Algorithm
import { Algorithm } from '@banou/opencv-wasm'Use after await initOpenCV(). See the initialization and named imports guide.
Native object: release it with using or delete(). Factories can return null; check before calling methods.
example: samples/cpp/snippets/detect_blob.cpp An example using the BLOB to detect and filter region. This is a base class for all more or less complex algorithms in OpenCV
especially for classes of algorithms, for which there can be multiple implementations. The examples are stereo correspondence (for which there are algorithms like block matching, semi-global block matching, graph-cut etc.), background subtraction (which can be done using mixture-of-gaussians models, codebook-based algorithm etc.), optical flow (block matching, Lucas-Kanade, Horn-Schunck etc.).
Here is example of SimpleBlobDetector use in your application via Algorithm interface:
Constructors and members
clone
Create another handle to the same native object. This retains the object without copying its pixels or algorithm state; dispose both handles separately.
clone(): this;The this result.
clear
Clears the algorithm state
clear(): void;empty
Returns true if the Algorithm is empty (e.g. in the very beginning or after unsuccessful read
empty(): boolean;The boolean result.
save
Saves the algorithm to a file. In order to make this method work, the derived class must implement Algorithm::write(FileStorage& fs).
save(filename: EmbindString): void;filenamefilename argument (EmbindString).
getDefaultName
Returns the algorithm string identifier. This string is used as top level xml/yml node tag when the object is saved to a file or string.
getDefaultName(): string;The string result.
write
Stores algorithm parameters in a file storage
write(fs: FileStorage): void;fsfs argument (FileStorage).
write1
Stores algorithm parameters in a file storage
write1(fs: FileStorage, name: EmbindString): void;fsfs argument (FileStorage).
namename argument (EmbindString).
read
Reads algorithm parameters from a file storage
read(fn: FileNode): void;fnfn argument (FileNode).
These signatures describe this package. Upstream documentation can mention optional backends that are absent from this build. Check runtime compatibility before choosing a backend or file format.