 object together
with a scale (e.g., ruler, micrometer...)."><meta property="og:description" content="Calibrating the actual size is possible if any interlandmark distance on the
image is known. calibrate() can be used to determine the size of a known
distance (cm) on the graph. I invite users to photograph the object together
with a scale (e.g., ruler, micrometer...)."><meta property="og:image" content="https://nepem-ufsc.github.io/pliman/logo.png"></head><body>
    <a href="#main" class="visually-hidden-f