AUTOMATIC IMAGE ENHANCEMENT OF HALFTONE AND CONTINUOUS TONE IMAGES

Patent №

US 6,201,613

Granted

2001-03-13

Filed 1998

Owner

XEROX CORPORATION

Lab

—

AI components

ml · vision · evo

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

09120331

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Automatic image enhancement of halftone images is performed by subjecting the halftone image to a low-pass filter so as to smooth out halftone variations between adjacent pixels prior to performing conventional image analysis and image processing.

Machine learning Vision Evolutionary computationG06T 5/20H04N 1/409

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AI classification

Vision1.00

Machine learning0.95

Evolutionary computation0.53

AI hardware0.15

Natural language0.01

Speech0.00

Planning0.00

Knowledge representation0.00

Ownership

XEROX CORPORATION

assignment · 94180289

Assignors

ZHANG, YEQING, SHIAU, JENG-NAN, BANTON, MARTIN EDWARD

On an employer assignment, the assignors are typically the inventors.

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Cites (15)

DETECTION AND RENDERING OF TEXT IN TINTED AREASUS 5,852,678 · 1998 IMAGE-DEPENDENT AUTOMATIC AREA OF INTEREST ENHANCEMENTUS 5,581,370 · 1996 IMAGE-DEPENDENT COLOR SATURATION CORRECTION IN A NATURAL SCENE PICTORIAL IMAGEUS 5,450,217 · 1995 IMAGE-DEPENDENT LUMINANCE ENHANCEMENTUS 5,450,502 · 1995 IMAGE-DEPENDENT EXPOSURE ENHANCEMENTUS 5,414,538 · 1995 IMAGE-DEPENDENT COLOR CORRECTION USING BLACK POINT AND WHITE POINT IN A NATURAL SCENE PICTORIAL IMAGEUS 5,371,615 · 1994 IMAGE-DEPENDENT SHARPNESS ENHANCEMENTUS 5,363,209 · 1994 IMAGE-DEPENDENT COLOR SHIFTING OF STRONGLY COLOR SHIFTED IMAGESUS 5,357,352 · 1994 CASCADED IMAGE PROCESSING USING HISTOGRAM PREDICTIONUS 5,347,374 · 1994 IMAGE PROCESSING SYSTEM AND METHOD EMPLOYING ADAPTIVE FILTERING TO PROVIDE IMPROVED RECONSTRUCTION OF CONTINUOUS TONE IMAGES FROM HALFTONE IMAGES INCLUDING THOSE WITHOUT A SCREEN STRUCTUREUS 5,343,309 · 1994 AUTOMATIC IMAGE SEGMENTATION FOR COLOR DOCUMENTSUS 5,341,226 · 1994 IMAGE PROCESSING METHOD TO REMOVE HALFTONE SCREENSUS 5,239,390 · 1993 METHOD FOR ENHANCED ERROR DIFFUSIONUS 5,045,952 · 1991 METHOD OF AND APPARATUS FOR PERFORMING DETAIL ENHANCEMENTUS 5,001,573 · 1991 Patent US 5,483,603US 5,483,603

Cited by (9)

Method and system for the selective application of automatic image enhancement to digital imagesUS 8,761,532 · 2014 EDGE ENHANCEMENT METHOD FOR HALFTONE IMAGEUS 7,756,353 · 2010 ENHANCED OPTICAL RECOGNITION OF DIGITIZED IMAGES THROUGH SELECTIVE BIT INSERTIONUS 7,400,768 · 2008 INVERSE HALFTONING PROCESSUS 7,228,002 · 2007 DIGITAL DE-SCREENING OF DOCUMENTS

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