context-leftContext / convention
Left hand
Record the actual anatomical left hand, not the left side of the image.
Recognition, limits & sources
How to recognize itAsk the owner to confirm left or right; note whether the camera mirrored the image.
False positives and limitsMirrored selfie, back of hand, rotated palm.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-rightContext / convention
Right hand
Record the actual anatomical right hand independently of screen orientation.
Recognition, limits & sources
How to recognize itUse owner confirmation for comparisons; image position alone cannot settle handedness.
False positives and limitsA thumb on screen left can belong to different hands under mirroring.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-dominantContext / convention
Dominant hand
The hand the owner normally uses for skilled tasks.
Recognition, limits & sources
How to recognize itAsk; allow left, right, both or unspecified. Never guess from line strength.
False positives and limitsInjury, mixed dominance, forced handedness.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-nondominantContext / convention
Non-dominant hand
The less-used hand, when the owner identifies a clear dominant hand.
Recognition, limits & sources
How to recognize itCompare like-for-like photos taken in the same session.
False positives and limitsPose and lighting can make one hand look more lined.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-bothManual review
Both-hand comparison
Corresponding geometry from two individually identified hands.
Recognition, limits & sources
How to recognize itNormalize orientation and scale separately, then compare endpoints and shape. Do not align creases as if they were identical.
False positives and limitsUsing five views of one hand is not a two-hand comparison.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-activeContext / convention
Active/passive convention
A chosen traditional comparison between active and passive hands.
Recognition, limits & sources
How to recognize itBenham uses dominance; Cheiro emphasizes right/left. Name the chosen convention and retain disagreement.
False positives and limitsTreating one convention as universal or assigning hands by sex.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-mirrorContext / convention
Mirrored image
Horizontal reversal changes apparent thumb side without changing anatomy.
Recognition, limits & sources
How to recognize itSave a mirror flag or owner-confirmed hand side.
False positives and limitsAn automatic handedness label can be wrong after image reversal.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-thumb-sideMeasured
Thumb-side orientation
Identify the radial thumb side and the opposite ulnar/little-finger side.
Recognition, limits & sources
How to recognize itUse thumb and little-finger landmarks after rotation; report screen-side orientation only.
False positives and limitsOccluded thumb, side view, hand back.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-up-downMeasured
Finger-to-wrist axis
An upright view puts finger bases above the wrist landmark.
Recognition, limits & sources
How to recognize itRotate around the wrist-to-middle-knuckle vector; use the same transform on every annotation.
False positives and limitsCropping, failed landmarks, strong foreshortening.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-ageContext / convention
Present chronological age
Age is biographical information supplied by the owner.
Recognition, limits & sources
How to recognize itAsk only if needed; no automatic age estimate is generated.
False positives and limitsSkin texture, work, light and image filters are not a dependable age scale.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-changeManual review
Change over time
A crease looks different between dated, comparable photos.
Recognition, limits & sources
How to recognize itMatch hand identity, camera scale, pose and light; retain originals and dates.
False positives and limitsApp updates and exposure changes can create an apparent new line.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-absenceMeasured
Not seen versus absent
A feature is not supported in this photograph.
Recognition, limits & sources
How to recognize itReturn not visible or not assessed. Reserve absent for carefully reviewed adequate views.
False positives and limitsBlur, glare, cropping and a conservative threshold.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-multiple-handsMeasured
More than one hand
Two hands are present in the same frame.
Recognition, limits & sources
How to recognize itRequest one palm per scan; compare separately afterward.
False positives and limitsOverlapping fingers and ambiguous landmark assignment.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-front-backManual review
Palm versus back
Palmar crease analysis requires the palm surface.
Recognition, limits & sources
How to recognize itConfirm visible palmar creases and thumb-side anatomy before interpreting a model result.
False positives and limitsA model can find hand landmarks on the back too.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-pressureManual review
Pose and tension
Changing finger spread or pressing the palm changes visible folds.
Recognition, limits & sources
How to recognize itUse a comfortably open relaxed hand without force.
False positives and limitsTemporary compression folds resemble forks or extra creases.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. context-identityContext / convention
Biometric identity
Palm texture can contain identifying information, but identity is not this product's output.
Recognition, limits & sources
How to recognize itKeep images on-device for analysis; do not use the rule book to identify or authenticate people.
False positives and limitsA matching crease does not establish a person's identity.
Current scanner coverageRequires owner input or is a reading/workflow convention.
ReferencesWilliam G. Benham: What Hand to Use; Texture of the SkinPart I, Chapter IV
William G. Benham: The Age of the SubjectPart II, Chapter IV
Google: Hand Landmarker for WebLandmarks, handedness and IMAGE mode
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-lifeMeasured
Life line / thenar crease
A major curved crease bordering the thumb pad and running toward the wrist.
Recognition, limits & sources
How to recognize itTrace the supported curved path with model votes and measured ridges; do not invent a lower continuation.
False positives and limitsThumb-pad shading and hand outlines.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
Optional traditional themegrounding and life patterns. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
C. de Saint-Germain: Life Line: Starting PointsLine of Life, section III
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-headMeasured
Head line / proximal transverse crease
A major crease running across the central palm below the heart-line area.
Recognition, limits & sources
How to recognize itRequire a connected or explicitly partial principal trace across the palm.
False positives and limitsHeart/head union and oblique small creases.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
Optional traditional themethinking and decisions. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
William G. Benham: The Line of HeadPart II, Chapter VI
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-heartMeasured
Heart line / distal transverse crease
An upper-palm crease beneath the four finger bases.
Recognition, limits & sources
How to recognize itTrace the upper transverse path; record its two visible limits. The scanner orders it from the thumb side.
False positives and limitsFinger-base folds and a merged transverse crease.
Current scanner coverageMeasured by the current major-line, orientation or workflow code. Visibility limits apply.
Optional traditional themeconnection and expression. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
William G. Benham: The Line of HeartPart II, Chapter V
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-fateCandidate
Fate / Saturn line
A rising longitudinal crease directed toward the middle-finger region.
Recognition, limits & sources
How to recognize itFind a measured non-major path with sufficient vertical extent in a middle-finger corridor.
False positives and limitsMajor-line offshoots and several unrelated short pieces.
Current scanner coverageThe scanner can propose image-supported geometry; a person must confirm its identity.
Optional traditional themedirection and work. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
C. de Saint-Germain: Fate Line: Termination and ForksLine of Fate, section IV
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-sunCandidate
Sun / Apollo line
A rising crease directed toward the ring-finger region.
Recognition, limits & sources
How to recognize itHighlight only the measured unclassified path; keep the Apollo name tentative.
False positives and limitsA vertical fragment is not a complete success line.
Current scanner coverageThe scanner can propose image-supported geometry; a person must confirm its identity.
Optional traditional themecreativity and recognition. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
C. de Saint-Germain: Sun Line: SignsLine of the Sun, section VII
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-mercuryCandidate
Mercury / hepatica / health line
An oblique or rising crease toward the little-finger region.
Recognition, limits & sources
How to recognize itUse a little-finger corridor and measured support, without diagnosing organs or health.
False positives and limitsUpper Mars texture, branches and skin shadows.
Current scanner coverageThe scanner can propose image-supported geometry; a person must confirm its identity.
Optional traditional themecommunication and routines. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-marsManual review
Mars / sister life line
A separate curve running inside and broadly parallel to the life line.
Recognition, limits & sources
How to recognize itVerify separation along a substantial arc and two real boundaries in the original photo.
False positives and limitsAn island edge or a doubled image of one crease.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
Optional traditional themesupport and resilience. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds. line-intuitionManual review
Intuition / bow line
A curved outer-palm crease running from the Moon area toward Mercury.
Recognition, limits & sources
How to recognize itRequire the full location and curvature; a small isolated arc is insufficient.
False positives and limitsSide lighting and the hand silhouette.
Current scanner coverageCataloged for review; no automatic detector for the full rule.
Optional traditional themeimagination and intuition. Traditional association; not a validated personality, health or future prediction.
Describe the visible shape first. Use a symbolic association only if it helps your own reflection.
ReferencesCheiro: Palmistry for AllParts I and II; printed pages 8-180
C. de Saint-Germain: The Line of IntuitionSections I-VIII
Palm Reader Studio: Operational geometry specificationlib/palm-features.ts; this catalog and tests
Measurement recipes and reflection prompts are original editorial guidance; source citations do not validate personal predictions or detector thresholds.