Perspective Examples¶
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from easycv import Image, Pipeline
from easycv.transforms import Perspective, Select
For this example we will load an example image from the images folder.
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img = Image('images/hello.png')
img
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Perspective¶
To execute a perspective transform we just apply the Prespective Transform with the desired points to the image, for more information check the reference.
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points = [(71, 238), (354, 114), (470, 257), (186, 437)] # corners of the paper
img.apply(Perspective(points=points))
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We could also select the points with the Select Transform, for more information check the reference.
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points = img.apply(Select.point(n=4))["points"]
points
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[(71, 238), (352, 114), (470, 258), (187, 437)]
And then call as we did in the last example.
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img.apply(Perspective(points=points))
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We can also create a pipeline that selects and applies the perspective transform.
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pipe = Pipeline([Select.point(n=4), Perspective()])
pipe
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Pipeline (pipeline) with 2 transforms
1: Select (method=point, n=4)
2: Perspective (method=(...), points=(...))
This will open a window asking to select the points and then execute a perspective transform on the selected points.
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img.apply(pipe)
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