Registration Mark CMYK 100% All Check
Check observed registration-mark process separations for 100% in all four channels under tiny caller measurement tolerance; mark-only screen, not permission to print 400% ink in ordinary art or a press-safety test.
Description
A registration mark can use full coverage in every process separation.
A registration mark can use full coverage in every process separation. The check is specific to marks rather than ordinary artwork.1
Enter exactly four CMYK percentages 0–100 and tolerance 0–1 percentage points. Return missing-full-coverage indexes, all-within flag and total percentage.
When to use Registration Mark CMYK 100% All Check
Use Registration Mark CMYK 100% All Check when you need to evaluate the supplied records under the calculation and evidence rules below. No permission to use 400% ink in ordinary artwork or press-safety approval is supplied.
Prepare colors in the stated color space and scale. Use encoded RGB fractions, linear RGB, Lab, xy, byte values or ink percentages exactly as requested; supply caller tolerances and reference conditions.
How to use Registration Mark CMYK 100% All Check and understand its results
- Prepare colors in the stated color space and scale. Use encoded RGB fractions, linear RGB, Lab, xy, byte values or ink percentages exactly as requested; supply caller tolerances and reference conditions.
- Enter observedRegistrationCmykPercent, callerChannelTolerancePercentagePoints using the field table and calculation rules, then run the tool.
- Read missingFullCoverageChannelIndices, registrationAllFourChannelsWithinPolicy, totalObservedRegistrationInkPercent. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedRegistrationCmykPercent | Observed registration cmyk percent | list of number | Required |
| callerChannelTolerancePercentagePoints | Caller channel tolerance percentage points | number | Required |
Enter exactly four CMYK percentages 0–100 and tolerance 0–1 percentage points. Return missing-full-coverage indexes, all-within flag and total percentage.
missing_i=(100−channelPercent_i)>tolerance Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| missingFullCoverageChannelIndices | Missing full coverage channel indices | list of number |
| registrationAllFourChannelsWithinPolicy | Registration all four channels within policy | boolean |
| totalObservedRegistrationInkPercent | Total observed registration ink percent | number |
{
"input": {
"observedRegistrationCmykPercent": [
100,
100,
100,
100
],
"callerChannelTolerancePercentagePoints": 0
},
"output": {
"missingFullCoverageChannelIndices": [],
"registrationAllFourChannelsWithinPolicy": true,
"totalObservedRegistrationInkPercent": 400
}
}Limitations and assumptions
No permission to use 400% ink in ordinary artwork or press-safety approval is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors. A successfully returned false flag is an evaluated outcome; its meaning is explained above.
Alternative or Complementary methods
Use Total Ink Coverage Area Limit Check: Total ink coverage sums all four process separations. A press/substrate-specific ceiling must come from the caller. For a complementary task, use CMYK to HEX Print Conversion: A naive CMYK-to-RGB formula treats each process ink as a multiplicative channel reduction. Actual press conversion needs a profile.
References
-
Registration Mark CMYK 100% All Check — tool.io
Similar or alternative tools
- Total Ink Coverage Area Limit Check
Total ink coverage sums all four process separations. A press/substrate-specific ceiling must come from the caller.
- CMYK to HEX Print Conversion
A naive CMYK-to-RGB formula treats each process ink as a multiplicative channel reduction. Actual press conversion needs a profile.