Textile, polymer & composite

Cover factor & open area

Optical open area, pore size distribution, and cover uniformity measured on the actual fabric.

Modalities:Transmitted lightFlatbed scanMicroscopy
Illustrative fabric imagery for Cover factor & open area
12.4%
Open area
3,180
Pores
96 µm
Median pore

Example outputs shown for illustration. Numbers depend on your samples and protocol.

What you get

Open area %
Pore count
Pore size distribution
Cover uniformity map

The measurement, today

Cover and openness are usually inferred from construction arithmetic or an air-permeability reading. Neither tells you where the fabric is open, or how the pores are distributed.

What it costs

Cover drives opacity, air permeability, hand, and print quality. Where a fabric is unexpectedly open, prints bleed and coatings strike through, and the fault is only found after finishing.

From image to reviewed result

  1. 1

    Backlight the fabric

    Capture a transmitted-light image so interstices read bright against the yarn.

  2. 2

    Threshold the openings

    Adaptive thresholding separates open interstices from yarn, without a fixed global cutoff.

  3. 3

    Measure the pores

    Each opening is measured for area and equivalent diameter; the distribution and median pore follow.

  4. 4

    Map uniformity

    Open area is reported per tile across the field so thin and dense regions are visible.

Scope: Reports optical open area measured from transmitted-light images. This is a geometric measurement, not an air-permeability test; correlate it against your permeability method before using it as a substitute.

Send a sample image and a measurement goal

We will show the closest ConductVision workflow and flag what needs custom validation for your images.