ardneh Posted July 4, 2022 Share Posted July 4, 2022 (edited) Convert a horizontal strip to semicircular arc. Plugin needed - Polar Transformation Image used: This example image is 1024 X 341. Open the image in paint.net. Expand the canvas to a square with dimensions of twice the horizontal pixels of the original image, anchored bottom-center. Magic Wand the alpha. Invert selection. Ctrl+I Make the Move Selected Pixels tool active. Move the selected pixels up 1 pixel using the up-arrow key on the keyboard. Now grab the top-center Control Nub and stretch the selected pixels to 4 times their original height. Deselect. Apply the Polar Transformation plugin set to: Transform rectangular to polar. Resize the image to 50%. If you wish to invert the arc: Image > Flip Vertical Edited July 4, 2022 by ardneh 4 1 1 Quote Link to comment Share on other sites More sharing options...
mindshift Posted July 26, 2022 Share Posted July 26, 2022 Thank you so much! I have been trying to figure out how to do this forever. 3 Quote Link to comment Share on other sites More sharing options...
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