Dot Gain Compensation Percentage Adjustment Calculator
Signed input-tone correction by measured dot gain; rejects corrected tone outside 0–100, no press transfer model.
Description
Subtract measured dot gain in percentage points from a target printed tone.
Dot gain changes a printed tone relative to its nominal setting. A measured gain in percentage points can be subtracted from a target tone as a simple single-point compensation estimate.
When to use this tool
Subtract measured dot gain in percentage points from a target printed tone. Use it when the input measurements and conventions below match the operation you need.
- Prepare targetTonePercent, measuredGainPercentagePoints, respecting the measurement basis and boundaries below.
- Compare the worked example with your intended operation before reusing its result.
How to use the tool and how it works
- Enter every field in the input table using the stated units and exact supported selector spelling where applicable.
- Run the tool. Correct input errors before interpreting an output.
- Read the result fields below; use accompanying flags and the stated sign, boundary or model convention when interpreting a number.
targetTonePercent must be from 0 to 100 and measuredGainPercentagePoints from -100 to 100. correctedTonePercent is their difference. The tool rejects a corrected value outside 0 to 100 instead of silently clipping it.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| targetTonePercent | Target tone percent. Percentage units; 20 means 20%. | Finite number; from 0 to 100 inclusive |
| measuredGainPercentagePoints | Measured gain percentage points. | Finite number; from -100 to 100 inclusive |
| Output field | Interpretation |
|---|---|
| result | Object containing the following named result fields. |
| result.correctedTonePercent | Corrected tone percent; use the stated units and sign convention. |
{
"input": {
"targetTonePercent": 50,
"measuredGainPercentagePoints": 10
},
"output": {
"result": {
"correctedTonePercent": 40
}
}
}Limitations and assumptions
- A percentage-point adjustment is not multiplication by a gain percentage. This single-point subtraction does not build a press calibration curve or model substrate, ink and screening interactions.
- Every declared field is required and unexpected fields are rejected. Numeric inputs must be finite; input errors are distinct from a valid false result or an explicitly qualified output.
- Extremely large inputs and nonfinite or excessively large outputs are rejected. List positions reported by the tool use zero-based indices unless stated otherwise.
Alternative or Complementary methods
For a map-layout decision, inspect the rendered map at its intended size as well as its numerical dimensions. For classification or coordinate work, retain the chosen boundary and coordinate conventions with the result. Compare the scope of the nearby tools below before substituting one.
References
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