Color matching method and system
A color matching and to-be-matched technology, applied in the field of image processing, can solve problems such as large matching error, decreased sharpness, and image color cast, and achieve the effect of ensuring monotonous incrementality, realizing color matching, and avoiding hard transitions.
Active Publication Date: 2015-06-03
PEKING UNIV +1
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
This global implementation method has the following problems: ① There is an overall color cast in the image after matching; ② When the contrast of the image is reduced, it will lead to a decrease in clarity
In addition, the matching error in local areas, especially texture-rich areas, is often relatively large
Therefore, the color matching effect of this function is not good enough for production needs
[0004] For the above-mentioned problem of poor color matching effect existing in the prior art, no effective solution has been proposed yet
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0045] The present invention is mainly applied to adjust the color of the image to be matched to the color of the reference image with the same content as the image to be matched. The core idea is: the channel-by-channel localized histogram matching method is adopted to realize the color matching of multi-channel images, which is suitable for RGB, CMYK and other truncated color spaces are not suitable for closed color spaces such as HSV. The present invention first collects each color channel image of the image to be matched and the reference image; then respectively matches each corresponding color channel image of the image to be matched and the reference image; finally obtains the to be matched according to the matching result of each color channel image The final matching result of the image and the reference image. The present invention will be described in detail below with reference to specific embodiments and drawings.
[0046] figure 1 The structure of the image color m...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a color matching method and a color matching system, belonging to the technical field of image processing. The color matching method comprises the steps of sequentially acquiring same color channel images of images to be matched and reference images; then respectively matching the color channel images of the images to be matched and the reference images; and finally, obtaining the most matching result of the images to be matched and the reference images according to the matching results of all the color channel images. According to the color matching method, due to a local color matching mode, the accurate color matching between the images can be realized effectively, and the problems that the color cast, and the reduction of the brightness and the contrast caused by a globalized method and the like can be solved.
Description
Technical field [0001] The invention belongs to the technical field of image processing, and specifically relates to a color matching method and system. Background technique [0002] In the printing field, pre-press personnel often get the original electronic manuscript provided by the customer and the scanned manuscript of the corresponding printed matter at the same time. In order to make the proofing effect of the original electronic manuscript consistent with the proofing effect of the scanned manuscript of the corresponding printed matter, the prepress personnel need to color-match the original electronic manuscript and the scanned manuscript of the corresponding printed matter to ensure that their final proofing effects are consistent. At this time, the original electronic manuscript provides the image to be matched, and the scanned manuscript corresponding to the printed matter is the reference image. The content of the two is the same. [0003] At present, in production pr...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T5/50
Inventor 郎咸朋白小晶李平立袁梦尤
Owner PEKING UNIV