HU Wei-jun. Research on measurement of Cd( II) concentration based on color detection of RGB image[J]. 2016, 35(10): 17-19. DOI: 10.13873/J.1000-9787(2016)10-0017-03.
It is discovered that the color of the reaction solution between Cd( II) and 1-( 4-nitrophenyl)-3-[4-( phenylazo) phenyl]-1-triazen changes corresponding to the change of Cd( II) concentration from 0. 0660 μg/m L to 0. 648 2 μg / m L in experiments. For hunting for relationship between color changes and Cd( II) concentrations
the research includes measurement structure
image acquisition of experiments
data process of RGB image acquired. Among them
the keys of image processing in RGB images are the image positioning
image segmentation and V values calculation when RGB format transformed to YUV format. Utilizing the non-linear fitting
relationship between color changes( V values) and five concentrations of Cd( II) obeys the exponential functions.
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