CN102867291B

CN102867291B - Method for removing silk grains in silk scroll ancient painting images by means of various filter combination functions of PS (photo shop)

Info

Publication number: CN102867291B
Application number: CN201210316249.4A
Authority: CN
Inventors: 王国勇; 李建华; 文礼; 滕俊楷
Original assignee: HANGZHOU WENSLI SILK CO Ltd
Current assignee: HANGZHOU WENSLI SILK CULTURE CO., LTD.
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2015-01-07
Anticipated expiration: 2032-08-31
Also published as: CN102867291A

Abstract

The invention relates to the field of the processing of computer graphic information, in particular to a method for removing silk grains in silk scroll ancient painting images by means of various filter combination functions of PS (photo shop). The invention relates to the method for removing the silk grains in the silk scroll ancient painting images by means of the various filter combination functions of PS. In a silk scroll ancient painting, the part without ink color is a silk bottom, and the part with the ink color is an ink bottom. The method is characterized in that: the silk scroll ancient painting is converted into an image electronic document, the silk bottom is separated from the ink bottom by means of PS software, and black spots which are displayed in a black spot matrix manner on the silk bottom are separated out and are removed. According to the method, the high cost of artificial retouching can be saved, the damage to the image details caused by simple blurring can be prevented, and the important effects of improving efficiency, reducing the cost and improving the quality on the research and copy of Chinese ancient paintings are achieved.

Description

A kind of method adopting PS many kinds of filter combination functions to remove thin,tough silk line in silk scroll ancient painting image

Technical field

The present invention relates to computer picture field of information processing, specifically, is a kind of method adopting PS many kinds of filter combination functions to remove thin,tough silk line in silk scroll ancient painting image.

Background technology

Ancient Chinese famous painting handed down from ancient times is the important cultural heritages of the mankind, and protecting, study, put on display these ancient paintings, is the important topic that the whole world has the mechanisms such as the museum of these ancient paintings.By optics and computer technology, be input in computing machine by these ancient paintings, recycling high-precision printer copies these ancient paintings, be protect, study, one of most important means putting on display these ancient paintings.

In ancient Chinese famous painting handed down from ancient times, a sizable part is that the silk scroll be drawn on thin,tough silk is drawn.Thin,tough silk has intrinsic warp and weft.Therefore, by the method scanning or take, when converting ancient classical Chinese painting on silk to image electronic document, warp and weft pattern also becomes a part for image.Because graphoscope adopts the principle of raster scanning, therefore, in the middle of the process zooming in or out image electronic document, close with the yardstick (or multiple of yardstick) of display grating once the yardstick of thin,tough silk line, just mole interference fringe is produced, the display effect of effect diagram picture, is unfavorable for observing, studying and process image.When adopting printer print copy silk scroll ancient painting, as adopted same veined thin,tough silk as print media, when the warp and weft spacing of medium thin,tough silk line warp and weft spacing and original painting is close, produces mole interference fringe during printing, have a strong impact on the picture quality printed.In order to eliminate the warp and weft of ancient painting in electronic document, usually adopt two kinds of methods.The first is artificial colour-separation drafting, very labor intensive, and the second adopts the Blur filter function in PS to remove thin,tough silk line, and shortcoming is in this way, while removal thin,tough silk line, destroys image detail, image is thickened.

Therefore, eliminate the thin,tough silk line in silk scroll ancient painting image electronic document, prevent from producing mole interference fringe, the necessary step being the process of silk scroll ancient painting and copying in flow process in display and print procedure.

Summary of the invention

The present invention, just for problems of the prior art, provides a kind of method adopting PS many kinds of filter combination functions to remove thin,tough silk line in silk scroll ancient painting image.

The present invention, for achieving the above object, is achieved through the following technical solutions:

The present invention is a kind of method adopting PS many kinds of filter combination functions to remove thin,tough silk line in silk scroll ancient painting image, in silk scroll ancient painting, not the part of mass colour be at the bottom of thin,tough silk, the part of mass colour for the ink end, it is characterized in that, silk scroll ancient painting is transformed into image electronic document, by PS software, at the bottom of thin,tough silk and the ink end is separated, again the stain displayed with stain dot matrix way at the bottom of thin,tough silk is separated, removed.

Concrete steps of the present invention are as follows:

1), utilize discolor, Gaussian Blur Filter, hard contrast to isolate at the bottom of thin,tough silk and the ink end, does the masking-out of the black end;

2), utilize hard contrast to retain filter, isolate stain;

3), utilize ink end masking-out, the details at the protection ink end, the stain at the guarantee ink end does not participate in de-black point flow process below;

4), the stain utilized at the bottom of thin,tough silk, do a stain masking-out;

5), do the new layer of full figure, Gaussian Blur done to new layer, removes stain, simultaneously at the bottom of thin,tough silk and the details at the ink end also fuzzy;

6), by stain masking-out described in step 4), be added to layer described in step 5) and get on, then except stain position at the bottom of thin,tough silk, the details of remaining position all protects and from the impact of the Blur filter.

Poly-through above 6 steps, the stain overwhelming majority forming thin,tough silk line is removed.Owing to there being the priority of masking-out of the black end and stain masking-out to protect, most of image detail not destroy by Gaussian Blur Filter.

Beneficial effect of the present invention is as follows:

Ancient painting in the middle of long-term preservation process, owing to covering dirt, go mouldy, wrap slurry, fall the reasons such as alum, the thin,tough silk line at the bottom of thin,tough silk generally displays in the mode of the stain dot matrix of rule.As in PS, the simple method adopting the Blur filter, no doubt can eliminate these stains, but simultaneously at the bottom of thin,tough silk and the details of ink-covered area just lost.The present invention first at the bottom of thin,tough silk and the ink end separately, then the stain at the bottom of thin,tough silk is separated, then is removed.Like this, first ensure that the details at the ink end can not incur loss, secondly, ensure that the background color details at the bottom of thin,tough silk can not incur loss.

This programme, in implementation process, according to the actual conditions of former figure, and the resolution of scanning or shooting, adjusts the parameter of each filter, obtains and remove thin,tough silk line and retain the optimum efficiency of details.So both can save the high cost of artificial colour-separation drafting, simple fuzzy control process can be avoided again the injury of image detail, for Chinese ancient painting research and copy, play the important effect putting forward efficiency, cost declining, upgrading amount.

Embodiment

Below in conjunction with specific embodiment, technical scheme of the present invention is described in further detail.

Embodiment 1

1, first enter PS, open ancient painting image file to be processed, typical resolution is 300DPI;

2, LAB space is transformed into;

3, in the channel, L layer is copied, new layer called after " at the bottom of thin,tough silk ";

4, do Gaussian Blur to " at the bottom of thin,tough silk ", parameter is 4, removes stain;

5, to doing curve adjustment at the bottom of thin,tough silk, cover at the bottom of the thin,tough silk of hard contrast is formed.Can the Maximum and Minimum filter be utilized, reducing 4 pixels at the bottom of thin,tough silk, favourable to reservation details like this;

6, in the channel, L layer is copied, new layer called after " stain ";

7, use " hard contrast reservation " to " stain " layer, parameter is 2.Do curve adjustment, ash in the middle of eliminating, outstanding stain;

8, utilize thin,tough silk base map layer to do cover version, by " stain " layer, territory, non-thin,tough silk base area is all filled white, makes wherein without stain, turns stain layer;

9, in layer, by Background From Layer duplicating layer;

10, do high paste the Blur filter to duplicating layer, parameter is 4;

11, by the masking-out of the stain layer after reversion as duplicating layer;

12, CMYK space is converted back;

13, processed.

Finally; it is also to be noted that; what more than enumerate is only a specific embodiment of the present invention; obviously; the invention is not restricted to above embodiment; many distortion can also be had, all distortion that those of ordinary skill in the art can directly derive from content disclosed by the invention or associate, all should protection scope of the present invention be thought.

Claims

1. the method adopting PS many kinds of filter combination functions to remove thin,tough silk line in silk scroll ancient painting image, in silk scroll ancient painting, not the part of mass colour be at the bottom of thin,tough silk, the part of mass colour for the ink end, it is characterized in that, silk scroll ancient painting is transformed into image electronic document, by PS software, at the bottom of thin,tough silk and the ink end, is separated, the stain displayed with stain dot matrix way at the bottom of thin,tough silk is separated, removed, concrete steps are as follows again:

2), stain is isolated to utilizing hard contrast to retain filter at the bottom of thin,tough silk;

3), utilize ink the end masking-out, protection ink the end details, ensure ink the end in stain do not participate in step 4 below), 5), 6) de-black point flow process;

6), by step 4) described stain masking-out, be added to step 5) process after layer get on, then except stain position at the bottom of thin,tough silk, the details of remaining position all protects and from the impact of the Blur filter.