When it comes to image processing tasks, one needs to apply edge detection at some point. Edge detection means identifying and highlighting the boundaries or transitions between different regions in an image due to variety in brightness or intensity.
What is edge detection in image processing?
There are edge detection algorithms used to locate the boundaries of documents within a larger image. This enables efficient cropping, perspective correction and image extraction.
Typical approaches for document edge detection are Sobel Edge Detector, Canny Edge Detector and TensorFlow Edge Detector, which will be explained shortly in the following article:
https://sdk.docutain.com/blogartikel/edge-detection-for-image-processing
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