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Segmentación de umbral

La segmentación de umbrales es útil cuando la tarea clave es separar regiones oscuras de claras, aislar objetos en primer plano o preparar una imagen binaria para morfología, OCR, análisis de contornos o componentes conectados posteriores. Es uno de los pasos de preprocesamiento más comunes en la visión por computadora.

Segmente el primer plano del fondo con umbrales globales y adaptables para limpieza de documentos, generación de máscaras, separación de regiones y flujos de trabajo de binarización.

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Frequently Asked Questions

What is image thresholding?

Thresholding converts a grayscale image to binary (black and white) by comparing each pixel to a threshold value. Pixels above the threshold become white, below become black.

What is Otsu thresholding?

Otsu\

When should I use adaptive thresholding?

Adaptive thresholding is best for images with uneven lighting, shadows, or varying backgrounds. It calculates a different threshold for each local region of the image.

What are Niblack, Sauvola, Wolf, and NICK?

These are advanced local binarization methods from OpenCV ximgproc. They compute per-pixel thresholds using local mean and standard deviation. Sauvola and Wolf are generally better for document images. NICK works well with low-contrast text.

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