Position & Size

Checking alignment

• Get the bounding box of the elements expected to be aligned.
• Compare the value of the side(s) (left, top, right, and/or bottom) expected to be aligned.

Measuring distance

• Get the bounding box of the elements between which to measure the distance.
• Compute the absolute value of the difference of the two sides between which to measure the distance.

Measuring position and size (bounding box)

• OpenCV Contours

Borders

Measuring border width

• Get the outer bounding box of the target element.
• Get the inner bounding box of the target element. -> How?
• Compute the distance between each matching sides of the two bounding boxes.

Measuring border radius

Typography

Identifying font color

• Identify pixels that are text. -> How?
• Sample the color for each text pixel.
• Take the mode color of the text pixels. -> How well does the mode work for small text with anti-aliasing?

Identifying font family

• Classifier model trained for this task?

Identifying font size

Identifying font weight