent?
Since this is currently the first Google result while looking for “Pillow white to transparent”, I’d like to add that the same can be achieved with numpy, and in my benchmark (a single 8MP image with lots of white background) is about 10 times faster (about 300ms vs 3.28s for the proposed solution). The code is also a bit shorter:
How to move, copy and delete selected pixels in Photoshop?
1 Select the area you want to copy. 2 Choose Edit > Copy, or Edit > Copy Merged. See More…
How can I delete a color from an image?
Grab the Select By Color tool by clicking on the icon highlighted above, or by simply pressing Shift + O on your keyboard. As previously mentioned, simply click on a segment of the image that contains the color you’d like to delete.