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update painter for transparent background

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gaomingqi
2023-04-15 13:28:12 +08:00
parent d7cdabd8fc
commit 8c743fc94f
1 changed files with 19 additions and 0 deletions
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19
tools/painter.py
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@@ -156,6 +156,20 @@ def mask_painter(input_image, input_mask, mask_color=5, mask_alpha=0.7, contour_
return painted_image
def background_remover(input_image, input_mask):
"""
input_image: H, W, 3, np.array
input_mask: H, W, np.array
image_wo_background: PIL.Image
"""
assert input_image.shape[:2] == input_mask.shape, 'different shape between image and mask'
# 0: background, 1: foreground
mask = np.expand_dims(np.clip(input_mask, 0, 1), axis=2)*255
image_wo_background = np.concatenate([input_image, mask], axis=2) # H, W, 4
image_wo_background = Image.fromarray(image_wo_background).convert('RGBA')
return image_wo_background
if __name__ == '__main__':
input_image = np.array(Image.open('images/painter_input_image.jpg').convert('RGB'))
@@ -194,3 +208,8 @@ if __name__ == '__main__':
# save
painted_image = Image.fromarray(painted_image_2)
painted_image.save('images/point_painter_2.png')
# example of background remover
input_image = np.array(Image.open('images/original.png').convert('RGB'))
image_wo_background = background_remover(input_image, input_mask) # return PIL.Image
image_wo_background.save('images/image_wo_background.png')