![]() To create a channel that specifies a maximum capacity, call Channel.CreateBounded. Bounding strategiesĭepending on how a Channel is created, its reader and writer behave differently. These options control the behavior of the channels, such as how many elements they're allowed to store and what happens if that limit is reached, or whether the channel is accessed by multiple producers or multiple consumers concurrently. The primary difference is that this collection manages synchronization and provides various consumption models through factory creation options. Try to think of channels as you would any other common generic collection type, such as a List. ![]() In other words, this model hands off data from one party to another. In this programming model, producers asynchronously produce data, and consumers asynchronously consume that data. Producer/consumer conceptual programming modelĬhannels are an implementation of the producer/consumer conceptual programming model. NET Core 3.0 or later, the package is included as part of the framework. This library is available in the NuGet package. Polygons around islands of low- or high-valued elements.The namespace provides a set of synchronization data structures for passing data between producers and consumers asynchronously. Indicates whether the output contours will produce positively-oriented Takes dictionary of inputs, e.g.:įunc_kwargs= Notably useful for passing dtypeĪrgument to np.mean. cval floatĬonstant padding value if image is not perfectly divisible by the Primary functions are numpy.sum, numpy.min, numpy.max, This function must implement an axis parameter. block_size array_like or intĪrray containing down-sampling integer factor along each axis.įunction object which is used to calculate the return value for each This function is useful for max and mean pooling, for example. ![]() block_reduce ( image, block_size=2, func=, cval=0, func_kwargs=None ) # Returns : coords (M, 2) arrayĪpproximated polygonal chain where M <= N. If tolerance is 0, the original coordinate array Maximum distance from original points of polygon to approximated Note that the approximated polygon is always within the convex hull of the It is based on the Douglas-Peucker algorithm. approximate_polygon ( coords, tolerance ) # Total least squares estimator for N-dimensional lines. Total least squares estimator for 2D ellipses. Total least squares estimator for 2D circles. Subdivision of polygonal curves using B-Splines. Measure properties of labeled image regions.Ĭompute image properties and return them as a pandas-compatible table.Ĭalculate the Shannon entropy of an image. Return the intensity profile of an image measured along a scan line.įit a model to data with the RANSAC (random sample consensus) algorithm. Test whether points lie inside a polygon. Marching cubes algorithm to find surfaces in 3d volumetric data.Ĭompute surface area, given vertices and triangular faces.Ĭalculate all raw image moments up to a certain order.Ĭalculate all central image moments up to a certain order.Ĭalculate Hu's set of image moments (2D-only).Ĭalculate all normalized central image moments up to a certain order.Ĭalculate Pearson's Correlation Coefficient between pixel intensities in channels.Ĭalculate total perimeter of all objects in binary image.Ĭalculate total Crofton perimeter of all objects in binary image. Manders' colocalization coefficient between two channels. Label connected regions of an integer array. Test whether points on a specified grid are inside a polygon.Ĭompute the inertia tensor of the input image.Ĭompute the eigenvalues of the inertia tensor of the image.įraction of a channel's segmented binary mask that overlaps with a second channel's segmented binary mask. Approximate a polygonal chain with the specified tolerance.ĭownsample image by applying function func to local blocks.Ĭompute a metric that indicates the strength of blur in an image (0 for no blur, 1 for maximal blur).Ĭalculate the Euler characteristic in binary image.įind iso-valued contours in a 2D array for a given level value.
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