Image information extraction and calculation method and system for smart phone spectrum detection

Abstract

The invention discloses an image information extraction and calculation method for smart phone spectrum detection. The image information extraction and calculation method comprises the steps of: acquiring RGB images of a spectrum image, and rotating the images to a unified angle; selecting an effective image region of the images according to different samples; extracting RGB values in the selectedregion, and converting the RGB values in the region into a gray value; calculating absorbances of a sample by means of an image gray value inversion model to obtain the absorbances of standard samples with different concentrations according to tests, drawing a concentration-absorbance scatter diagram by taking the sample concentration as an abscissa and the absorbance as an ordinate, establishinga sample standard curve, and calculating the concentration of the actual sample. The image information extraction and calculation method is widely suitable for samples which can be tested by adoptinga spectrophotometric method, is suitable for smart phones of various models, and is simple in algorithm operation and high in precision.

Description

technical field [0001] The invention relates to the technical field of spectrum detection and image processing, in particular to an image information extraction and calculation method and system for spectrum detection of smart phones. Background technique [0002] Spectral analysis can be used to determine the chemical composition and relative content of substances, and plays an important role in the fields of food safety, biosafety, environmental monitoring, and medical care. Large-scale spectrometers used in laboratories are heavy and expensive, and cannot meet people's needs for real-time and on-site detection of target samples. Therefore, portable spectrometers have been continuously developed. Modern smartphones contain different sensor technologies that can be used in a wide variety of fields as stand-alone measuring instruments. In the spectral detection, the optical spectroscopic part can be integrated into an external device of the mobile phone, and it can be match...

AI Technical Summary

Problems solved by technology

The above color models are difficult to use widely

In addition, there are differences in the image display of different models of mobile phones. The method of using fixed pixels can be applied to the same model of mobile phones, but when used on different models of mobile phones, there may be problems such as failure to load image information or excessive data errors.

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