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EP0248235A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Image processing apparatus having function of enlargement and/or shrinkage of image

Assignee: NEC Corp
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Filing: 1987-05-08
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Granted: —
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Expires: 2007-05-08
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Abstract

Abstract The image processor apparatus comprises for performing a shrinking operation and input means for receiving a plurality of bits which represent an image to be shrinked; a plurality of gate circuits gating such different numbers of bits among said bits receiving by said input means according to a shrinking scale factor that are less than the number of the bits received by said input means; means for selecting one of said gate circuits according to the shrinking scale factor to activate the selected gate circuit and an output means for coupled to said gate circuits for outputting a bit or bits which pass through the selected gate circuit. For the performance of an enlarging operation the apparatus comprises an input means for receiving a plurality of input bits representing an image to be enlarged; a shift means coupled to said input means for shifting said input bits by a bit number determined by an enlargement scale factor; a plurality of gate circuits gating a plurality of bits which are same in number as said input bits and contain two or more bits having the same content as that of at least first bit of said input bits or the shifted input bits; a means for selecting one of said gate circuits according to said enlargement scale factor to activate the selected gate circuit; and an output means coupled to said gate circuits for outputting the bits which pass through the selected gate.

Inventors

  • 👤 Mitsurou C/O Nec Corporation Ohuchi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-27 04:53
CPC Classifications
G; G06; G06T; G06T3/00; G06T3/02

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 105 words
An image processing apparatus performing shrinking operation comprising: an input means for receiving a plurality of bits which represent an image to be shrinked; a plurality of gate circuits gating such different numbers of bits among said bits received by said input means according to a shrinking scale factor that are less than the number of the bits received by said input means; means for selecting one of said gate circuits according to the shrinking scale factor to activate the selected gate circuit and an output means coupled to said gate circuits for outputting a bit or bits which pass through the selected gate circuit.
Claim 2
Dependent Claim 105 words
An image processing apparatus performing shrinking operation comprising: an input means for receiving a plurality of bits which represent an image to be shrinked; a plurality of gate circuits gating such different numbers of bits among said bits received by said input means according to a shrinking scale factor that are less than the number of the bits received by said input means; means for selecting one of said gate circuits according to the shrinking scale factor to activate the selected gate circuit and an output means coupled to said gate circuits for outputting a bit or bits which pass through the selected gate circuit.
Claim 3
Dependent Claim 46 words
An image processing apparatus as claimed in claim 1, further comprising means for packing a plurality of outputs from said output means to form a one word data which consists of a plurality of bits equal in number to the bits received by said input means.
Claim 4
Dependent Claim 32 words
An image processing apparatus as claimed in claim 2, wherein-said packing means includes a rotator to shift a bit or bits outputted from said output means according to the shrinking scale factor.
Claim 5
Dependent Claim 132 words
An image processing apparatus performing enlarging operation comprising; an input means for receiving a plurality of input bits representing an image to be enlarged; a shift means coupled to said input means for shifting said input bits by a bit number determined by an enlargement scale factor; a plurality of gate circuits gating a plurality of bits which are same in number as said input bits and contain two or more bits having the same content as that of at least first bit of said input bits or the shifted input bits; a means for selecting one of said gate circuits according to said enlargement scale factor to activate the selected gate circuit; and an output means coupled to said gate circuits for outputting the bits which pass through the selected gate.
Claim 6
Dependent Claim 132 words
An image processing apparatus performing enlarging operation comprising; an input means for receiving a plurality of input bits representing an image to be enlarged; a shift means coupled to said input means for shifting said input bits by a bit number determined by an enlargement scale factor; a plurality of gate circuits gating a plurality of bits which are same in number as said input bits and contain two or more bits having the same content as that of at least first bit of said input bits or the shifted input bits; a means for selecting one of said gate circuits according to said enlargement scale factor to activate the selected gate circuit; and an output means coupled to said gate circuits for outputting the bits which pass through the selected gate.
Claim 7
Dependent Claim 91 words
An image processing apparatus comprising means for shrinking a source image consisting of a pixcel data by m/n times, where n and m are integers and m < n, said shrinking means having 1st to (n-1)th gate circuits respectively gating 1 to n-1 bits among said n pixcel- data, a means for selecting mth gate circuit among the n-1 gate circuits in response to m to open the selected mth gate circuit, and an output means for outputting a part of the n pixcel data via the selected open gate circuit.
Claim 8
Dependent Claim 91 words
An image processing apparatus comprising means for shrinking a source image consisting of a pixcel data by m/n times, where n and m are integers and m < n, said shrinking means having 1st to (n-1)th gate circuits respectively gating 1 to n-1 bits among said n pixcel- data, a means for selecting mth gate circuit among the n-1 gate circuits in response to m to open the selected mth gate circuit, and an output means for outputting a part of the n pixcel data via the selected open gate circuit.
Claim 9
Dependent Claim 89 words
An image processing apparatus comprising means for enlarging a source image consisting of n pixcel data by n/m times, where m and n are integers and m < n, said enlarging means having a first means for selecting m pixcel data among said n pixcel data and a second means for adding other m pixcel data to the selected m pixcel data said other m pixcel data having the same content as that of the selected m pixcel data, and an output means for outputting the added pixcel data.
Claim 10
Dependent Claim 89 words
An image processing apparatus comprising means for enlarging a source image consisting of n pixcel data by n/m times, where m and n are integers and m < n, said enlarging means having a first means for selecting m pixcel data among said n pixcel data and a second means for adding other m pixcel data to the selected m pixcel data said other m pixcel data having the same content as that of the selected m pixcel data, and an output means for outputting the added pixcel data.

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