CN101890409A - Method for sorting substance particles based on colour space conversion - Google Patents
Method for sorting substance particles based on colour space conversion Download PDFInfo
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- CN101890409A CN101890409A CN2010102329034A CN201010232903A CN101890409A CN 101890409 A CN101890409 A CN 101890409A CN 2010102329034 A CN2010102329034 A CN 2010102329034A CN 201010232903 A CN201010232903 A CN 201010232903A CN 101890409 A CN101890409 A CN 101890409A
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Abstract
The invention discloses a method for sorting substance particles based on colour space conversion. The method comprises the following steps of: acquiring an RGB colour image of the substance particles; converting the RGB colour image to an HIS or HSV colour space for setting a sorting threshold value; displaying the acquired image of the substance particles; determining upper limits and lower limits of chromaticity, saturation degree and brightness (or luminosity) according to H, S, I (or V) value ranges of foreign color particles or impurities in the substance particles; after setting the sorting threshold value, marking the removed colour ranges with different colours; displaying the sorting result on a screen; and setting a size value according to the number of the marked points on the image of the substance particles of the sorting effect; after the displayed sorting effect reaches the ideal effect, downloading the threshold value and the size value to hardware equipment; on the basis of the hardware equipment for processing an image, converting the RGB colour image to the HIS or HSV colour image space, and comparing the RGB colour image and the threshold value input to the hardware equipment; and driving a valve to act according to the comparison result, and removing the foreign color particles from the substance particles so as to fulfill the aim of sorting.
Description
Technical field
The invention belongs to a kind of color selector method for separating, be specifically related to a kind ofly utilize photoelectric detecting technology that the substance particles image is shown and carry out color space conversion, can require be provided with the method for color selector sorting parameter according to different sortings.
Background technology
Along with the raising of industrial and agricultural products manufacture field quality and the development of technology, color selector more and more widely be used for processing industries such as rice, coarse cereals, seed, plastics and ore.Need the sorting parameter repeatedly be set according to different colours in some industry; the precision of the product selecting parameter of different brackets is also inequality; because these demands all have abundant colouring information; and the grey value difference that present most of color selector is based on granule materials is distinguished heterochromatic grain or impurity; this technology can't satisfy the sorting requirement of the close material of color, such as light yellow and green raisin.
Also occurred the colored color selector of a class in the market, its principle is to use the colour imaging device to gather the RGB color value of substance particles, determines the sorting parameter according to the scope of R (red), G (green), B (indigo plant) value again.This method with based on the color selection method of gray value certain improvement is arranged, but unsatisfactory by discovery in the practical application for the separating effect of the close material of color.Discover and similar color can not be included within the scope with RGB color value interval value, and carry out color space conversion, rgb value is converted to colourity (H), saturation degree (S) and brightness (I) (or shading value (V)) just can comprises similar color with the upper and lower bound of colourity, the upper and lower bound of saturation degree, the upper and lower bound of brightness (or lightness).
Use the occasion of color selector at some, such as reclaiming plastics, need select the plastic grain of different colours several times, the sorting of different batches requires also different, and this just requires the sorting state of operator's energy Real Time Observation color selector and requires color selector is adjusted to needed state according to sorting.
Summary of the invention
Technical problem solved by the invention is to provide a kind of satisfied enrich color material sorting requirement, the method for substance particles being carried out sorting based on color space conversion.
Technical problem solved by the invention realizes by the following technical solutions:
A kind of based on color space conversion to the method that substance particles carries out sorting, it is characterized in that, may further comprise the steps:
1. the RGB coloured image of gathering substance particles is transformed into HSI or the sorting threshold value setting is carried out in the HSV color space;
2. show the image of the substance particles of gathering in real time, click the coloured image on the display device, can see the value of colourity (H), saturation degree (S) and the brightness (I) (or shading value (V)) of pixel;
3. require to determine the upper and lower bound of colourity, the upper and lower bound of saturation degree, the upper and lower bound of brightness (or shading value) according to the upper and lower bound of the upper and lower bound of H, the S of heterochromatic grain that exists in the substance particles or impurity, upper and lower bound that I (or V) value scope is determined colourity, saturation degree, brightness (or shading value) or according to other sortings;
4. after setting the sorting threshold values, disallowable color gamut is marked as different colors, and shows the result of sorting on screen;
5. according to what of gauge point on the substance particles image on the separating effect, sizes values is set, sizes values is to calculate according to what of regional extent internal labeling point, when the number of regional internal labeling point during more than the sizes values of setting, just can be taken as bad particle disposal;
6., can continue to adjust threshold values and sizes values if the separating effect of Xian Shiing is improper;
7. after the separating effect of Xian Shiing reaches ideal effect, threshold values and sizes values are downloaded to hardware device;
8. the hardware device of handling based on image, the RGB coloured image is transformed into the threshold values of importing on HSI or HSV coloured image space and the hardware device compares,, drive valve event according to comparative result, reject the heterochromatic grain in the substance particles, reach the purpose of sorting.
Described hardware device is the color selector that has display device commonly used.
The beneficial effect that the present invention has is to sub-elect the close material of color, sharpness of separation for the less material of color distortion has also improved greatly, owing to have display device on the hardware device, can monitor the sorting state in real time, click the color value that display device just can display pixel point, just can determine the sorting parameter according to the sorting requirement again, and the darker color mark of just disallowable part use comes out, the effect of simulation sorting, operating process is directly perceived, simple, the degree of accuracy is high.
Description of drawings
Fig. 1 is the schematic diagram of display interface among the embodiment.
The specific embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with the specific embodiment, further set forth the present invention.
A kind of based on color space conversion to the method that substance particles carries out sorting, may further comprise the steps:
1. the RGB coloured image of gathering substance particles is transformed into HSI or the sorting threshold value setting is carried out in the HSV color space;
2. show the image of the substance particles of gathering in real time, click the coloured image on the display device, can see the value of colourity (H), saturation degree (S) and the brightness (I) (or shading value (V)) of pixel;
3. require to determine the upper and lower bound of colourity, the upper and lower bound of saturation degree, the upper and lower bound of brightness (or shading value) according to the upper and lower bound of the upper and lower bound of H, the S of heterochromatic grain that exists in the substance particles or impurity, upper and lower bound that I (or V) value scope is determined colourity, saturation degree, brightness (or shading value) or according to other sortings;
4. after setting the sorting threshold values, disallowable color gamut is marked as different colors, and shows the result of sorting on screen;
5. according to what of gauge point on the substance particles image on the separating effect, sizes values is set, sizes values is to calculate according to what of regional extent internal labeling point, when the number of regional internal labeling point during more than the sizes values of setting, just can be taken as bad particle disposal.
6., can continue to adjust threshold values and sizes values if the separating effect of Xian Shiing is improper;
7. after the separating effect of Xian Shiing reaches ideal effect, threshold values and sizes values are downloaded to hardware device;
8. the hardware device of handling based on image, the RGB coloured image is transformed into the threshold values of importing on HSI or HSV coloured image space and the hardware device compares,, drive valve event according to comparative result, reject the heterochromatic grain in the substance particles, reach the purpose of sorting.
Below just with reference to accompanying drawing 1, further specify for a specific embodiment,
Represent button, display interface shown in the drawings mainly is divided into four zones, image display area, camera state area, display field and parameter setting area.The camera state area mainly is to show whether camera work is normal on the color selector.Needing the substance particles of sorting to put into color selector separation chamber, gather the coloured image of substance particles earlier.Can see the real-time color image of substance particles at " image display area " of display interface.Click the image on " image display area ", can see the data of " H, S, I/V " and " R, G, B " at " display field ".The value of the colourity of the heterochromatic substance particles of Ti Chuing (H), saturation degree (S) and brightness (I) (or shading value (V)) as required, set the upper and lower bound of colourity (H), the upper and lower bound of saturation degree (S), the upper and lower bound of brightness (I) (or shading value (V)) in " parameter setting area ", H, the S of its heterochromatic substance particles, I (or V) value are included in the scope of upper limit lower limit." parameter setting area " has five groups, be " or " relation, wherein one group of numerical value is effective as long as have, and separating effect is just arranged.These five groups of parameters are provided with, and can select, and are convenient to reject multiple heterochromatic substance particles like this.After setting the sorting threshold values, click " separating effect " button of " display field ", can see separating effect at " image display area ", disallowable heterochromatic substance particles is labeled darker color.The heterochromatic particle of Ti Chuing is less with normal coloured particles difference on color if desired, on separating effect, normal coloured particles also has the sub-fraction quilt than the dark colour mark, though such gauge point seldom, but also can be thought disallowable particle by color selector, disallowable for fear of normal coloured particles, can set " size " value in the parameter setting area.Sizes values is to calculate according to what of regional extent internal labeling point, when the number of regional internal labeling point during more than the sizes values of setting, just can be taken as bad particle disposal.After the setting of " size " value is finished,, can continue to adjust threshold values and sizes values if the separating effect that " image display area " shows is improper.After the separating effect that " image display area " shows reaches ideal effect, click " parameter downloads " button of " parameter setting area ", threshold values and sizes values are downloaded to hardware device.Hardware device based on image is handled is transformed into the threshold values of importing on HSI or HSV coloured image space and the hardware device with the RGB coloured image and compares, and according to comparative result, drives valve event, rejects heterochromatic particle, reaches the purpose of sorting.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (2)
- One kind based on color space conversion to the method that substance particles carries out sorting, it is characterized in that, may further comprise the steps:A. the RGB coloured image of gathering substance particles is transformed into HSI or the sorting threshold value setting is carried out in the HSV color space;B. show the image of the substance particles of gathering in real time, click the coloured image on the display device, can see the value of colourity (H), saturation degree (S) and the brightness (I) (or shading value (V)) of pixel;C. require to determine the upper and lower bound of colourity, the upper and lower bound of saturation degree, the upper and lower bound of brightness (or shading value) according to the upper and lower bound of the upper and lower bound of H, the S of heterochromatic grain that exists in the substance particles or impurity, upper and lower bound that I (or V) value scope is determined colourity, saturation degree, brightness (or shading value) or according to other sortings;D. after setting the sorting threshold values, disallowable color gamut is marked as different colors, and shows the result of sorting on screen;E. according to what of gauge point on the substance particles image on the separating effect, sizes values is set, sizes values is to calculate according to what of regional extent internal labeling point, when the number of regional internal labeling point during more than the sizes values of setting, just can be taken as bad particle disposal;If f. the separating effect of Xian Shiing is improper, can continue to adjust threshold values and sizes values;G. after the separating effect of Xian Shiing reaches ideal effect, threshold values and sizes values are downloaded to hardware device;H. the hardware device of handling based on image is transformed into the threshold values of importing on HSI or HSV coloured image space and the hardware device with the RGB coloured image and compares, and according to comparative result, drives valve event, rejects the heterochromatic grain in the substance particles.
- According to claim 1 described based on color space conversion to the method that substance particles carries out sorting, it is characterized in that: described hardware device is the color selector that has display device commonly used.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104978740A (en) * | 2015-05-10 | 2015-10-14 | 刘畅 | Component automatic measurement method based on image color feature |
| CN105562361A (en) * | 2015-12-23 | 2016-05-11 | 西安工程大学 | Independent sorting method of fabric sorting robot |
| CN106156801A (en) * | 2016-07-27 | 2016-11-23 | 合肥高晶光电科技有限公司 | A kind of coloured particle system of selection based on image procossing |
| CN107046608A (en) * | 2016-02-08 | 2017-08-15 | 富士施乐株式会社 | Terminal installation, diagnostic system and diagnostic method |
| CN110639835A (en) * | 2019-09-25 | 2020-01-03 | 武汉易视维科技有限公司 | Online composite rod visual detection system |
| CN115382782A (en) * | 2022-08-31 | 2022-11-25 | 哈尔滨工程大学 | Rice color selection method based on improved center positioning method and HSV color model |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104978740A (en) * | 2015-05-10 | 2015-10-14 | 刘畅 | Component automatic measurement method based on image color feature |
| CN105562361A (en) * | 2015-12-23 | 2016-05-11 | 西安工程大学 | Independent sorting method of fabric sorting robot |
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| CN115382782A (en) * | 2022-08-31 | 2022-11-25 | 哈尔滨工程大学 | Rice color selection method based on improved center positioning method and HSV color model |
| CN115382782B (en) * | 2022-08-31 | 2023-11-10 | 哈尔滨工程大学 | Rice color selection method based on improved center positioning method and HSV color model |
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Application publication date: 20101124 |