CN102082892A - Method for automatically identifying positive/negative film of negative film scanner - Google Patents
Method for automatically identifying positive/negative film of negative film scanner Download PDFInfo
- Publication number
- CN102082892A CN102082892A CN 201110004793 CN201110004793A CN102082892A CN 102082892 A CN102082892 A CN 102082892A CN 201110004793 CN201110004793 CN 201110004793 CN 201110004793 A CN201110004793 A CN 201110004793A CN 102082892 A CN102082892 A CN 102082892A
- Authority
- CN
- China
- Prior art keywords
- negative film
- positive
- analysis
- exposure
- distributed
- 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
Links
Images
Abstract
The invention discloses a method for automatically identifying a positive/negative film of a negative film scanner, which comprises the following steps of: a, starting the negative film scanner and carrying out automatic exposure in a default negative film mode; b, when the automatic exposure is stable, analyzing exposure parameters, a color space and a mean value; c, obtaining an analysis result, finishing identification if the analysis result is the same as the negative film mode, and switching the mode into a positive film mode if the analysis result is opposite to the negative film mode. The method for automatically identifying the positive/negative film of the negative film scanner can realize automatic identification of the positive/negative film by analyzing the exposure parameters of the positive/negative film, distribution of red gains and blue gains of the color space and the mean value of the red gains and the blue gains, and guarantees high identification success rate so as to meet the requirement of a user.
Description
Technical field
The present invention relates to electronic applications, relate in particular to the positive negative film automatic identifying method of a kind of negative film scanner.
Background technology
The Chinese invention patent application number is: " 03160326.2 ", name is called: disclose a kind of method that is applicable to the automatic identification egative film of scanner in the application documents of " discern device, the method for egative film automatically and store the storage medium of its computer program ", be used for discerning the egative film that is placed on scanner.At first, be placed on egative film in the scanner by the scanner preview, to obtain original preview image.Original preview image comprises the negative map picture, and original preview image has pixel, and described first pixel has first hue value.Then, pixel is carried out pixel fill, cross bright and dark excessively part in the original preview image to get rid of, and obtain image preview figure.Then,, image preview figure is carried out the frames images choosing, select picture frame with frame according to first hue value of each pixel.At last, respectively each picture frame is carried out image segmentation, with identification negative map picture.
Above-mentioned patent document is described in detail the method for egative film identification, discerns automatically but this egative film recognition methods can not align negative film.Use the negative film scanner of above-mentioned technology, need the user to come corresponding positive of manual adjustments or negative film exposal model, just can scan normal egative film picture according to the type of egative film.
Summary of the invention
The technical problem that the present invention mainly solves provides the positive negative film automatic identifying method of a kind of negative film scanner, can realize the automatic identification of positive negative photo plane, and guarantees high recognition success rate, to satisfy user's demand.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of negative film scanner positive negative film automatic identifying method, may further comprise the steps:
A. start negative film scanner, be defaulted as under the negative film pattern and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with the negative film pattern, then translative mode is positive tablet mode.
Wherein, in the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
Wherein, in the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
Wherein, in the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
For solving the problems of the technologies described above, another technical solution used in the present invention is: provide a kind of negative film scanner positive negative film automatic identifying method, may further comprise the steps:
A. start negative film scanner, be defaulted as under the positive tablet mode and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with positive tablet mode, then translative mode is the negative film pattern.
Wherein, in the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
Wherein, in the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
Wherein, in the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
The invention has the beneficial effects as follows: the negative film scanner that is different from prior art can not be discerned the defective of positive negative film automatically, the positive negative film automatic identifying method of negative film scanner of the present invention, by the exposure parameter of positive negative film, red gain and the distribution of blue gain and the average analysis of red gain and blue gain of color space, can realize the automatic identification of positive negative photo plane, and guarantee high recognition success rate, to satisfy user's demand.
Description of drawings
Fig. 1 is the flow chart of steps of positive negative film automatic identifying method first embodiment of negative film scanner of the present invention;
Fig. 2 is the flow chart of steps of positive negative film automatic identifying method second embodiment of negative film scanner of the present invention;
Fig. 3 is the positive negative film exposure distribution figure of the positive negative film automatic identifying method of negative film scanner of the present invention;
Fig. 4 is the red gain and the blue gain analysis chart of the positive negative film color space of the positive negative film automatic identifying method of negative film scanner of the present invention;
Fig. 5 is the positive negative film identification software flow chart of the positive negative film automatic identifying method of negative film scanner of the present invention.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized purpose and effect, give explanation below in conjunction with execution mode and conjunction with figs. are detailed.
Red gain (Rgain) is the ratio of G and R in the RGB numerical value.
Blue gain (Bgain) is the ratio of G and B in the RGB numerical value.
See also Fig. 1, in the flow chart of steps of positive negative film automatic identifying method first embodiment of negative film scanner of the present invention, said method comprising the steps of:
A. start negative film scanner, be defaulted as under the negative film pattern and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with the negative film pattern, then translative mode is positive tablet mode.
The positive negative film automatic identifying method of negative film scanner of the present invention, by the exposure parameter of positive negative film, red gain and the distribution of blue gain and the average analysis of red gain and blue gain of color space, can realize the automatic identification of positive negative photo plane, and guarantee high recognition success rate, to satisfy user's demand.In this embodiment, be defaulted as the negative film pattern earlier, the analysis after exposing finds whether exposure parameter, color space and the average after the exposure be consistent with the parameters of negative film, if unanimity then think negative film finishes to judge.If inconsistent then think positive, translative mode is to positive tablet mode.
In the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
In the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
In the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
See also Fig. 2, in the flow chart of steps of positive negative film automatic identifying method second embodiment of negative film scanner of the present invention, said method comprising the steps of:
A. start negative film scanner, be defaulted as under the positive tablet mode and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with positive tablet mode, then translative mode is the negative film pattern.
The positive negative film automatic identifying method of negative film scanner of the present invention, by the exposure parameter of positive negative film, red gain and the distribution of blue gain and the average analysis of red gain and blue gain of color space, can realize the automatic identification of positive negative photo plane, and guarantee high recognition success rate, to satisfy user's demand.In this embodiment, be defaulted as positive tablet mode earlier, the analysis after exposing finds whether exposure parameter, color space and the average after the exposure be consistent with the parameters of positive, if unanimity then think positive finishes to judge.If inconsistent then think negative film, translative mode is to the negative film pattern.
In the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
In the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
In the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
The present invention can successfully discern the positive and the negative film of negative film scanner, and in 25 positives that detect in actual field and 25 the negative film egative films, recognition success rate can reach 100%.
Referring to Fig. 3～Fig. 5, automatic recognition principle of the present invention is: find that in the RGB data analysis through a large amount of positive egative films and negative photo plane its exposure and RGB component are equipped with bigger difference in the distribute bits of color space.
The first, the difference of exposure parameter:
With ISO=100 is example, and the time for exposure of most of negative film, the time for exposure of most of positive then was distributed between 1ms～100ms about 60ms～200ms.The backlight illumination of plain scan instrument provides a good environment for positive negative film detects.
The second, the difference of color space distribution:
Can get access to Rgain=G/R, Bgain=G/B from the RGB data.The two-dimensional space of being made up of Rgain and Bgain comes positive and the residing zone of negative film that bigger difference is arranged as can be seen.(seeing also Fig. 2)
Three, average analysis:
Consider that different egative films have different colors, particularly big color lump, the result who draws can allow the color space analysis produce erroneous judgement, adopts average to analyze Rgain, and Bgain can effectively reduce the erroneous judgement probability.
Four, weight analysis:
For above difference, give and different weights, the size in conjunction with the possibility of various analyses calculates final judged result again.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (8)
1. positive negative film automatic identifying method of negative film scanner is characterized in that: may further comprise the steps:
A. start negative film scanner, be defaulted as under the negative film pattern and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with the negative film pattern, then translative mode is positive tablet mode.
2. the positive negative film automatic identifying method of negative film scanner according to claim 1, it is characterized in that: in the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
3. the positive negative film automatic identifying method of negative film scanner according to claim 1 is characterized in that: in the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
4. the positive negative film automatic identifying method of negative film scanner according to claim 1 is characterized in that: in the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
5. positive negative film automatic identifying method of negative film scanner is characterized in that: may further comprise the steps:
A. start negative film scanner, be defaulted as under the positive tablet mode and do automatic exposure;
B. when automatic exposure is stablized, carry out the analysis of exposure parameter, the analysis and the average analysis of color space;
C. obtain analysis result,, then finish identification if analysis result is identical with the pattern of negative film; If analysis result is opposite with positive tablet mode, then translative mode is the negative film pattern.
6. the positive negative film automatic identifying method of negative film scanner according to claim 4, it is characterized in that: in the analysis of the exposure parameter in described step b, the time for exposure of positive is distributed in 1ms～100ms interval, and the time for exposure of negative film is distributed in 60ms～200ms interval.
7. the positive negative film automatic identifying method of negative film scanner according to claim 4 is characterized in that: in the analysis of the color space in described step b, the positive red gain is distributed in 0～350 interval, and the red gain of negative film is distributed in more than 350 interval; The positive blue gain is distributed in 0～100 interval, and the blue gain of negative film is distributed in more than 100 interval.
8. the positive negative film automatic identifying method of negative film scanner according to claim 4 is characterized in that: in the average of described step b was analyzed, described average analysis result was the red gain of positive and negative film and the average result of blue gain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004793 CN102082892A (en) | 2011-01-11 | 2011-01-11 | Method for automatically identifying positive/negative film of negative film scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110004793 CN102082892A (en) | 2011-01-11 | 2011-01-11 | Method for automatically identifying positive/negative film of negative film scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102082892A true CN102082892A (en) | 2011-06-01 |
Family
ID=44088636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110004793 Pending CN102082892A (en) | 2011-01-11 | 2011-01-11 | Method for automatically identifying positive/negative film of negative film scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102082892A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001194732A (en) * | 2000-01-07 | 2001-07-19 | Canon Inc | Bar code reading device, bar code reading method and recording medium |
| CN1381811A (en) * | 2002-04-17 | 2002-11-27 | 力捷电脑股份有限公司 | Scanning method able to get correction parameters |
| JP2003057798A (en) * | 2001-08-10 | 2003-02-26 | Noritsu Koki Co Ltd | Image plane detecting device |
| CN101790020A (en) * | 2009-09-28 | 2010-07-28 | 苏州佳世达电通有限公司 | Film scanning method |
-
2011
- 2011-01-11 CN CN 201110004793 patent/CN102082892A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001194732A (en) * | 2000-01-07 | 2001-07-19 | Canon Inc | Bar code reading device, bar code reading method and recording medium |
| JP2003057798A (en) * | 2001-08-10 | 2003-02-26 | Noritsu Koki Co Ltd | Image plane detecting device |
| CN1381811A (en) * | 2002-04-17 | 2002-11-27 | 力捷电脑股份有限公司 | Scanning method able to get correction parameters |
| CN101790020A (en) * | 2009-09-28 | 2010-07-28 | 苏州佳世达电通有限公司 | Film scanning method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102129693B (en) | Image vision significance calculation method based on color histogram and global contrast | |
| CN103699532B (en) | Image color retrieval method and system | |
| CN101620679B (en) | Method for eliminating red eye in image | |
| JP5810628B2 (en) | Image processing apparatus and image processing program | |
| US20110050723A1 (en) | Image processing apparatus and method, and program | |
| CN110161233B (en) | Rapid quantitative detection method for immunochromatography test paper card | |
| CN1761204A (en) | System for blocking off erotic images and unhealthy information in internet | |
| CN109636825A (en) | Seal graphics dividing method, device and computer readable storage medium | |
| CN110390648A (en) | A kind of image high-intensity region method distinguished based on unsaturation and saturation bloom | |
| CN108806638B (en) | Image display method and device | |
| JP2010191968A (en) | Image enhancement method and image enhancement device | |
| KR20120132315A (en) | Image processing apparatus, image processing method, and computer readable medium | |
| CN110222555B (en) | Method and device for detecting skin color area | |
| CN115482529A (en) | Method, equipment, storage medium and device for recognizing fruit image in near scene | |
| CN112634248B (en) | Particle size measurement system and method for granular raw material, electronic device and storage medium | |
| CN106446889B (en) | A kind of local recognition methods of logo and device | |
| CN111062926B (en) | Video data processing method, device and storage medium | |
| CN106415596A (en) | Segmentation based image transform | |
| CN107292892A (en) | The dividing method and device of video frame images | |
| CN102082892A (en) | Method for automatically identifying positive/negative film of negative film scanner | |
| CN105893578A (en) | Method and device for selecting photos | |
| CN111083468B (en) | Short video quality evaluation method and system based on image gradient | |
| CN114418951A (en) | Pad detection method and device, computer equipment and storage medium | |
| CN113962936A (en) | Picture cleaning method and system and intelligent device | |
| CN109919924A (en) | A method of suitable for high-volume HE dyeing picture cell number wordization processing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: YAO XUEWEN Free format text: FORMER OWNER: SHENZHEN IMAGE TECHNOLOGY CO., LTD. Effective date: 20111115 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20111115 Address after: 518000, B402, garden city digital building, 1079 Nanhai Road, Guangdong, Shenzhen, Nanshan District Applicant after: Yao Xuewen Address before: 518000, B402, garden city digital building, 1079 Nanhai Road, Guangdong, Shenzhen, Nanshan District Applicant before: MYT-Image Technology (Shenzhen) Co., Ltd. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110601 |