KR920006128A - Color correction method and apparatus for high speed thermal transfer color printer - Google Patents

Color correction method and apparatus for high speed thermal transfer color printer Download PDF

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Publication number
KR920006128A
KR920006128A KR1019900015523A KR900015523A KR920006128A KR 920006128 A KR920006128 A KR 920006128A KR 1019900015523 A KR1019900015523 A KR 1019900015523A KR 900015523 A KR900015523 A KR 900015523A KR 920006128 A KR920006128 A KR 920006128A
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South Korea
Prior art keywords
color
color correction
data
correction data
dram
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KR1019900015523A
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Korean (ko)
Inventor
박병옥
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한태희
주식회사 금성사
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Priority to KR1019900015523A priority Critical patent/KR920006128A/en
Publication of KR920006128A publication Critical patent/KR920006128A/en

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Abstract

내용 없음No content

Description

고속 열전사 칼라프린터의 색보정 방법 및 그 장치Color correction method and apparatus for high speed thermal transfer color printer

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명 방법을 설명하기 위한 플로우 챠트.1 is a flow chart for explaining the method of the present invention.

제2도는 본 발명 장치의 블록 구성도.2 is a block diagram of an apparatus of the present invention.

제3도의 (가)는 본 발명 장치의 DRAM에 기억된 색보정데이타 테이블의 구조도. (나)는 본 발명 장치의 DRAM에 기억된 발열수준 데이타 테이블구조도. (다)는 본 발명 장치의 SRAM에 기억된 열전사 헤드 발열 요소에 대응하는 발열시간 데이타 테이블의 구조도.3A is a structural diagram of a color correction data table stored in a DRAM of the present invention device. (B) is a heat generation level data table structure diagram stored in the DRAM of the present invention device. (C) is a structural diagram of a heat generation time data table corresponding to the heat transfer head heat generating element stored in the SRAM of the present invention device.

Claims (2)

Y,M 및 C 각각에 대한 광밀도를 32768단계로 세분하여 Y,M 및 C에 대한 256계조의 감색 원색의 계조데이타를 갖도록 Y,M 및 C색 보정데이타 테이블을 각각 구비하고, Y,M 및 C의 광밀도에 대한 계조데이타를 발열시간 단위로 변환하여 Y,M 및 C 발열수준데이타 테이블을 각각 구비하는 제1과정과; R,G 및 B 데이타를 Y,M 및 C에 대응하여 독출한 비트로 상기 Y,M 및 C 색보정데이타를 구하는 제2과정과; 상기 Y,M 및 C 색보정데이타가 지시하는 Y,M 및 C 발열수준 데이타 테이블에서 발열 수순 데이타를 해독하여 Y,M 및 C 색보정데이타 테이블의 어드레스를 구성하고, 상기 어드레스가 지시하는 Y,M 및 C 색보정데이타 테이블의 색보정데이타를 해독하여 Y,M 및 C감마 보정데이타를 구하는 제3과정과; 상기 제2과정 및 제3과정에서 구한 색보정 및 감마보정된 Y,M 및 C 데이타를 화상 1라인의 모든 화소에 대응하여 순차적으로 구하고 열전사 헤드에 전송하여 칼라 프린트를 수행하는 제4과정으로 이루어진 것을 특징으로 하는 고속 열전사 칼라프린터의 색 보정 방법.Y, M and C color correction data tables are respectively provided to subdivide the light density of Y, M and C into 32768 steps to have 256 gray levels of primary colors for Y, M and C. And a first process of converting the grayscale data for the optical density of C into units of exothermic time, and having Y, M and C exothermic level data tables, respectively; A second step of obtaining the Y, M, and C color correction data using the bits read from the R, G, and B data corresponding to Y, M, and C; Decode the exothermic sequence data from the Y, M and C color level data table indicated by the Y, M and C color correction data to form an address of the Y, M and C color correction data table, and indicate Y, A third step of deciding the color correction data of the M and C color correction data tables to obtain Y, M and C gamma correction data; A fourth process of sequentially obtaining color corrected and gamma corrected Y, M, and C data obtained in the second and third processes corresponding to all the pixels of an image line and transmitting the color to the thermal transfer head to perform color printing. Color correction method of a high-speed thermal transfer color printer, characterized in that made. 장치 전체를 제어하는 도시에 본 발명 방법에 기억된 CPU(1)와, 상기 CPU(1)에 R,G,B 데이타를 공급하는 통상의 색신호 처리수단(2)과, R,G,B 데이타가 각각 기억되는 R프레임 메모리(3), G프레임 메모리(4) 및 B프레임 메모리(5)와; Y,M,C 각각에 대한 광밀도를 32768단계로 구분하여 256계조의 색보정데이타를 기억시킨 Y색보정 DRAM(6), M색보정 DRAM(7) 및 C색보정 DRAM(8)과; 상기 DRAM(6,7,8)에 기억된 256계조의 색 보정데이타에 대응함과 동시에 상기 DRAM(6,7,8)에 기억된 Y,M,C색보정데이타가 열전사 헤드의 발열시간 단위로 변환된 발열수준 데이타를 기억시킨 Y발열수준 DRAM(9), M발열수준 DRAM(10) 및 C발열수준 DRAM(11)과; 프린트되는 화상1라인에 대한 각 화소에 대응하여 상기 Y,M,C 발열수준 데이타가 순차적으로 기억되는 SRAM(12)과; 상기 SRAM(12)의 출력에 의하여 칼라 프린터를 구동하는 통상의 프린터 구동수단(13)으로 구성한 것을 특징으로 한 고속 열전사 칼라 프린터의 색보정 장치.CPU 1 stored in the method of the present invention in the illustration of controlling the entire apparatus, normal color signal processing means 2 for supplying R, G, B data to the CPU 1, and R, G, B data An R frame memory 3, a G frame memory 4 and a B frame memory 5, each of which is stored; A Y color correction DRAM 6, a M color correction DRAM 7, and a C color correction DRAM 8 which store 256 gray-level color correction data by dividing the light density for each of Y, M, and C in 32768 steps; The Y, M, and C color correction data stored in the DRAMs 6, 7, 8 correspond to the 256-color color correction data stored in the DRAMs 6, 7, 8, and the heat generation time unit of the thermal head. A Y heating level DRAM 9, an M heating level DRAM 10, and a C heating level DRAM 11 which store the generated heating level data; An SRAM (12) for sequentially storing the Y, M, and C heating level data corresponding to each pixel of one image line to be printed; A color correction apparatus for a high speed thermal transfer color printer, characterized by comprising ordinary printer driving means (13) for driving a color printer by the output of the SRAM (12). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900015523A 1990-09-28 1990-09-28 Color correction method and apparatus for high speed thermal transfer color printer KR920006128A (en)

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KR1019900015523A KR920006128A (en) 1990-09-28 1990-09-28 Color correction method and apparatus for high speed thermal transfer color printer

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Application Number Priority Date Filing Date Title
KR1019900015523A KR920006128A (en) 1990-09-28 1990-09-28 Color correction method and apparatus for high speed thermal transfer color printer

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KR920006128A true KR920006128A (en) 1992-04-27

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