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Hello. |
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Hi @jpka-, You do this by expanding the input image and cropping the output, for example (in python): image = image \
.embed(2, 2, image.width + 5, image.height + 5, extend="background", background=[1,2,3]) \
.rank(5, 5, 0) \
.crop(2, 2, image.width, image.height)It sounds a little inefficient, but libvips is demand-driven, so it'll only compute the pixels it needs for the output.
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Yes, it works. |
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Hi @jpka-,
You do this by expanding the input image and cropping the output, for example (in python):
It sounds a little inefficient, but libvips is demand-driven, so it'll only compute the pixels it needs for the output.
im_rankis the old vips7 interface, it'svips_rank()now:https://www.libvips.org/API/current/method.Image.rank.html