Margin Width Balance Percent Deviation Calculator
Report signed margin differences divided by margin totals, not a grading-service centering score. Caller independently verifies observations, reference edition, units and applicability; not a grading-service certificate, authentication, conservation treatment, actual market price or legal/insurance entitlement.
Description
Margin balance compares opposite borders around the printed design using their sum as a normalization.
Margin balance compares opposite borders around the printed design using their sum as a normalization.1
This calculator retains signed horizontal and vertical deviations, so the direction of imbalance remains visible.
When to use Margin Width Balance Percent Deviation Calculator
Use this tool when you need to summarize the supplied collecting records or matched observations. Prepare independently verified observations, reference edition/context, and matching units or currency basis.
How to use Margin Width Balance Percent Deviation Calculator and understand its results
- Prepare independently verified observations, reference edition/context, and matching units or currency basis.
- Enter leftMarginMm, rightMarginMm, topMarginMm, bottomMarginMm, following the field table and calculation rules below, then run the tool.
- Read horizontalSignedBalancePercent, verticalSignedBalancePercent. For result objects, inspect the nested output fields below, including any missing evidence or selected indices.
- Correct any input issues and run again. Before using a successful result, review its units, signs, evidence coverage, and stated model or reference assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| leftMarginMm | Left margin mm | number | Required |
| rightMarginMm | Right margin mm | number | Required |
| topMarginMm | Top margin mm | number | Required |
| bottomMarginMm | Bottom margin mm | number | Required |
Require four nonnegative margins with positive left+right and top+bottom totals. Return one hundred times left−right over left+right and top−bottom over top+bottom. It does not average them into a grade or choose a design center from an image.
horizontal=100(L−R)/(L+R); vertical=100(T−B)/(T+B) Read these symbols with the field meanings and branch or reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| horizontalSignedBalancePercent | Horizontal signed balance percent | number |
| verticalSignedBalancePercent | Vertical signed balance percent | number |
{
"input": {
"leftMarginMm": 2,
"rightMarginMm": 4,
"topMarginMm": 3,
"bottomMarginMm": 3
},
"output": {
"horizontalSignedBalancePercent": -33.333333333333336,
"verticalSignedBalancePercent": 0
}
}Limitations and assumptions
Observations, reference edition, and applicability are independently supplied. Arithmetic and reference summaries do not provide authentication, a certified grade, or an actual market price.
Missing required fields, unknown fields, wrong types, and violated calculation rules return input issues. Numeric values must be finite; nonfinite numeric outputs are rejected.
Alternative or Complementary methods
For a related task, use Centering Grade Scorer (superb 95 to poor 10): Centering grades relate the design’s placement to an independently selected grading reference. This scorer interpolates a supplied centering curve and does not impose a universal numeric scale or inspect a stamp image. For a complementary step, use Off-Center Shift Millimetre Measurer to Grade Mapper: Off-center design displacement can be related to a grade through a chosen grading reference. This mapper reads a supplied offset-to-grade calibration and retains its local slope rather than asserting a universal service grade.
References
Similar or alternative tools
- Centering Grade Scorer (superb 95 to poor 10)
Centering grades relate the design’s placement to an independently selected grading reference. This scorer interpolates a supplied centering curve and does not impose a universal numeric scale or inspect a stamp image.
- Off-Center Shift Millimetre Measurer to Grade Mapper
Off-center design displacement can be related to a grade through a chosen grading reference. This mapper reads a supplied offset-to-grade calibration and retains its local slope rather than asserting a universal service grade.