Automatic recognition method for yellow-colored rice in rice

An automatic identification, yellow grain technology, applied in the direction of character and pattern recognition, instruments, computer parts, etc., can solve the problem of rapid, objective, high accuracy, poor operability, poor repeatability, and detection time that are easily affected by the environment. It can overcome the problems of long detection time, fast operation and high accuracy.

Inactive Publication Date: 2008-09-24
CHINA AGRI UNIV
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Problems solved by technology

Due to the defects of long detection time, strong subjectivity, low accuracy, poor operability and repeatability, and being easily affected by the environment, this

Method used

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  • Automatic recognition method for yellow-colored rice in rice
  • Automatic recognition method for yellow-colored rice in rice
  • Automatic recognition method for yellow-colored rice in rice

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with accompanying drawing:

[0043] figure 1 It is a schematic diagram of the connection of the image acquisition and processing device of the present invention,

[0044] 1. Use the counting board and sampling board to take about 10 to 1000 grains of rice samples from the batch of rice samples to be tested, place the sampler on the scanner 1, collect images, and store them as 24-bit bmp format files. The brightness and contrast of the scanner 1 are set between -15 and 25.

[0045] 2. Utilize the yellow-grained rice detection system to identify the yellow-grained rice in the image on the computer 2, specifically:

[0046] a) read the original image information, store the chromaticity information of each pixel in each grain of rice, and its original chromaticity information is RGB color information;

[0047] b) Use the iterative method to segment the background and rice grains, and set the background ...

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Abstract

The invention discloses an automatic recognition method for yellow-colored rice, which belongs to the technical field of computer image processing. The method includes: rice samples are arranged in an image collector to collect original image information; the original image information is read, and the background is separated from the rice samples; the original chrominance information R, G and B values of every grain of rice, and the R, G and B chrominance values are transformed into an even color model chromaticity value L<*>a<*>b<*> through ideal chrominance models X, Y, Z; the characteristic chrominance value b<*> is selected and determined, and if the characteristic chrominance value b<*> of every grain of rice in all pixels exceeds a chrominance threshold value and the occupying rate is larger than an area threshold value, the rice is determined to be the yellow-colored rice. The chrominance threshold value and the area threshold value are set by an operator according to the variety and the producing area of the rice. The method of the invention can be widely applied to the detection process of rice quality in rice field acquisition and market transaction, thus resulting in rapid, objective and accurate detection.

Description

technical field [0001] The invention belongs to the technical field of computer image processing, and in particular relates to an automatic identification method for yellow-grained rice in rice. Background technique [0002] Yellow-grained rice refers to grains whose endosperm is yellow when brown rice is ground into first-class rice according to the national standard, which is obviously different in color from normal rice grains. The percentage of yellow-grained rice weight in the sample weight is called yellow-grained rice rate. The national standard GB / T 17891-1999 "High-quality Paddy" stipulates that the detection of yellow-grained rice is carried out according to the method specified in the national standard GB 1350-1999 "Paddy", but there is no yellow-grained rice detection in the national standard GB 1350-1999 "Paddy" In the description of the method, it is pointed out that the detection of yellow-grained rice is carried out according to the national standard GB 5496-...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/46B07C5/342
Inventor 侯彩云祝晓芳牛巍孙建平尚艳芬常国华
Owner CHINA AGRI UNIV
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