The color measurement system for spot color printing basing multispectral camera

Nanbo Liu; Weiqi Jin; Qinmei Huang; Li Song

doi:10.1117/12.2072383

5 December 2014 The color measurement system for spot color printing basing multispectral camera

Nanbo Liu, Weiqi Jin, Qinmei Huang, Li Song

Proceedings Volume 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition; 93011S (2014) https://doi.org/10.1117/12.2072383
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

Color measurement and control of printing has been an important issue in computer vision technology . In the past, people have used density meter and spectrophotometer to measure the color of printing product. For the color management of 4 color press, by these kind meters, people can measure the color data from color bar printed at the side of sheet, then do ink key presetting. This way have wide application in printing field. However, it can not be used in the case that is to measure the color of spot color printing and printing pattern directly. With the development of multispectral image acquisition, it makes possible to measure the color of printing pattern in any area of the pattern by CCD camera than can acquire the whole image of sheet in high resolution. This essay give a way to measure the color of printing by multispectral camera in the process of printing. A 12 channel spectral camera with high intensity white LED illumination that have driven by a motor, scans the printing sheet. Then we can get the image, this image can include color and printing quality information of each pixel, LAB value and CMYK value of each pixel can be got by reconstructing the reflectance spectra of printing image. By this data processing, we can measure the color of spot color printing and control it. Through the spot test in the printing plant, the results show this way can get not only the color bar density value but also ROI color value. By the value, we can do ink key presetting, that makes it true to control the spot color automatically in high precision.

Citation Download Citation

Nanbo Liu, Weiqi Jin, Qinmei Huang, and Li Song "The color measurement system for spot color printing basing multispectral camera", Proc. SPIE 9301, International Symposium on Optoelectronic Technology and Application 2014: Image Processing and Pattern Recognition, 93011S (5 December 2014); https://doi.org/10.1117/12.2072383

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
10 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Printing

Cameras

Imaging systems

Light sources

Spectrophotometry

CMYK color model

Color difference

Show All Keywords

Keywords/Phrases

Search In:

Publication Years