JPS6217877A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6217877A
JPS6217877A JP15644985A JP15644985A JPS6217877A JP S6217877 A JPS6217877 A JP S6217877A JP 15644985 A JP15644985 A JP 15644985A JP 15644985 A JP15644985 A JP 15644985A JP S6217877 A JPS6217877 A JP S6217877A
Authority
JP
Japan
Prior art keywords
image
luminance data
data
output
pixel
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.)
Pending
Application number
JP15644985A
Other languages
Japanese (ja)
Inventor
Makoto Hirai
誠 平井
Akio Nishimura
明夫 西村
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP15644985A priority Critical patent/JPS6217877A/en
Publication of JPS6217877A publication Critical patent/JPS6217877A/en
Pending legal-status Critical Current

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  • Image Generation (AREA)

Abstract

PURPOSE:To reduce the operating variable of picture element forming parts, to speed up picture element formation and to reduce the size of a device by outputting a writing address from a data collecting part to an image storing part. CONSTITUTION:The image buffers 21-23 consisting of N units execute the buffering of inputted luminance data and output luminance data 44 in accordance with a reading control signal 50. An image data collecting part 2 successively applies output permission for luminance data output to the N image buffers, and if luminance data waiting its output exists in the image buffers, and outputs a writing address 34 and a writing control signal 51 to an image storing part 1 in accordance with previously applied partial picture information, so that the luminance data of the partial picture obtained from respective picture element forming parts is written in the partial picture of the image storing part 1. At the end of the formation of all the partial pictures, the image formation of one picture is completed.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は複数の画素生成部から成る画像生成装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an image generation device comprising a plurality of pixel generation sections.

2 ベージ 従来の技術 画像生成処理では一画素の輝度データを算出するために
多数の浮動小数演算を要し、一画面の画像を短時間で生
成するには高速の演算器を備えた画素生成部を多数用い
る必要がある。多数の画素生成部で算出した画素データ
は一つの画像記憶部に集められ、一画面の画像データと
して構成される。第2図に従来の画像生成装置の一例を
示す。
2 Page Conventional technology Image generation processing requires a large number of floating point operations to calculate the luminance data of one pixel, and in order to generate one screen image in a short time, a pixel generation unit equipped with a high-speed arithmetic unit is required. It is necessary to use many . Pixel data calculated by a large number of pixel generation units are collected in one image storage unit and configured as one screen of image data. FIG. 2 shows an example of a conventional image generation device.

以下第2図を参照しながら従来技術の詳細について述べ
る。
The details of the prior art will be described below with reference to FIG.

各画素の輝度を算出するN個の画素生成部11゜12.
13は互いに重なり合わない部分画面の各画素の輝度デ
ータ41,42.43と各画素の゛画面上の位置すなわ
ち画像記憶部1への書込アドレス31,32.33とを
それぞれ画像バッファ21.22.23に待ち時間なし
で出力する。
N pixel generation units 11°12. that calculate the brightness of each pixel.
13 stores the luminance data 41, 42, 43 of each pixel of a partial screen that does not overlap with each other and the write address 31, 32, 33 of each pixel on the screen, that is, the write address 31, 32, 33 to the image storage unit 1, respectively, to an image buffer 21. Output without waiting time on 22.23.

画像バッファ21,22.23は書込アドレスと輝度デ
ータとをバッファリングし、画像データ収集部2からの
読出制御信号によって指定されたただ1つの画像バッフ
ァだけが書込アドレス出力34と輝度データ出力44へ
書込アドレスと輝度データを出力可能となり、画像・(
・ノファ内i/i’出力すべきデータが存在すればVト
込アドレス34で指定された画像記憶部10画素に、画
像データ収集部2からの書込制御信号51に従って、輝
度−7’−タ44が書き込腫れる。
The image buffers 21, 22, and 23 buffer write addresses and brightness data, and only one image buffer designated by the read control signal from the image data collection unit 2 outputs the write address 34 and brightness data. It becomes possible to output the write address and brightness data to 44, and the image (
・If there is data to be output in the i/i' field, the 10 pixels of the image storage unit designated by the V-to-write address 34 are set to have a luminance of -7'- according to the write control signal 51 from the image data collection unit 2. Ta 44 is swollen due to writing.

画像データ収集部はN個の画像バッファ21゜22.2
3に対し、読出制御信号50により一つずつ順番に書込
アドレス出力34と輝度データ出力44への出力を可能
にする。
The image data collection unit has N image buffers 21°22.2
3, the read control signal 50 enables output to the write address output 34 and the luminance data output 44 one by one.

(例えば、情報処理学会マイク[コニ7ンピユータシン
ポジウム資料24−2画像生成相マルチマイクロコンピ
ュータシステノ、04〜5ページ)発明が解決しようと
する問題点 しかし上記の構成では、各画素生成部にhいて書込アド
レスの算出と画像バッファへの出力が必要となり、それ
だけの処理時間が必要となる。また画像バッファにおい
て書込アドレスを保持する必要があるため、小型化の点
で問題がある。さらに画像バッファから画像記憶部へ書
込アドレスを転送する結線が必璧となり、小型化の点−
C,=問題がある。
(For example, Information Processing Society of Japan Microphone [Koni 7 Computer Symposium Material 24-2 Image Generation Phase Multi-Microcomputer System, pp. 04-5) Problems to be Solved by the Invention However, in the above configuration, each pixel generation section Then, it is necessary to calculate the write address and output it to the image buffer, which requires a corresponding amount of processing time. Furthermore, since it is necessary to hold the write address in the image buffer, there is a problem in terms of miniaturization. In addition, the wiring that transfers the write address from the image buffer to the image storage unit is essential, and the point of miniaturization is -
C, = There is a problem.

問題点を解決するための手段 1−記問題点を解決するために本発明の画像41成装置
は、データ収集部より画像記憶部への書込アドレスを出
力するという構成を備えたものである。。
Means for Solving the Problems 1 - In order to solve the problems described above, the image forming apparatus of the present invention has a configuration in which the data collection section outputs a write address to the image storage section. . .

作  用 本発明は上記した構成により、各画素生成部からの輝度
データが、あらかじめ定められた部分画面に、あらかじ
め定められた1偵序で、画素が出力されることを利用し
て、画像データ収集部が画像記憶部への書込アドレスを
出力することに、Iす、画素生成部における書込アドレ
ス出力処理を削除し、画像バッファから書込アドレスを
保持する/こめの記憶容量を減じ、複数の画像バッファ
から画像記憶部への書込アドレス出力の結線が不安にな
ることとなる。
Effect of the Invention With the above-described configuration, the present invention generates image data by utilizing the fact that the luminance data from each pixel generation unit is outputted as pixels in a predetermined partial screen in a predetermined order. In order for the collection unit to output the write address to the image storage unit, the write address output processing in the pixel generation unit is deleted, and the storage capacity of the image buffer for holding the write address is reduced. This makes it difficult to connect the write address outputs from the plurality of image buffers to the image storage unit.

実施例 以下、本発明の実施例について第1図を参照して述べる
EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG.

N個の画素生成部11,12,13id5.1画面を適
当な数に分割された部分画面の各画素の輝度を算出する
。各画素生成部がどの部分画面を生成しているのかとい
う情報が部分画面の生成前に画像データ収集部2へ送ら
れている。画素生成部は部分画面の左上の画素から輝度
データの算出を開始し、右」−の画素へ順に輝度データ
を算出してゆく。以下順にその下の走査線の画素の輝度
データを算出し、最後に右下の画素の輝度データを算出
して、部分画面の生成を終了する。算出された輝度デー
タは順に画像バッファに送出待ち時間なしで送出される
N pixel generation units 11, 12, 13id5. Calculate the brightness of each pixel of a partial screen obtained by dividing one screen into an appropriate number. Information about which partial screen is being generated by each pixel generating section is sent to the image data collecting section 2 before generating the partial screen. The pixel generation unit starts calculating brightness data from the upper left pixel of the partial screen, and sequentially calculates brightness data from the pixels on the right side. Thereafter, the luminance data of the pixels of the scanning line below it are calculated in order, and finally the luminance data of the lower right pixel is calculated, and the generation of the partial screen is completed. The calculated luminance data is sequentially sent to the image buffer without waiting time.

N個の画像バッファ21,22.23は入力した輝度デ
ータをバッファリングし、読出制御信号5Qに従って輝
度データ出力44へ出力可能になりしだい輝度データを
出力する。
The N image buffers 21, 22, and 23 buffer the input luminance data, and output the luminance data as soon as it becomes possible to output it to the luminance data output 44 according to the readout control signal 5Q.

画像データ収集部2は、N個の画像バッファに順に輝度
データ出力44への出力許可を与え、画像バッファ内に
出力待ちの輝度データがあれば、あらかじめ与えられた
部分画面情報に従い書込アロへ・ ドレス34と書込制御信号61を画像記憶部1へ出力し
、各画素生成部からの部分画面の輝度データが画像記憶
部1の部分画面に書込まれる。
The image data collection unit 2 sequentially gives permission for output to the brightness data output 44 to the N image buffers, and if there is brightness data waiting to be output in the image buffer, the image data collection unit 2 outputs permission to the brightness data output 44 according to the partial screen information given in advance. - The address 34 and the write control signal 61 are output to the image storage section 1, and the luminance data of the partial screen from each pixel generation section is written to the partial screen of the image storage section 1.

部分画面の生成を終了した各画素生成部は、未生成の部
分画面の生成を開始し、この部分画面生成開始の情報が
画像データ収集部2へも送られ、部分画面の書込が開始
する。すべての部分画面の生成が終了した時点で一画面
の画像生成が終了する。
Each pixel generation unit that has finished generating a partial screen starts generating a partial screen that has not yet been generated, information on the start of partial screen generation is also sent to the image data collection unit 2, and writing of the partial screen starts. . The image generation for one screen ends when the generation of all partial screens ends.

発明の効果 本発明の画像生成装置では、各画素生成部における画像
記憶部への書込アドレス出力処理が省略できるため、画
素生成部での演算量を減少でき、画素生成処理を高速化
できる。また各画像バッファにおいて書込アドレスをバ
ッファリングする必要がないため、画像バッファの容量
を小さくでき、小型化の点で有利である。さらに各画像
バッファから画像記憶部への書込アドレスの結線をなく
せるため、小型化の点で有利である。
Effects of the Invention In the image generation device of the present invention, since the process of outputting a write address to the image storage unit in each pixel generation unit can be omitted, the amount of calculation in the pixel generation unit can be reduced and the pixel generation process can be sped up. Furthermore, since there is no need to buffer write addresses in each image buffer, the capacity of the image buffer can be reduced, which is advantageous in terms of miniaturization. Furthermore, since there is no need to connect write addresses from each image buffer to the image storage section, it is advantageous in terms of miniaturization.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例の  ブロック図、第2図は
従来例みブ防77図である。 1・・・・・画像記憶部、2・・・・・画像データ収集
部、11.12.13・・・・画素生成部、21,22
゜23・・・・画像バッファ、31.32,33.34
・・・・岩込アドレス、41.42.43.44・・・
・輝度データ、50・・−・・読出制御信号、51・・
・−書込制御信号。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional example. 1... Image storage unit, 2... Image data collection unit, 11.12.13... Pixel generation unit, 21, 22
゜23...Image buffer, 31.32, 33.34
...Iwagome address, 41.42.43.44...
・Brightness data, 50...Readout control signal, 51...
-Write control signal.

Claims (1)

【特許請求の範囲】[Claims] 画像の全画素の輝度データを記憶する画像記憶部と、各
画素の輝度データを生成する複数の画素生成部と、各画
素生成部からの輝度データを一時保持する複数の画像バ
ッファと、複数の画像バッファからの輝度データを収集
し各画像バッファに応じて画像記憶部への書込アドレス
を発生し収集した輝度データを画像記憶部へ書込む画像
データ収集部とを備え、各画素生成部が画像記憶部への
書込アドレスを発生せず、画像バッファに書込アドレス
を保持せず、画像データ収集部が画像バッファから書込
アドレスを収集しないことを特徴とする画像生成装置。
An image storage unit that stores brightness data of all pixels of an image, a plurality of pixel generation units that generate brightness data of each pixel, a plurality of image buffers that temporarily hold the brightness data from each pixel generation unit, and a plurality of an image data collection section that collects luminance data from the image buffer, generates a write address to the image storage section according to each image buffer, and writes the collected luminance data to the image storage section; An image generation device characterized in that the image data collection unit does not generate write addresses to an image storage unit, does not hold write addresses in an image buffer, and does not collect write addresses from the image buffer.
JP15644985A 1985-07-16 1985-07-16 Image forming device Pending JPS6217877A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15644985A JPS6217877A (en) 1985-07-16 1985-07-16 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15644985A JPS6217877A (en) 1985-07-16 1985-07-16 Image forming device

Publications (1)

Publication Number Publication Date
JPS6217877A true JPS6217877A (en) 1987-01-26

Family

ID=15627987

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15644985A Pending JPS6217877A (en) 1985-07-16 1985-07-16 Image forming device

Country Status (1)

Country Link
JP (1) JPS6217877A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015831A1 (en) * 1990-04-05 1991-10-17 Seiko Epson Corporation Page description language interpreter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157687A (en) * 1981-03-09 1982-09-29 Ibm Data processing system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57157687A (en) * 1981-03-09 1982-09-29 Ibm Data processing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015831A1 (en) * 1990-04-05 1991-10-17 Seiko Epson Corporation Page description language interpreter

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