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EP0890922A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method and apparatus for generating image file

Assignee: Fujifilm Holdings Corp
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Filing: 1998-07-07
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Granted: —
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Expires: 2018-07-07
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Abstract

Abstract Upon generating a plurality of image data sets at different resolutions from a digital image obtained by a film scanner or the like and recording the data sets in a recording medium as an image file having a hierarchy such as the one defined by the FlashPix standard, image quality degradation caused in generation processing of the image data sets at different resolutions can be minimized. Image data 9 for printing are generated in order to generate photographic print 5 by carrying out interpolation processing by interpolation processing means (printing image data generating means) 13a on an original image 8 obtained by an image obtaining apparatus 10 or 11. Image data sets 7 at different resolutions are also generated by directly carrying out interpolation processing by interpolation processing means (stepping resolution image data set generating means) 13b on the original image 8.

Inventors

  • 👤 Ito Watar

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 22:06
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/40; G06T3/4007

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 106 words
An image file generating method which generates image data for printing at a resolution appropriate for printing and image data sets at different resolutions changing stepwise and lower than the resolution of the image data for printing by using a digital image obtained by an image obtaining apparatus, and generates a structured storage file comprising the image data for printing and at least one of the image data sets at different resolutions as components of the file, wherein the image data for printing and at least one of the image data sets at different resolutions are generated by applying direct interpolation processing on the digital image.
Claim 2
Dependent Claim 73 words
The image file generating method as claimed in Claim 1, wherein among the image data sets at different resolutions, image data sets at resolutions between 1/2 and 2 times the resolution of the digital image are generated by directly interpolating the digital image, and the image data sets at resolutions other than the above are generated by applying stepping interpolation processing on the image data sets at the resolutions within the above range.
Claim 3
Dependent Claim 157 words
An image file generating apparatus which generates image data for printing at a resolution appropriate for printing and image data sets at resolutions changing stepwise and lower than the resolution of the image data for printing by using a digital image obtained by an image obtaining apparatus and generates a structured storage file comprising the image data for printing and at least one of the image data sets at different resolutions as components of the file, the image file generating apparatus comprising: printing image data generating means which generates the image data for printing by directly applying interpolation processing on the digital image, stepping resolution image data set generating means which generates at least one of the image data sets at different resolutions by applying direct interpolation processing on the digital image, and file generating means which generates the structured storage file by using the image data for printing and the image data sets at different resolutions.
Claim 4
Dependent Claim 73 words
The image file generating apparatus as claimed in Claim 3, wherein among the image data sets at different resolutions, image data sets at resolutions between 1/2 and 2 times the resolution of the digital image are generated by directly interpolating the digital image, and the image data sets at resolutions other than the above are generated by applying stepping interpolation processing on the image data sets at the resolutions within the above range.

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