Filtered binary image

SourceAFIS » Algorithm » Transparency » Filtered binary image

Filtered binary image, a part of algorithm transparency, is computed during feature extraction from binarized image by applying various filters. Filtered binary image and its inverted version is used as binarized skeleton image.

Key	MIME	Filename in ZIP
`filtered-binary-image`	`application/cbor`	`020-filtered-binary-image.cbor`

Visualization

Filter visualization below was created by comparing this stage's binary data with binarized image. Visualization itself is not part of transparency data.

Filtered binary fingerprint image with changed pixels marked green and red — Filtered binary fingerprint image. Green pixels were added and red pixels were removed by the filter.

Format

Filtered binary image has the same format as binarized image.

Example: 020-filtered-binary-image.cbor

{
  "width": 388,
  "height": 374,
  "cells": [
    false,
    false,
    "... skipped 145,108 items ...",
    false,
    false
  ]
}