EP1014687A2
Expired / Lapsed
EP
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Correcting exposure and tone scale of digital images captured by an image capture device
Assignee: Eastman Kodak Co
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Filing: 1999-12-06
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Granted: —
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Expires: 2019-12-06
Abstract
Abstract A method for correcting for exposure in a digital image which was captured by an image capture device and which is to be printed on a printer which forms monochrome or color images, on a medium, includes providing a plurality of exposure and tone scale correcting nonlinear transforms, each such nonlinear transform being unique to an exposure condition and which corrects exposure and tone scale for a digital image captured by the capture device for such unique exposure conditions and to be printed by the printer; and selecting the appropriate nonlinear transform from the plurality of nonlinear transforms and using such selected transform to transform the digital image and produce a new digital image which is corrected for exposure and tone scale when printed from the printer.
Inventors
- 👤 Paul B. Patent Legal Staff Gilman
- 👤 Barbara L. Patent Legal Staff Grady
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 16:58
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/40; H04N1/407; H04N1/46; H04N1/56; H04N1/60; H04N1/603; H04N1/6033
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
128 words
A method for correcting for exposure in a digital image
which was captured by an image capture device and which is to be printed on a
printer which forms monochrome or color images, on a medium, comprising the
steps of a) providing a plurality of exposure and tone scale correcting
transforms, each such transform being unique to an exposure condition and which
corrects exposure and tone scale for a digital image captured by the capture device
for such unique exposure conditions and to be printed by the printer; and b) selecting the appropriate transform from the plurality of
transforms and using such selected transform to transform the digital image and
produce a new digital image which is corrected for exposure and tone scale when
printed from the printer.
Claim 2
Independent Claim
132 words
A method for correcting for exposure in a digital image
which was captured by an image capture device and which is to be printed on a
printer which forms monochrome or color images, on a medium, comprising the
steps of: a) providing a plurality of exposure and tone scale correcting
nonlinear transforms, each such nonlinear transform being unique to an exposure
condition and which corrects exposure and tone scale for a digital image captured
by the capture device for such unique exposure conditions and to be printed by the
printer; and b) selecting the appropriate nonlinear transform from the
plurality of nonlinear transforms and using such selected transform to transform
the digital image and produce a new digital image which is corrected for exposure
and tone scale when printed from the printer.
Claim 3
Independent Claim
142 words
A method for correcting for exposure in a digital image
which was captured by an image capture device and which is to be printed on a
printer which forms monochrome or color images, on a medium, comprising the
steps of: a) providing a plurality of exposure and tone scale correcting
nonlinear transforms, each such nonlinear transform being unique to an exposure
condition and which corrects exposure and tone scale for a digital image captured
by the capture device for such unique exposure conditions and to be printed by the
printer; b) selecting a nonlinear transform from the plurality of
nonlinear transforms and using such selected transform to transform the digital
image and produce a new digital image which is corrected for exposure and tone
scale when printed from the printer; and c) repeating step b) until a user acceptable print is produced.
Claim 4
Independent Claim
170 words
A method for correcting for exposure in a digital image
which was captured by an image capture device and which is to be printed on a
printer which forms monochrome or color images, on a medium, comprising the
steps of: a) providing a plurality of exposure and tone scale correcting
nonlinear transforms, each such nonlinear transform being unique to an exposure
condition and which corrects exposure and tone scale for a digital image captured
by the capture device for such unique exposure conditions and to be printed by the
printer; b) selecting a nonlinear transform from the plurality of
nonlinear transforms and using such selected transform to transform the digital
image; c) correcting the transformed digital image to produce a new
digital image which is corrected for exposure, tone scale, neutral balance and color
reproduction when printed from the printer; d) using the printer to print the color corrected transform
digital image by the printer; and e) repeating steps b), c), and d) until a user acceptable print is
produced.
Claim 5
Dependent Claim
22 words
The method of claim 4 wherein the image capture device is
a digital camera and the medium is a thermal print medium.
Claim 6
Dependent Claim
13 words
The method of claim 4 wherein the printer is an ink jet
printer.
Claim 7
Dependent Claim
12 words
The method of claim 4 wherein the printer is an
electrophotographic printer.
Claim 8
Dependent Claim
110 words
A computer program product comprising a computer
readable storage medium, including a transform made by the steps of a) providing a plurality of exposure and tone scale correcting
nonlinear transforms, each such nonlinear transform being unique to an exposure
condition and which corrects exposure and tone scale for a digital image captured
by the capture device for such unique exposure conditions and to be printed by the
printer; and b) selecting the appropriate nonlinear transform from the
plurality of nonlinear transforms and using such selected transform to transform
the digital image and produce a new digital image which is corrected for exposure
and tone scale when printed from the printer.
References Cited (Backward Citations)
No citation records indexed.
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