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The most common version of the census transform uses a 3x3 window, comparing each pixel with all its 8-connected neighbours with a function defined as (, ′) = {> ′ ′.The results of these comparisons are concatenated and the value of the transform is an 8-bit value, that can be easily encoded in a byte.
Cropping is the removal of unwanted outer areas from a photographic or illustrated image. The process usually consists of the removal of some of the peripheral areas of an image to remove extraneous visual data from the picture, improve its framing, change the aspect ratio, or accentuate or isolate the subject matter from its background.
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Benedict Cumberbatch recently participated in Variety’s “Know Their Lives” video series and shared some regret over his controversial role in Ben Stiller’s “Zoolander 2.” The “Doctor ...
The process of Canny edge detection algorithm can be broken down to five different steps: Apply Gaussian filter to smooth the image in order to remove the noise; Find the intensity gradients of the image
The Sobel–Feldman operator, while reducing artifacts associated with a pure central differences operator, does not exhibit a good rotational symmetry (about 1° of error). Scharr looked into optimizing this property by producing kernels optimized for specific given numeric precision (integer, float…) and dimensionalities (1D, 2D, 3D).