{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10504216","patent":{"patent_number":"US-10504216","title":"Luminance changing image processing with color constancy","assignee":null,"inventors":[],"filing_date":"2015-10-22T00:00:00.000Z","publication_date":"2019-12-10T00:00:00.000Z","cpc_codes":["G06T","G06T","H04N","H04N","H04N","G06T","G06T","H04N","H04N"],"num_claims":15,"abstract":"An image color processing apparatus to change a luminance dynamic range includes a maximum calculation unit configured to calculate the maximum of at least three components of the input color; a brightness mapper configured to apply a predetermined function to the maximum, yielding an output value, where the function has a constraint that the output value for the highest value of the maximum cannot be higher than 1.0; a scaling parameter calculator configured to calculate a scaling parameter being equal to the output value divided by the maximum; a multiplier configured to multiply the three color components of the input color by the scaling parameter, yielding the color components of the output color; and at least one component multiplier configured to multiply a component of the input color with a weight being a real number yielding a scaled component prior to input of that component in the maximum calculation unit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Luminance changing image processing with color constancy","description":"An image color processing apparatus to change a luminance dynamic range includes a maximum calculation unit configured to calculate the maximum of at least three components of the input color; a brigh","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10504216","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-10504216","citation_suggestion":"Patentable. \"Luminance changing image processing with color constancy\" (US-10504216). https://patentable.app/patents/US-10504216","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10504216","json":"https://patentable.app/api/llm-context/US-10504216","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T17:19:19.069Z"}