JPH10155085A - Color/texture information converter - Google Patents

Color/texture information converter

Info

Publication number
JPH10155085A
JPH10155085A JP8310268A JP31026896A JPH10155085A JP H10155085 A JPH10155085 A JP H10155085A JP 8310268 A JP8310268 A JP 8310268A JP 31026896 A JP31026896 A JP 31026896A JP H10155085 A JPH10155085 A JP H10155085A
Authority
JP
Japan
Prior art keywords
information
color
image information
texture
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8310268A
Other languages
Japanese (ja)
Other versions
JP3593431B2 (en
Inventor
Teruo Hamano
輝夫 浜野
Tsutomu Sasaki
努 佐々木
Takeshi Kajii
健 梶井
Noboru Sonehara
曽根原  登
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP31026896A priority Critical patent/JP3593431B2/en
Publication of JPH10155085A publication Critical patent/JPH10155085A/en
Application granted granted Critical
Publication of JP3593431B2 publication Critical patent/JP3593431B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Facsimile Image Signal Circuits (AREA)
  • Image Analysis (AREA)
  • Processing Or Creating Images (AREA)
  • Image Processing (AREA)

Abstract

PROBLEM TO BE SOLVED: To retrieve and output image information including color information even from a facsimile equipment by means of a distribution database system by solving a problem it that a plurality of color areas cannot be identified in the case of converting color image information into monochromatic image information. SOLUTION: A color coordinate conversion section 2 converts color information of each picture element being component of image information entered by an input section 1 into a color coordinate system having hue, luminance and saturation as axes, a color area division section 3 collects picture elements having same or similar color information to be a same area through color area separation processing. Then a texture conversion section 4 converts each color area information into a texture having an attribute corresponding to color information of each area so as to convert color image information including a plurality of color information sets into binary monochromatic image information reserving distance relation of each color information in a color space.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明はカラー/テクスチャ
情報変換装置に関し,複数の色情報を含むカラー画像情
報を,二値のモノクロ画像情報の出力しか行えないファ
クシミリ装置またはハードコピー装置等に出力する技術
分野に属する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color / texture information conversion device, and outputs color image information including a plurality of color information to a facsimile device or a hard copy device which can only output binary monochrome image information. Belongs to the technical field.

【0002】[0002]

【従来の技術】インターネット上に構築されたWWW
(World Wide Web)等の電気通信設備で構成されるネッ
トワークを介して接続された情報蓄積装置および情報検
索装置によって構成される分散型のデータベースシステ
ムにおいて,二値のモノクロ画像情報の入出力しか行え
ないファクシミリ装置から,情報検索および情報出力を
行う場合,情報蓄積装置に蓄積された画像情報をモノク
ロ画像情報に変換し,さらにこのモノクロ画像情報をフ
ァクシミリ符号化して,ファクシミリ装置に出力する必
要がある。
2. Description of the Related Art WWW constructed on the Internet
In a distributed database system consisting of information storage and information retrieval devices connected via a network consisting of telecommunications equipment such as the World Wide Web, only binary monochrome image information can be input and output. When performing information retrieval and information output from a facsimile machine that is not available, it is necessary to convert the image information stored in the information storage device into monochrome image information, further facsimile encode the monochrome image information, and output the monochrome image information to the facsimile device. .

【0003】このとき,該画像情報が色情報を含む場
合,従来は,色情報の輝度情報のみを抽出して二値のモ
ノクロ画像情報に変換していた。したがって,該画像情
報中の色情報の色空間における距離関係を,二値のモノ
クロ画像情報では保存することができなかった。このた
め,オリジナルの画像情報上では識別できた複数の色情
報が,変換された二値のモノクロ画像情報上では,識別
困難になる,または識別不可能となるという問題点を有
していた。
At this time, if the image information includes color information, conventionally, only luminance information of the color information is extracted and converted into binary monochrome image information. Therefore, the distance relationship in the color space of the color information in the image information cannot be stored in the binary monochrome image information. For this reason, there has been a problem that a plurality of pieces of color information that can be identified on the original image information become difficult to identify or cannot be identified on the converted binary monochrome image information.

【0004】[0004]

【発明が解決しようとする課題】本発明の目的は,画像
情報の色情報を色空間における距離関係を可能な限り保
存するように二値モノクロ画像情報に変換することで,
ファクシミリ装置等からでも色情報を含む画像情報を分
散型データベースシステムから検索および出力可能とす
る情報変換装置を実現することである。
SUMMARY OF THE INVENTION An object of the present invention is to convert color information of image information into binary monochrome image information so as to preserve a distance relationship in a color space as much as possible.
It is an object of the present invention to realize an information conversion apparatus that can search and output image information including color information from a distributed database system even from a facsimile apparatus or the like.

【0005】[0005]

【課題を解決するための手段】図1は本発明の構成例,
図2は本発明を説明するための白黒二値テクスチャの
例,図3は輝度とテクスチャの線密度との対応関係,図
4は色相とテクスチャの方向との対応関係,図5は彩度
とテクスチャの粒度との対応関係を示す図である。
FIG. 1 shows an example of the configuration of the present invention.
2 is an example of a black and white binary texture for explaining the present invention, FIG. 3 is a correspondence relationship between luminance and a line density of the texture, FIG. 4 is a correspondence relationship between hue and the direction of the texture, and FIG. It is a figure which shows the correspondence with the granularity of texture.

【0006】本発明のカラー/テクスチャ情報変換装置
は,例えば図1に示すように,画像情報を入力する入力
部1と,入力部1が入力した画像情報を構成する各画素
の色情報を色相,輝度,彩度を軸に持つ色座標系に変換
する色座標変換部2と,色座標変換部2で色座標変換さ
れた画像情報を色領域に分割して色領域情報を生成する
色領域分割部3と,色領域分割部3が生成した各色領域
情報を,色領域情報の色情報に対応する属性を持つテク
スチャに変換するテクスチャ変換部4と,テクスチャ変
換部4が変換した画像情報を出力する出力部5とを有
し,入力部1から入力した複数色情報を含むカラー画像
情報を,各色情報の色空間における距離関係を保存した
二値のモノクロ画像情報に変換して出力する。
As shown in FIG. 1, for example, a color / texture information conversion apparatus according to the present invention uses an input unit 1 for inputting image information and a hue for each pixel constituting the image information input by the input unit 1. , A color coordinate conversion unit for converting into a color coordinate system having axes of luminance and saturation, and a color area for generating color area information by dividing the image information converted by the color coordinate conversion by the color coordinate conversion unit 2 into color areas A dividing unit 3, a texture converting unit 4 for converting each color area information generated by the color area dividing unit 3 into a texture having an attribute corresponding to the color information of the color area information, and an image information converted by the texture converting unit 4 An output unit 5 for outputting color image information including a plurality of color information input from the input unit 1 is converted into binary monochrome image information in which a distance relationship of each color information in a color space is stored and output.

【0007】色領域分割部3は,例えば入力画像情報を
蓄積する入力画像情報蓄積部3−1と,蓄積した入力画
像情報を色領域に分割する色領域分割処理部3−2と,
生成した色領域情報を蓄積する色領域情報蓄積部3−3
とを持つ。
The color area dividing section 3 includes, for example, an input image information accumulating section 3-1 for accumulating input image information, a color area dividing processing section 3-2 for dividing the accumulated input image information into color areas,
Color area information storage section 3-3 for storing the generated color area information
With

【0008】テクスチャ変換部4は,例えば色領域情報
蓄積部3−3が保持する各色領域情報の色情報の輝度情
報を読み出し,線密度情報に変換する輝度/密度変換部
4−1と,各色領域情報の色情報の色相情報を読み出
し,方向情報に変換する色相/方向変換部4−2と,各
色領域情報の色情報の彩度情報を読み出し,粒度情報に
変換する彩度/粒度変換部4−3と,各色領域情報の位
置情報と形状情報が示す画像情報の領域を,前記線密度
情報,方向情報および粒度情報から生成されるテクスチ
ャで塗りつぶした画像情報を生成するテクスチャ生成部
4−4と,テクスチャ生成部4−4が生成した画像情報
をいったん蓄積する出力画像情報蓄積部4−5とを持
つ。
The texture conversion unit 4 reads, for example, the luminance information of the color information of each color area information stored in the color area information storage unit 3-3, and converts it into linear density information. A hue / direction conversion unit 4-2 for reading hue information of color information of area information and converting the hue information into direction information, and a saturation / granularity conversion unit for reading saturation information of color information of each color area information and converting the information into granularity information 4-3, a texture generation unit 4 that generates image information in which an area of image information indicated by the position information and shape information of each color area information is filled with a texture generated from the line density information, the direction information, and the granularity information. 4 and an output image information storage unit 4-5 for temporarily storing the image information generated by the texture generation unit 4-4.

【0009】本発明の作用は,以下のとおりである。入
力部1から入力し,色座標変換部2によって変換するオ
リジナルの画像情報IがM×N個の画素から構成され,
各画素p(x,y)の色情報T(p(x,y))(x=
0,…,M−1;y=0,…,N−1)が,画像情報I
全体でQ種類あるものとする。すなわち,T(p(x,
y))=Ci (i=0,…,Q−1)である。ここで,
i は,色座標変換部2により,例えばHVS座標など
の色相,輝度,彩度を用いた表色系によって表現されて
いるものとする。
The operation of the present invention is as follows. The original image information I input from the input unit 1 and converted by the color coordinate conversion unit 2 is composed of M × N pixels.
Color information T (p (x, y)) of each pixel p (x, y) (x =
0,..., M−1; y = 0,.
It is assumed that there are Q types in total. That is, T (p (x,
y)) = C i (i = 0,..., Q−1). here,
It is assumed that C i is represented by the color coordinate conversion unit 2 in a color system using hue, luminance, and saturation such as HVS coordinates.

【0010】まず,色領域分割部3により,画像情報I
に対して,隣接しかつ同一または類似の色情報を持つ画
素同士をまとめて同一の領域とする色領域分割処理を施
すことで,画像情報IをR個の色領域aj (j=0,
…,R−1)に分割する。次に,テクスチャ変換部4に
より,各色領域aj の各色T(aj )を,白黒の二値で
構成されるテクスチャ(模様)に変換する。テクスチャ
は,例えば図2に示すような斜線や線分,点などで構成
されるものとする。
First, the image information I
Is subjected to a color area division process in which adjacent pixels having the same or similar color information are collectively set to the same area, so that the image information I is divided into R color areas a j (j = 0,
.., R-1). Next, the texture conversion unit 4 converts each color T (a j ) of each color area a j into a texture (pattern) composed of black and white binary values. The texture is composed of, for example, oblique lines, line segments, points, and the like as shown in FIG.

【0011】本発明では,このような色T(aj )=C
i からテクスチャへの変換を,Ciを構成する三成分,
輝度Vi ,色相Hi および彩度Si に着目して,これら
をテクスチャの属性に対応付けることで実現することを
特徴としている。例えば,まず色の輝度成分Vi を,テ
クスチャの単位面積あたりの黒画素の線密度(または点
密度)に対応させる。すなわち,図3に示すように,輝
度成分が小さい場合には,線密度(点密度)を大きく
し,輝度成分が大きい場合には,線密度(点密度)を小
さくする。これは,黒画素の線密度(点密度)が,その
まま輝度に反比例するからである。
In the present invention, such a color T (a j ) = C
The conversion from i to the texture is performed by the three components constituting C i ,
Luminance V i, by focusing on the hue H i and the saturation S i, is characterized in that realized by associating them to an attribute of the texture. For example, the first color luminance component V i, correspond to the linear density of black pixels per unit area of the texture (or point density). That is, as shown in FIG. 3, when the luminance component is small, the line density (point density) is increased, and when the luminance component is large, the line density (point density) is decreased. This is because the linear density (point density) of black pixels is directly inversely proportional to luminance.

【0012】輝度成分以外の二つの色成分,Hi (色
相)とSi (彩度)に対しては,線密度や点密度以外の
テクスチャ特徴,例えばテクスチャの方向と粒度などを
対応させる。すなわち,図4に示すように,色相に方向
を対応させると,色相に応じて,斜線の方向Oが0〜1
80度の範囲で変化するものとする。これは,HVS座
標系が円柱座標系であり,色相Hが0〜360度の範囲
で変化することから,例えば, O=H/2 とすることで,色相を方向に対応付けることが可能なた
めである。
For two color components other than the luminance component, H i (hue) and S i (saturation), texture features other than the line density and point density, for example, the direction and the granularity of the texture are made to correspond. That is, as shown in FIG. 4, when the direction is made to correspond to the hue, the oblique line direction O is 0 to 1 depending on the hue.
It changes in the range of 80 degrees. This is because the HVS coordinate system is a cylindrical coordinate system, and the hue H changes in the range of 0 to 360 degrees. For example, by setting O = H / 2, the hue can be associated with the direction. It is.

【0013】また,テクスチャの粒度とは,テクスチャ
の粗さを示す属性である。例えば図5(a)に示すよう
に,破線の黒線分長をLb ,白線分長をLw とする。図
5(b)に示すように,斜線の粒度を下げると,斜線を
構成する線分が破線となる。粒度をさらに下げると,破
線の黒線分長Lb と白線分長Lw は徐々に短くなり,最
終的には点線になる。彩度にテクスチャの粒度を対応さ
せるには,彩度が低くなるにつれてテクスチャの粒度を
低くし,彩度が0のときに,斜線が点線となるようにす
る。
The grain size of the texture is an attribute indicating the roughness of the texture. For example, as shown in FIG. 5 (a), a black line segment length of the broken line L b, the white line component length is L w. As shown in FIG. 5B, when the granularity of the oblique line is reduced, the line segment forming the oblique line becomes a broken line. Further reducing the particle size, the black line segment length L b and the white line component length L w of the broken line is gradually reduced and finally becomes a dotted line. In order to make the granularity of the texture correspond to the saturation, the granularity of the texture is reduced as the saturation decreases, and the diagonal line becomes a dotted line when the saturation is zero.

【0014】このように,画像情報I中の色領域aj
色T(aj )=Ci に着目し,Ciを構成する三成分,
輝度Vi ,色相Hi ,彩度Si をテクスチャ特徴を表す
属性に対応づけて,テクスチャに変換することで,異な
る色を持つ色領域を,必ず識別可能な別個のテクスチャ
に変換することが可能となる。
As described above, focusing on the color T (a j ) = C i of the color area a j in the image information I, the three components constituting C i ,
By converting the luminance V i , the hue H i , and the saturation S i into a texture in association with an attribute representing a texture feature, a color region having a different color can be surely converted into a distinct texture that can be identified. It becomes possible.

【0015】[0015]

【発明の実施の形態】以下,図1に示す装置の動作につ
いて説明する。まず,入力部1より画像情報を入力す
る。入力部1から入力された画像情報は,色座標変換部
2に出力される。色座標変換部2は,画像情報を構成す
るRGB値などから構成される各画素の色情報を,HV
S(色相情報,輝度情報,彩度情報)などの色座標系に
変換し,変換後の色情報を持つ画素から構成される画像
情報を入力画像情報蓄積部3−1に蓄積する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The operation of the apparatus shown in FIG. 1 will be described below. First, image information is input from the input unit 1. The image information input from the input unit 1 is output to the color coordinate conversion unit 2. The color coordinate conversion unit 2 converts the color information of each pixel composed of RGB values and the like constituting the image information into HV
The input image information is converted into a color coordinate system such as S (hue information, luminance information, and saturation information), and image information composed of pixels having the converted color information is stored in the input image information storage unit 3-1.

【0016】色領域分割処理部3−2は,入力画像情報
蓄積部3−1に蓄積された画像情報を読み出して,同一
または類似の色情報からなるR個の色領域に分割し,各
色領域の画像情報中での位置情報,形状情報,および色
情報から構成される色領域情報を,色領域情報蓄積部3
−3に蓄積する。色領域の個数Rは一定ではなく,個々
の画像情報によって異なる。
The color area division processing section 3-2 reads the image information stored in the input image information storage section 3-1 and divides the image information into R color areas composed of the same or similar color information. The color area information including the position information, shape information, and color information in the image information of
-3. The number R of the color regions is not constant, and differs depending on individual image information.

【0017】テクスチャ変換部4の輝度/密度変換部4
−1は,色領域情報蓄積部3−3に蓄積されている第一
の色領域情報の色情報の輝度情報を読み出すと,図3に
示すような所定の対応関係に従って,対応するテクスチ
ャの線密度情報に変換して,その線密度情報をテクスチ
ャ生成部4−4に出力する。
The luminance / density converter 4 of the texture converter 4
When the luminance information of the color information of the first color area information stored in the color area information storage unit 3-3 is read out, the corresponding texture line is read according to a predetermined correspondence relationship as shown in FIG. The information is converted into density information, and the line density information is output to the texture generation unit 4-4.

【0018】色相/方向変換部4−2は,色領域情報蓄
積部3−3に蓄積されている第一の色領域情報の色情報
の色相情報を読み出すと,図4に示すような所定の対応
関係に従って,対応するテクスチャの方向情報に変換し
て,その方向情報をテクスチャ生成部4−4に出力す
る。
When reading the hue information of the color information of the first color area information stored in the color area information storage section 3-3, the hue / direction conversion section 4-2 reads the predetermined hue information as shown in FIG. According to the correspondence relationship, the texture information is converted into direction information of the corresponding texture, and the direction information is output to the texture generation unit 4-4.

【0019】彩度/粒度変換部4−3は,色領域情報蓄
積部3−3に蓄積されている第一の色領域情報の色情報
の彩度情報を読み出すと,図5に示すような所定の対応
関係に従って,対応するテクスチャの粒度情報に変換し
て,その粒度情報をテクスチャ生成部4−4に出力す
る。
When reading the saturation information of the color information of the first color area information stored in the color area information storage section 3-3, the saturation / granularity conversion section 4-3 reads the color information as shown in FIG. According to a predetermined correspondence relationship, the texture is converted into the grain size information of the corresponding texture, and the grain size information is output to the texture generation unit 4-4.

【0020】テクスチャ生成部4−4は,第一の色領域
情報の色情報に対応する線密度情報,方向情報および粒
度情報が入力されると,前記色領域情報蓄積部3−3か
ら,第一の色領域情報の位置情報と形状情報を読み出
し,その位置情報と形状情報が示す出力画像情報蓄積部
4−5の領域を,線密度情報,方向情報および粒度情報
から生成したテクスチャで塗りつぶす。
When the line density information, the direction information, and the granularity information corresponding to the color information of the first color area information are input, the texture generation section 4-4 outputs the second color area information from the color area information storage section 3-3. The position information and the shape information of one color area information are read, and the area of the output image information storage unit 4-5 indicated by the position information and the shape information is filled with the texture generated from the line density information, the direction information, and the granularity information.

【0021】テクスチャ変換部4の輝度/密度変換部4
−1,色相/方向変換部4−2,彩度/粒度変換部4−
3およびテクスチャ生成部4−4は,上記の処理を前記
色領域情報蓄積部3−3に蓄積されている残りすべて
(R−1個)の色領域情報について反復する。このよう
にして,すべての色領域情報をテクスチャに変換したな
らば,出力画像情報蓄積部4−5に蓄積された画像情報
を出力部5から出力する。
The luminance / density converter 4 of the texture converter 4
-1, Hue / direction converter 4-2, Saturation / granularity converter 4-
3 and the texture generation section 4-4 repeat the above processing for all the remaining (R-1) color area information stored in the color area information storage section 3-3. When all the color area information has been converted into the texture in this way, the image information stored in the output image information storage section 4-5 is output from the output section 5.

【0022】このような構成になっているから,入力部
1から入力された画像情報中の異なる色を持つ色領域
が,必ず識別可能な別個のテクスチャに変換された画像
情報を得ることが可能となる。
With such a configuration, it is possible to obtain image information in which a color region having a different color in the image information input from the input unit 1 is converted into a distinct texture that can be identified without fail. Becomes

【0023】[0023]

【発明の効果】カラー画像情報を二値のモノクロ画像情
報に変換する際に,オリジナルのカラー画像情報上では
識別できた複数の色領域が,変換された二値のモノクロ
画像情報上では,識別しにくくなる,または識別不可能
となるという従来技術の問題点を,本発明によって解決
することが可能となる。特に,色情報の輝度,色相,彩
度についても,見た目に自然な態様で二値のモノクロ画
像情報上に表すことが可能になる。
According to the present invention, when converting color image information into binary monochrome image information, a plurality of color regions that can be identified on the original color image information are identified on the converted binary monochrome image information. The present invention can solve the problem of the prior art that it becomes difficult to distinguish or indistinguishable. In particular, the luminance, hue, and saturation of the color information can also be represented on the binary monochrome image information in a visually natural manner.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の構成例を示す図である。FIG. 1 is a diagram showing a configuration example of the present invention.

【図2】白黒二値テクスチャの例を示す図である。FIG. 2 is a diagram illustrating an example of a black and white binary texture.

【図3】輝度とテクスチャの線密度との対応関係説明図
である。
FIG. 3 is an explanatory diagram of a correspondence relationship between luminance and a line density of a texture.

【図4】色相とテクスチャの方向との対応関係説明図で
ある。
FIG. 4 is an explanatory diagram of a correspondence relationship between a hue and a direction of a texture.

【図5】彩度とテクスチャの粒度との対応関係説明図で
ある。
FIG. 5 is an explanatory diagram of a correspondence relationship between a saturation and a granularity of a texture.

【符号の説明】[Explanation of symbols]

1 入力部 2 色座標変換部 3 色領域分割部 3−1 入力画像情報蓄積部 3−2 色領域分割処理部 3−3 色領域情報蓄積部 4 テクスチャ変換部 4−1 輝度/密度変換部 4−2 色相/方向変換部 4−3 彩度/粒度変換部 4−4 テクスチャ生成部 4−5 出力画像情報蓄積部 5 出力部 DESCRIPTION OF SYMBOLS 1 Input part 2 Color coordinate conversion part 3 Color area division part 3-1 Input image information storage part 3-2 Color area division processing part 3-3 Color area information storage part 4 Texture conversion part 4-1 Luminance / density conversion part 4 -2 Hue / direction conversion unit 4-3 Saturation / granularity conversion unit 4-4 Texture generation unit 4-5 Output image information storage unit 5 Output unit

───────────────────────────────────────────────────── フロントページの続き (72)発明者 曽根原 登 東京都新宿区西新宿三丁目19番2号 日本 電信電話株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noboru Sonehara 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 画像情報を入力する入力部と,該画像情
報を構成する各画素の色情報を色相,輝度,彩度を軸に
持つ色座標系に変換する色座標変換部と,該色座標変換
部で色座標変換された画像情報を色領域に分割して色領
域情報を生成する色領域分割部と,該色領域分割部が生
成した各色領域情報を,該色領域情報の色情報に対応す
る属性を持つテクスチャに変換するテクスチャ変換部
と,該テクスチャ変換部が変換した画像情報を出力する
出力部とから構成され,複数色情報を含むカラー画像情
報を,該各色情報の色空間における距離関係を保存した
二値のモノクロ画像情報に変換することを特徴とするカ
ラー/テクスチャ情報変換装置。
An input unit for inputting image information; a color coordinate conversion unit for converting color information of each pixel constituting the image information into a color coordinate system having hue, luminance, and saturation as axes; A color region dividing unit that divides the image information subjected to the color coordinate conversion by the coordinate converting unit into color regions to generate color region information; and converts each color region information generated by the color region dividing unit into color information of the color region information. A texture conversion unit for converting the image into a texture having an attribute corresponding to the color information, and an output unit for outputting the image information converted by the texture conversion unit. A color / texture information conversion apparatus for converting the distance relationship into binary monochrome image information.
【請求項2】 画像情報を入力する入力部と,該画像情
報を構成する各画素の色情報を色相,輝度,彩度を軸に
持つ色座標系に変換する色座標変換部と,該色座標変換
部で色座標変換された画像情報を色領域に分割して色領
域情報を生成する色領域分割部と,該色領域分割部が生
成した各色領域情報の色情報の輝度情報を読み出し,線
密度情報に変換する輝度/密度変換部と,該各色領域情
報の色情報の色相情報を読み出し,方向情報に変換する
色相/方向変換部と,該各色領域情報の色情報の彩度情
報を読み出し,粒度情報に変換する彩度/粒度変換部
と,該各色領域情報の位置情報と形状情報が示す画像情
報の領域を,前記線密度情報,方向情報および粒度情報
から生成されるテクスチャで塗りつぶした画像情報を生
成するテクスチャ生成部と,該テクスチャ生成部が生成
した画像情報をいったん蓄積する出力画像情報蓄積部
と,該出力画像情報蓄積部に蓄積された画像情報を出力
する出力部とから構成され,複数色情報を含むカラー画
像情報を,該各色情報の色空間における距離関係を保存
した二値のモノクロ画像情報に変換することを特徴とす
るカラー/テクスチャ情報変換装置。
2. An input unit for inputting image information, a color coordinate conversion unit for converting color information of each pixel constituting the image information into a color coordinate system having hue, luminance, and saturation as axes. A color region dividing unit that divides the image information subjected to the color coordinate conversion by the coordinate converting unit into color regions to generate color region information; and reads out luminance information of the color information of each color region information generated by the color region dividing unit. A luminance / density conversion unit for converting to line density information, a hue / direction conversion unit for reading out hue information of the color information of each color region information, and converting it to direction information, and a saturation information of the color information for each color region information A saturation / granularity conversion unit for reading and converting to granularity information, and filling an area of image information indicated by the position information and shape information of each color area information with a texture generated from the line density information, direction information and granularity information Generation to generate image information And an output image information storage unit for temporarily storing the image information generated by the texture generation unit, and an output unit for outputting the image information stored in the output image information storage unit. A color / texture information conversion apparatus for converting color image information into binary monochrome image information in which a distance relationship of each color information in a color space is stored.
JP31026896A 1996-11-21 1996-11-21 Color / texture information converter Expired - Fee Related JP3593431B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31026896A JP3593431B2 (en) 1996-11-21 1996-11-21 Color / texture information converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31026896A JP3593431B2 (en) 1996-11-21 1996-11-21 Color / texture information converter

Publications (2)

Publication Number Publication Date
JPH10155085A true JPH10155085A (en) 1998-06-09
JP3593431B2 JP3593431B2 (en) 2004-11-24

Family

ID=18003199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31026896A Expired - Fee Related JP3593431B2 (en) 1996-11-21 1996-11-21 Color / texture information converter

Country Status (1)

Country Link
JP (1) JP3593431B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002142121A (en) * 2000-09-12 2002-05-17 Xerox Corp Pattern representation system and method therefor
KR100378351B1 (en) * 2000-11-13 2003-03-29 삼성전자주식회사 Method and apparatus for measuring color-texture distance, and method and apparatus for sectioning image into a plurality of regions using the measured color-texture distance
KR20030086505A (en) * 2003-10-08 2003-11-10 주식회사 블루하모니 Color Rendering Tool using Color Database Information
JP2013126076A (en) * 2011-12-14 2013-06-24 Ricoh Co Ltd Image forming device, image forming method, program, and recording medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002142121A (en) * 2000-09-12 2002-05-17 Xerox Corp Pattern representation system and method therefor
KR100378351B1 (en) * 2000-11-13 2003-03-29 삼성전자주식회사 Method and apparatus for measuring color-texture distance, and method and apparatus for sectioning image into a plurality of regions using the measured color-texture distance
KR20030086505A (en) * 2003-10-08 2003-11-10 주식회사 블루하모니 Color Rendering Tool using Color Database Information
JP2013126076A (en) * 2011-12-14 2013-06-24 Ricoh Co Ltd Image forming device, image forming method, program, and recording medium

Also Published As

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