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.

KeywordSuffixZip
filtered-binary-image.json034-filtered-binary-image.json
filtered-binary-image.dat035-filtered-binary-image.dat

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.

Binary data

Binary data has the same structure as for binarized image.

Example: 035-filtered-binary-image.dat

Json

Json data describes basic properties of the binary data, most importantly dimensions of the image.

Example: 034-filtered-binary-image.json

{
  "axes": [
    "y",
    "x"
  ],
  "dimensions": [
    374,
    388
  ],
  "scalar": "boolean",
  "bitness": 8,
  "format": "false as 0, true as 1"
}